Bump version.

Output "prater" as network name in launchpad format

.github/workflows/golangci-lint.yml

@@ -11,7 +11,7 @@ jobs:
         uses: golangci/golangci-lint-action@v2
         with:
           # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
-          version: v1.29
+          version: v1.45
 
           # Optional: working directory, useful for monorepos
           # working-directory: somedir

.github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
     - name: Set up Go 1.x
       uses: actions/setup-go@v2
       with:
-        go-version: ^1.16
+        go-version: ^1.17
       id: go
 
     - name: Check out code into the Go module directory
@@ -50,11 +50,11 @@ jobs:
 
     - name: Fetch xgo
       run: |
-       go get github.com/wealdtech/xgo
+       go install github.com/crazy-max/xgo@v0.14.0
 
     - name: Cross-compile linux
       run: |
-        xgo -v -x -ldflags="-X github.com/wealdtech/ethdo/cmd.ReleaseVersion=${RELEASE_VERSION}" --targets="linux/amd64" github.com/wealdtech/ethdo
+        xgo -v -x -ldflags="-X github.com/wealdtech/ethdo/cmd.ReleaseVersion=${RELEASE_VERSION}" --targets="linux/amd64,linux/arm64" github.com/wealdtech/ethdo
 
     - name: Cross-compile windows
       run: |
@@ -63,20 +63,20 @@ jobs:
     - name: Create windows release files
       run: |
        mv ethdo-windows-4.0-amd64.exe ethdo.exe
-       sha256sum ethdo.exe >ethdo-${RELEASE_VERSION}-windows.sha256
        zip --junk-paths ethdo-${RELEASE_VERSION}-windows-exe.zip ethdo.exe
+       sha256sum ethdo-${RELEASE_VERSION}-windows-exe.zip >ethdo-${RELEASE_VERSION}-windows.sha256
 
     - name: Create linux AMD64 tgz file
       run: |
        mv ethdo-linux-amd64 ethdo
-       sha256sum ethdo >ethdo-${RELEASE_VERSION}-linux-amd64.sha256
        tar zcf ethdo-${RELEASE_VERSION}-linux-amd64.tar.gz ethdo
+       sha256sum ethdo-${RELEASE_VERSION}-linux-amd64.tar.gz >ethdo-${RELEASE_VERSION}-linux-amd64.sha256
 
-       # - name: Create linux ARM64 tgz file
-       #   run: |
-       #    mv ethdo-linux-arm64 ethdo
-       #    sha256sum ethdo >ethdo-${RELEASE_VERSION}-linux-arm64.sha256
-       #    tar zcf ethdo-${RELEASE_VERSION}-linux-arm64.tar.gz ethdo
+    - name: Create linux ARM64 tgz file
+      run: |
+       mv ethdo-linux-arm64 ethdo
+       tar zcf ethdo-${RELEASE_VERSION}-linux-arm64.tar.gz ethdo
+       sha256sum ethdo-${RELEASE_VERSION}-linux-arm64.tar.gz >ethdo-${RELEASE_VERSION}-linux-arm64.sha256
 
     - name: Create release
       id: create_release
@@ -133,24 +133,24 @@ jobs:
         asset_name: ethdo-${{ env.RELEASE_VERSION }}-linux-amd64.tar.gz
         asset_content_type: application/gzip
 
-          # - name: Upload linux ARM64 checksum file
-          #   id: upload-release-asset-linux-arm64-checksum
-          #   uses: actions/upload-release-asset@v1
-          #   env:
-          #     GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          #   with:
-          #     upload_url: ${{ steps.create_release.outputs.upload_url }}
-          #     asset_path: ./ethdo-${{ env.RELEASE_VERSION }}-linux-arm64.sha256
-          #     asset_name: ethdo-${{ env.RELEASE_VERSION }}-linux-arm64.sha256
-          #     asset_content_type: text/plain
+    - name: Upload linux ARM64 checksum file
+      id: upload-release-asset-linux-arm64-checksum
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.create_release.outputs.upload_url }}
+        asset_path: ./ethdo-${{ env.RELEASE_VERSION }}-linux-arm64.sha256
+        asset_name: ethdo-${{ env.RELEASE_VERSION }}-linux-arm64.sha256
+        asset_content_type: text/plain
 
-          # - name: Upload linux ARM64 tgz file
-          #   id: upload-release-asset-linux-arm64
-          #   uses: actions/upload-release-asset@v1
-          #   env:
-          #     GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          #   with:
-          #     upload_url: ${{ steps.create_release.outputs.upload_url }}
-          #     asset_path: ./ethdo-${{ env.RELEASE_VERSION }}-linux-arm64.tar.gz
-          #     asset_name: ethdo-${{ env.RELEASE_VERSION }}-linux-arm64.tar.gz
-          #     asset_content_type: application/gzip
+    - name: Upload linux ARM64 tgz file
+      id: upload-release-asset-linux-arm64
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.create_release.outputs.upload_url }}
+        asset_path: ./ethdo-${{ env.RELEASE_VERSION }}-linux-arm64.tar.gz
+        asset_name: ethdo-${{ env.RELEASE_VERSION }}-linux-arm64.tar.gz
+        asset_content_type: application/gzip

CHANGELOG.md

@@ -1,3 +1,51 @@
+1.22.0:
+  - add "ropsten" to the list of supported networks
+
+1.21.0:
+  - add "validator credentials get"
+
+1.20.0:
+  - add "chain queues"
+
+1.19.1:
+  - add the ability to import keystores to ethdo wallets
+  - use defaults to connect to beacon nodes if no explicit connection defined
+
+1.19.0:
+  - add "epoch summary"
+
+1.18.2:
+  - tidy up output of "block info"
+
+1.18.1:
+  - do not show execution payload if empty
+
+1.18.0:
+  - add "-ssz" option to "block info"
+  - add "block analyze" command
+  - support bellatrix
+
+1.17.0:
+  - add sync committee information to "chain time"
+  - add details of vote success to "attester inclusion --verbose"
+  - add "synccommittee inclusion"
+
+1.15.1:
+  - provide sync committee slots in "chain status"
+  - clarify that --connection should be a URL
+
+1.15.0:
+  - add --period to "synccommittee members", can be "current", "next"
+  - add "validator expectation"
+
+1.14.0:
+  - add "chain verify signedcontributionandproof"
+  - show both block and body root in "block info"
+  - add exit / withdrawable epoch to "validator info"
+
+1.13.0:
+  - rework and provide additional information to "chain status" output
+
 1.12.0:
   - add "synccommittee members"
 

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.16-buster as builder
+FROM golang:1.17-bullseye as builder
 
 WORKDIR /app
 
@@ -10,7 +10,9 @@ COPY . .
 
 RUN go build
 
-FROM debian:buster-slim
+FROM debian:bullseye-slim
+
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt install -y ca-certificates && apt-get clean && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
 

README.md

@@ -11,6 +11,7 @@ A command-line tool for managing common tasks in Ethereum 2.
   - [Binaries](#binaries)
   - [Docker](#docker)
   - [Source](#source)
+- [Setting up](#setting-up)
 - [Usage](#usage)
 - [Maintainers](#maintainers)
 - [Contribute](#contribute)
@@ -61,13 +62,37 @@ docker run --network=host ethdo chain status
 
 Alternatively, if the beacon node is running in a separate docker container a shared network can be created with `docker network create eth2` and accessed by adding `--network=eth2` added to both the beacon node and `ethdo` containers.
 
+## Setting up
+
+`ethdo` needs a connection to a beacon node for many of its features.  `ethdo` can connect to any beacon node that fully supports the [standard REST API](https://ethereum.github.io/beacon-APIs/).  The following changes are required to beacon nodes to make this available.
+
+### Lighthouse
+Lighthouse disables the REST API by default.  To enable it, the beacon node must be started with the `--http` parameter.  If you want to access the REST API from a remote server then you should also look to change the `--http-address` and `--http-allow-origin` options as per the Lighthouse documentation.
+
+The default port for the REST API is 5052, which can be changed with the `--http-port` parameter.
+
+### Nimbus
+Nimbus disables the REST API by default.  To enable it, the beacon node must be started with the `--rest` parameter.  If you want to access the REST API from a remote server then you should also look to change the `--rest-address` and `--rest-allow-origin` options as per the Nimbus documentation.
+
+The default port for the REST API is 5052, which can be changed with the `--rest-port` parameter.
+
+### Prysm
+Prysm enables the REST API by default.  You will need to add the parameter `--grpc-max-msg-size 268435456` to be obtain to obtain large sets of information such as the list of current validators.  If you want to access the REST API from a remote server then you should also look to change the `--grpc-gateway-host` and `--grpc-gateway-corsdomain` options as per the Prysm documentation.
+
+The default port for the REST API is 3500, which can be changed with the `--grpc-gateway-port` parameter.
+
+### Teku
+Teku disables the REST API by default.  To enable it, the beacon node must be started with the `--rest-api-enabled` parameter.  If you want to access the REST API from a remote server then you should also look to change the `--rest-api-interface`, `--rest-api-host-allowlist` and `--rest-api-cors-origins` options as per the Teku documentation.
+
+The default port for the REST API is 5051, which can be changed with the `--rest-api-port` parameter.
+
 ## Usage
 
-ethdo contains a large number of features that are useful for day-to-day interactions with the Ethereum 2 blockchain.
+`ethdo` contains a large number of features that are useful for day-to-day interactions with the Ethereum 2 blockchain.
 
 ### Wallets and accounts
 
-ethdo uses the [go-eth2-wallet](https://github.com/wealdtech/go-eth2-wallet) system to provide unified access to different wallet types.  When on the filesystem the locations of the created wallets and accounts are:
+`ethdo` uses the [go-eth2-wallet](https://github.com/wealdtech/go-eth2-wallet) system to provide unified access to different wallet types.  When on the filesystem the locations of the created wallets and accounts are:
 
     - for Linux: $HOME/.config/ethereum2/wallets
     - for OSX: $HOME/Library/Application Support/ethereum2/wallets

cmd/account/import/input.go

@@ -1,4 +1,4 @@
-// Copyright © 2019, 2020 Weald Technology Trading
+// Copyright © 2019 - 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -16,6 +16,7 @@ package accountimport
 import (
 	"context"
 	"encoding/hex"
+	"io/ioutil"
 	"strings"
 	"time"
 
@@ -27,12 +28,14 @@ import (
 )
 
 type dataIn struct {
-	timeout          time.Duration
-	wallet           e2wtypes.Wallet
-	key              []byte
-	accountName      string
-	passphrase       string
-	walletPassphrase string
+	timeout            time.Duration
+	wallet             e2wtypes.Wallet
+	key                []byte
+	accountName        string
+	passphrase         string
+	walletPassphrase   string
+	keystore           []byte
+	keystorePassphrase []byte
 }
 
 func input(ctx context.Context) (*dataIn, error) {
@@ -74,14 +77,55 @@ func input(ctx context.Context) (*dataIn, error) {
 	// Wallet passphrase.
 	data.walletPassphrase = util.GetWalletPassphrase()
 
-	// Key.
-	if viper.GetString("key") == "" {
-		return nil, errors.New("key is required")
+	if viper.GetString("key") == "" && viper.GetString("keystore") == "" {
+		return nil, errors.New("key or keystore is required")
 	}
-	data.key, err = hex.DecodeString(strings.TrimPrefix(viper.GetString("key"), "0x"))
-	if err != nil {
-		return nil, errors.Wrap(err, "key is malformed")
+	if viper.GetString("key") != "" && viper.GetString("keystore") != "" {
+		return nil, errors.New("only one of key and keystore is required")
+	}
+
+	if viper.GetString("key") != "" {
+		data.key, err = hex.DecodeString(strings.TrimPrefix(viper.GetString("key"), "0x"))
+		if err != nil {
+			return nil, errors.Wrap(err, "key is malformed")
+		}
+	}
+
+	if viper.GetString("keystore") != "" {
+		data.keystorePassphrase = []byte(viper.GetString("keystore-passphrase"))
+		if len(data.keystorePassphrase) == 0 {
+			return nil, errors.New("must supply keystore passphrase with keystore-passphrase when supplying keystore")
+		}
+		data.keystore, err = obtainKeystore(viper.GetString("keystore"))
+		if err != nil {
+			return nil, errors.Wrap(err, "invalid keystore")
+		}
 	}
 
 	return data, nil
 }
+
+// obtainKeystore obtains keystore from an input, could be JSON itself or a path to JSON.
+func obtainKeystore(input string) ([]byte, error) {
+	var err error
+	var data []byte
+	// Input could be JSON or a path to JSON
+	if strings.HasPrefix(input, "{") {
+		// Looks like JSON
+		data = []byte(input)
+	} else {
+		// Assume it's a path to JSON
+		data, err = ioutil.ReadFile(input)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to find deposit data file")
+		}
+	}
+	return data, nil
+	//	exitData := &util.ValidatorExitData{}
+	//	err = json.Unmarshal(data, exitData)
+	//	if err != nil {
+	//		return nil, errors.Wrap(err, "data is not valid JSON")
+	//	}
+
+	//	return exitData, nil
+}

cmd/account/import/input_internal_test.go

@@ -102,7 +102,7 @@ func TestInput(t *testing.T) {
 				"account":    "Test wallet/Test account",
 				"passphrase": "ce%NohGhah4ye5ra",
 			},
-			err: "key is required",
+			err: "key or keystore is required",
 		},
 		{
 			name: "KeyMalformed",
@@ -114,6 +114,26 @@ func TestInput(t *testing.T) {
 			},
 			err: "key is malformed: encoding/hex: invalid byte: U+0069 'i'",
 		},
+		{
+			name: "KeyandKeystore",
+			vars: map[string]interface{}{
+				"timeout":    "5s",
+				"account":    "Test wallet/Test account",
+				"passphrase": "ce%NohGhah4ye5ra",
+				"key":        "0x25295f0d1d592a90b333e26e85149708208e9f8e8bc18f6c77bd62f8ad7a6866",
+				"keystore":   "{}",
+			},
+			err: "only one of key and keystore is required",
+		},
+		{
+			name: "KeystoreNoKeystorePassphrase",
+			vars: map[string]interface{}{
+				"timeout":  "5s",
+				"account":  "Test wallet/Test account",
+				"keystore": "{}",
+			},
+			err: "must supply keystore passphrase with keystore-passphrase when supplying keystore",
+		},
 		{
 			name: "Good",
 			vars: map[string]interface{}{

cmd/account/import/process.go

@@ -1,4 +1,4 @@
-// Copyright © 2019, 2020 Weald Technology Trading
+// Copyright © 2019 -2022 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,9 +15,14 @@ package accountimport
 
 import (
 	"context"
+	"fmt"
 
 	"github.com/pkg/errors"
 	"github.com/wealdtech/ethdo/util"
+	"github.com/wealdtech/go-ecodec"
+	keystorev4 "github.com/wealdtech/go-eth2-wallet-encryptor-keystorev4"
+	nd "github.com/wealdtech/go-eth2-wallet-nd/v2"
+	scratch "github.com/wealdtech/go-eth2-wallet-store-scratch"
 	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
@@ -43,9 +48,23 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 		}()
 	}
 
+	if len(data.key) > 0 {
+		return processFromKey(ctx, data)
+	}
+	if len(data.keystore) > 0 {
+		return processFromKeystore(ctx, data)
+	}
+	return nil, errors.New("unsupported import mechanism")
+}
+
+func processFromKey(ctx context.Context, data *dataIn) (*dataOut, error) {
 	results := &dataOut{}
 
-	account, err := data.wallet.(e2wtypes.WalletAccountImporter).ImportAccount(ctx, data.accountName, data.key, []byte(data.passphrase))
+	importer, isImporter := data.wallet.(e2wtypes.WalletAccountImporter)
+	if !isImporter {
+		return nil, fmt.Errorf("%s wallets do not support importing accounts", data.wallet.Type())
+	}
+	account, err := importer.ImportAccount(ctx, data.accountName, data.key, []byte(data.passphrase))
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to import account")
 	}
@@ -53,3 +72,39 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 
 	return results, nil
 }
+
+func processFromKeystore(ctx context.Context, data *dataIn) (*dataOut, error) {
+	// Need to import the keystore in to a temporary wallet to fetch the private key.
+	store := scratch.New()
+	encryptor := keystorev4.New()
+
+	// Need to add a couple of fields to the keystore to make it compliant.
+	keystoreData := fmt.Sprintf(`{"name":"Import","encryptor":"keystore",%s`, string(data.keystore[1:]))
+	walletData := fmt.Sprintf(`{"wallet":{"name":"ImportTest","type":"non-deterministic","uuid":"e1526407-1dc7-4f3f-9d05-ab696f40707c","version":1},"accounts":[%s]}`, keystoreData)
+	encryptedData, err := ecodec.Encrypt([]byte(walletData), data.keystorePassphrase)
+	if err != nil {
+		return nil, err
+	}
+	wallet, err := nd.Import(ctx, encryptedData, data.keystorePassphrase, store, encryptor)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to import wallet")
+	}
+
+	account := <-wallet.Accounts(ctx)
+	privateKeyProvider, isPrivateKeyProvider := account.(e2wtypes.AccountPrivateKeyProvider)
+	if !isPrivateKeyProvider {
+		return nil, errors.New("account does not provide its private key")
+	}
+	if locker, isLocker := account.(e2wtypes.AccountLocker); isLocker {
+		if err = locker.Unlock(ctx, data.keystorePassphrase); err != nil {
+			return nil, errors.Wrap(err, "failed to unlock account")
+		}
+	}
+	key, err := privateKeyProvider.PrivateKey(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to obtain private key")
+	}
+	data.key = key.Marshal()
+	// We have the key from the keystore; import it.
+	return processFromKey(ctx, data)
+}

cmd/accountimport.go

@@ -48,10 +48,18 @@ func init() {
 	accountCmd.AddCommand(accountImportCmd)
 	accountFlags(accountImportCmd)
 	accountImportCmd.Flags().String("key", "", "Private key of the account to import (0x...)")
+	accountImportCmd.Flags().String("keystore", "", "Keystore, or path to keystore ")
+	accountImportCmd.Flags().String("keystore-passphrase", "", "Passphrase of keystore")
 }
 
 func accountImportBindings() {
 	if err := viper.BindPFlag("key", accountImportCmd.Flags().Lookup("key")); err != nil {
 		panic(err)
 	}
+	if err := viper.BindPFlag("keystore", accountImportCmd.Flags().Lookup("keystore")); err != nil {
+		panic(err)
+	}
+	if err := viper.BindPFlag("keystore-passphrase", accountImportCmd.Flags().Lookup("keystore-passphrase")); err != nil {
+		panic(err)
+	}
 }

cmd/attester/duties/input.go

@@ -63,17 +63,19 @@ func input(ctx context.Context) (*dataIn, error) {
 	var err error
 	data.eth2Client, err = util.ConnectToBeaconNode(ctx, viper.GetString("connection"), viper.GetDuration("timeout"), viper.GetBool("allow-insecure-connections"))
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to connect to Ethereum 2 beacon node")
+		return nil, err
 	}
 
+	// Required data.
+	config, err := data.eth2Client.(eth2client.SpecProvider).Spec(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to obtain beacon chain configuration")
+	}
+	data.slotsPerEpoch = config["SLOTS_PER_EPOCH"].(uint64)
+
 	// Epoch
 	epoch := viper.GetInt64("epoch")
 	if epoch == -1 {
-		config, err := data.eth2Client.(eth2client.SpecProvider).Spec(ctx)
-		if err != nil {
-			return nil, errors.Wrap(err, "failed to obtain beacon chain configuration")
-		}
-		data.slotsPerEpoch = config["SLOTS_PER_EPOCH"].(uint64)
 		slotDuration := config["SECONDS_PER_SLOT"].(time.Duration)
 		genesis, err := data.eth2Client.(eth2client.GenesisProvider).Genesis(ctx)
 		if err != nil {

cmd/attester/duties/input_internal_test.go

@@ -73,7 +73,7 @@ func TestInput(t *testing.T) {
 				"timeout": "5s",
 				"pubkey":  "0xa99a76ed7796f7be22d5b7e85deeb7c5677e88e511e0b337618f8c4eb61349b4bf2d153f649f7b53359fe8b94a38e44c",
 			},
-			err: "failed to connect to Ethereum 2 beacon node: failed to connect to beacon node: problem with parameters: no address specified",
+			err: "failed to connect to beacon node: failed to connect to Ethereum 2 client with any known method",
 		},
 	}
 

cmd/attester/inclusion/input.go

@@ -15,12 +15,14 @@ package attesterinclusion
 
 import (
 	"context"
+	"fmt"
 	"time"
 
 	eth2client "github.com/attestantio/go-eth2-client"
 	spec "github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
 	"github.com/spf13/viper"
+	"github.com/wealdtech/ethdo/services/chaintime"
 	"github.com/wealdtech/ethdo/util"
 )
 
@@ -34,9 +36,11 @@ type dataIn struct {
 	slotsPerEpoch uint64
 	// Operation.
 	eth2Client eth2client.Service
+	chainTime  chaintime.Service
 	epoch      spec.Epoch
 	account    string
 	pubKey     string
+	index      string
 }
 
 func input(ctx context.Context) (*dataIn, error) {
@@ -50,18 +54,24 @@ func input(ctx context.Context) (*dataIn, error) {
 	data.verbose = viper.GetBool("verbose")
 	data.debug = viper.GetBool("debug")
 
-	// Account or pubkey.
-	if viper.GetString("account") == "" && viper.GetString("pubkey") == "" {
-		return nil, errors.New("account or pubkey is required")
-	}
+	// Account.
 	data.account = viper.GetString("account")
+
+	// PubKey.
 	data.pubKey = viper.GetString("pubkey")
 
+	// ID.
+	data.index = viper.GetString("index")
+
+	if viper.GetString("account") == "" && viper.GetString("index") == "" && viper.GetString("pubkey") == "" {
+		return nil, errors.New("account, index or pubkey is required")
+	}
+
 	// Ethereum 2 client.
 	var err error
 	data.eth2Client, err = util.ConnectToBeaconNode(ctx, viper.GetString("connection"), viper.GetDuration("timeout"), viper.GetBool("allow-insecure-connections"))
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to connect to Ethereum 2 beacon node")
+		return nil, err
 	}
 
 	config, err := data.eth2Client.(eth2client.SpecProvider).Spec(ctx)
@@ -84,6 +94,9 @@ func input(ctx context.Context) (*dataIn, error) {
 		}
 	}
 	data.epoch = spec.Epoch(epoch)
+	if data.debug {
+		fmt.Printf("Epoch is %d\n", data.epoch)
+	}
 
 	return data, nil
 }

cmd/attester/inclusion/input_internal_test.go

@@ -61,11 +61,11 @@ func TestInput(t *testing.T) {
 			err:  "timeout is required",
 		},
 		{
-			name: "AccountMissing",
+			name: "IndexMissing",
 			vars: map[string]interface{}{
 				"timeout": "5s",
 			},
-			err: "account or pubkey is required",
+			err: "account, index or pubkey is required",
 		},
 		{
 			name: "ConnectionMissing",
@@ -73,7 +73,7 @@ func TestInput(t *testing.T) {
 				"timeout": "5s",
 				"pubkey":  "0xa99a76ed7796f7be22d5b7e85deeb7c5677e88e511e0b337618f8c4eb61349b4bf2d153f649f7b53359fe8b94a38e44c",
 			},
-			err: "failed to connect to Ethereum 2 beacon node: failed to connect to beacon node: problem with parameters: no address specified",
+			err: "failed to connect to beacon node: failed to connect to Ethereum 2 client with any known method",
 		},
 	}
 

cmd/attester/inclusion/output.go

@@ -1,4 +1,4 @@
-// Copyright © 2019, 2020 Weald Technology Trading
+// Copyright © 2019 - 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -16,8 +16,9 @@ package attesterinclusion
 import (
 	"context"
 	"fmt"
+	"strings"
 
-	spec "github.com/attestantio/go-eth2-client/spec/phase0"
+	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
 )
 
@@ -25,22 +26,67 @@ type dataOut struct {
 	debug            bool
 	quiet            bool
 	verbose          bool
-	slot             spec.Slot
+	attestation      *phase0.Attestation
+	slot             phase0.Slot
 	attestationIndex uint64
-	inclusionDelay   spec.Slot
+	inclusionDelay   phase0.Slot
 	found            bool
+	headCorrect      bool
+	headTimely       bool
+	sourceTimely     bool
+	targetCorrect    bool
+	targetTimely     bool
 }
 
 func output(ctx context.Context, data *dataOut) (string, error) {
+	buf := strings.Builder{}
 	if data == nil {
-		return "", errors.New("no data")
+		return buf.String(), errors.New("no data")
 	}
 
 	if !data.quiet {
 		if data.found {
-			return fmt.Sprintf("Attestation included in block %d, attestation %d (inclusion delay %d)", data.slot, data.attestationIndex, data.inclusionDelay), nil
+			buf.WriteString("Attestation included in block ")
+			buf.WriteString(fmt.Sprintf("%d", data.slot))
+			buf.WriteString(", index ")
+			buf.WriteString(fmt.Sprintf("%d", data.attestationIndex))
+			if data.verbose {
+				buf.WriteString("\nInclusion delay: ")
+				buf.WriteString(fmt.Sprintf("%d", data.inclusionDelay))
+				buf.WriteString("\nHead correct: ")
+				if data.headCorrect {
+					buf.WriteString("✓")
+				} else {
+					buf.WriteString("✕")
+				}
+				buf.WriteString("\nHead timely: ")
+				if data.headTimely {
+					buf.WriteString("✓")
+				} else {
+					buf.WriteString("✕")
+				}
+				buf.WriteString("\nSource timely: ")
+				if data.sourceTimely {
+					buf.WriteString("✓")
+				} else {
+					buf.WriteString("✕")
+				}
+				buf.WriteString("\nTarget correct: ")
+				if data.targetCorrect {
+					buf.WriteString("✓")
+				} else {
+					buf.WriteString("✕")
+				}
+				buf.WriteString("\nTarget timely: ")
+				if data.targetTimely {
+					buf.WriteString("✓")
+				} else {
+					buf.WriteString("✕")
+				}
+			}
+		} else {
+			buf.WriteString("Attestation not found")
 		}
-		return "Attestation not found", nil
 	}
-	return "", nil
+	return buf.String(), nil
 }

cmd/attester/inclusion/output_internal_test.go

@@ -44,7 +44,29 @@ func TestOutput(t *testing.T) {
 				attestationIndex: 456,
 				inclusionDelay:   7,
 			},
-			res: "Attestation included in block 123, attestation 456 (inclusion delay 7)",
+			res: `Attestation included in block 123, index 456`,
+		},
+		{
+			name: "Verbose",
+			dataOut: &dataOut{
+				verbose:          true,
+				found:            true,
+				slot:             123,
+				attestationIndex: 456,
+				inclusionDelay:   7,
+				headCorrect:      true,
+				headTimely:       false,
+				sourceTimely:     false,
+				targetCorrect:    true,
+				targetTimely:     true,
+			},
+			res: `Attestation included in block 123, index 456
+Inclusion delay: 7
+Head correct: ✓
+Head timely: ✕
+Source timely: ✕
+Target correct: ✓
+Target timely: ✓`,
 		},
 	}
 

cmd/attester/inclusion/process.go

@@ -1,4 +1,4 @@
-// Copyright © 2019, 2020 Weald Technology Trading
+// Copyright © 2019 - 2022 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -14,17 +14,16 @@
 package attesterinclusion
 
 import (
+	"bytes"
 	"context"
-	"encoding/hex"
 	"fmt"
-	"strings"
 
 	eth2client "github.com/attestantio/go-eth2-client"
 	api "github.com/attestantio/go-eth2-client/api/v1"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
+	standardchaintime "github.com/wealdtech/ethdo/services/chaintime/standard"
 	"github.com/wealdtech/ethdo/util"
-	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
 func process(ctx context.Context, data *dataIn) (*dataOut, error) {
@@ -32,34 +31,23 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 		return nil, errors.New("no data")
 	}
 
-	var account e2wtypes.Account
 	var err error
-	if data.account != "" {
-		ctx, cancel := context.WithTimeout(ctx, data.timeout)
-		defer cancel()
-		_, account, err = util.WalletAndAccountFromPath(ctx, data.account)
-		if err != nil {
-			return nil, errors.Wrap(err, "failed to obtain account")
-		}
-	} else {
-		pubKeyBytes, err := hex.DecodeString(strings.TrimPrefix(data.pubKey, "0x"))
-		if err != nil {
-			return nil, errors.Wrap(err, fmt.Sprintf("failed to decode public key %s", data.pubKey))
-		}
-		account, err = util.NewScratchAccount(nil, pubKeyBytes)
-		if err != nil {
-			return nil, errors.Wrap(err, fmt.Sprintf("invalid public key %s", data.pubKey))
-		}
+
+	data.chainTime, err = standardchaintime.New(ctx,
+		standardchaintime.WithSpecProvider(data.eth2Client.(eth2client.SpecProvider)),
+		standardchaintime.WithForkScheduleProvider(data.eth2Client.(eth2client.ForkScheduleProvider)),
+		standardchaintime.WithGenesisTimeProvider(data.eth2Client.(eth2client.GenesisTimeProvider)),
+	)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to set up chaintime service")
 	}
 
-	// Fetch validator
-	pubKeys := make([]phase0.BLSPubKey, 1)
-	pubKey, err := util.BestPublicKey(account)
+	validatorIndex, err := util.ValidatorIndex(ctx, data.eth2Client, data.account, data.pubKey, data.index)
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to obtain public key for account")
+		return nil, errors.Wrap(err, "failed to obtain validator index")
 	}
-	copy(pubKeys[0][:], pubKey.Marshal())
-	validators, err := data.eth2Client.(eth2client.ValidatorsProvider).ValidatorsByPubKey(ctx, fmt.Sprintf("%d", uint64(data.epoch)*data.slotsPerEpoch), pubKeys)
+
+	validators, err := data.eth2Client.(eth2client.ValidatorsProvider).Validators(ctx, fmt.Sprintf("%d", uint64(data.epoch)*data.slotsPerEpoch), []phase0.ValidatorIndex{validatorIndex})
 	if err != nil {
 		return nil, errors.New("failed to obtain validator information")
 	}
@@ -81,6 +69,9 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to obtain duty for validator")
 	}
+	if data.debug {
+		fmt.Printf("Duty is %s\n", duty.String())
+	}
 
 	startSlot := duty.Slot + 1
 	endSlot := startSlot + 32
@@ -110,10 +101,32 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 			if attestation.Data.Slot == duty.Slot &&
 				attestation.Data.Index == duty.CommitteeIndex &&
 				attestation.AggregationBits.BitAt(duty.ValidatorCommitteeIndex) {
+
+				headCorrect := false
+				targetCorrect := false
+				if data.verbose {
+					headCorrect, err = calcHeadCorrect(ctx, data, attestation)
+					if err != nil {
+						return nil, errors.Wrap(err, "failed to obtain head correct result")
+					}
+					targetCorrect, err = calcTargetCorrect(ctx, data, attestation)
+					if err != nil {
+						return nil, errors.Wrap(err, "failed to obtain target correct result")
+					}
+				}
+				results.found = true
+				results.attestation = attestation
 				results.slot = slot
 				results.attestationIndex = uint64(i)
 				results.inclusionDelay = slot - duty.Slot
-				results.found = true
+				results.sourceTimely = results.inclusionDelay <= 5 // sqrt(32)
+				results.targetCorrect = targetCorrect
+				results.targetTimely = targetCorrect && results.inclusionDelay <= 32
+				results.headCorrect = headCorrect
+				results.headTimely = headCorrect && results.inclusionDelay == 1
+				if data.debug {
+					fmt.Printf("Attestation is %s\n", attestation.String())
+				}
 				return results, nil
 			}
 		}
@@ -121,6 +134,49 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 	return results, nil
 }
 
+func calcHeadCorrect(ctx context.Context, data *dataIn, attestation *phase0.Attestation) (bool, error) {
+	slot := attestation.Data.Slot
+	for {
+		header, err := data.eth2Client.(eth2client.BeaconBlockHeadersProvider).BeaconBlockHeader(ctx, fmt.Sprintf("%d", slot))
+		if err != nil {
+			return false, nil
+		}
+		if header == nil {
+			// No block.
+			slot--
+			continue
+		}
+		if !header.Canonical {
+			// Not canonical.
+			slot--
+			continue
+		}
+		return bytes.Equal(header.Root[:], attestation.Data.BeaconBlockRoot[:]), nil
+	}
+}
+
+func calcTargetCorrect(ctx context.Context, data *dataIn, attestation *phase0.Attestation) (bool, error) {
+	// Start with first slot of the target epoch.
+	slot := data.chainTime.FirstSlotOfEpoch(attestation.Data.Target.Epoch)
+	for {
+		header, err := data.eth2Client.(eth2client.BeaconBlockHeadersProvider).BeaconBlockHeader(ctx, fmt.Sprintf("%d", slot))
+		if err != nil {
+			return false, nil
+		}
+		if header == nil {
+			// No block.
+			slot--
+			continue
+		}
+		if !header.Canonical {
+			// Not canonical.
+			slot--
+			continue
+		}
+		return bytes.Equal(header.Root[:], attestation.Data.Target.Root[:]), nil
+	}
+}
+
 func duty(ctx context.Context, eth2Client eth2client.Service, validator *api.Validator, epoch phase0.Epoch, slotsPerEpoch uint64) (*api.AttesterDuty, error) {
 	// Find the attesting slot for the given epoch.
 	duties, err := eth2Client.(eth2client.AttesterDutiesProvider).AttesterDuties(ctx, epoch, []phase0.ValidatorIndex{validator.Index})

cmd/attesterinclusion.go

@@ -49,6 +49,7 @@ func init() {
 	attesterFlags(attesterInclusionCmd)
 	attesterInclusionCmd.Flags().Int64("epoch", -1, "the last complete epoch")
 	attesterInclusionCmd.Flags().String("pubkey", "", "the public key of the attester")
+	attesterInclusionCmd.Flags().Int64("index", -1, "the index of the attester")
 }
 
 func attesterInclusionBindings() {
@@ -58,4 +59,7 @@ func attesterInclusionBindings() {
 	if err := viper.BindPFlag("pubkey", attesterInclusionCmd.Flags().Lookup("pubkey")); err != nil {
 		panic(err)
 	}
+	if err := viper.BindPFlag("index", attesterInclusionCmd.Flags().Lookup("index")); err != nil {
+		panic(err)
+	}
 }

cmd/block/analyze/command.go

@@ -0,0 +1,136 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package blockanalyze
+
+import (
+	"context"
+	"time"
+
+	eth2client "github.com/attestantio/go-eth2-client"
+	"github.com/attestantio/go-eth2-client/spec/phase0"
+	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/go-bitfield"
+	"github.com/spf13/viper"
+	"github.com/wealdtech/ethdo/services/chaintime"
+)
+
+type command struct {
+	quiet   bool
+	verbose bool
+	debug   bool
+
+	// Beacon node connection.
+	timeout                  time.Duration
+	connection               string
+	allowInsecureConnections bool
+
+	// Operation.
+	blockID    string
+	stream     bool
+	jsonOutput bool
+
+	// Data access.
+	eth2Client           eth2client.Service
+	chainTime            chaintime.Service
+	blocksProvider       eth2client.SignedBeaconBlockProvider
+	blockHeadersProvider eth2client.BeaconBlockHeadersProvider
+
+	// Constants.
+	timelySourceWeight uint64
+	timelyTargetWeight uint64
+	timelyHeadWeight   uint64
+	syncRewardWeight   uint64
+	proposerWeight     uint64
+	weightDenominator  uint64
+
+	// Processing.
+	priorAttestations map[string]*attestationData
+	// Head roots provides the root of the head slot at given slots.
+	headRoots map[phase0.Slot]phase0.Root
+	// Target roots provides the root of the target epoch at given slots.
+	targetRoots map[phase0.Slot]phase0.Root
+
+	// Block info.
+	// Map is slot -> committee index -> validator committee index -> votes.
+	votes map[phase0.Slot]map[phase0.CommitteeIndex]bitfield.Bitlist
+
+	// Results.
+	analysis *blockAnalysis
+}
+
+type blockAnalysis struct {
+	Slot         phase0.Slot            `json:"slot"`
+	Attestations []*attestationAnalysis `json:"attestations"`
+	SyncCommitee *syncCommitteeAnalysis `json:"sync_committee"`
+	Value        float64                `json:"value"`
+}
+
+type attestationAnalysis struct {
+	Head          phase0.Root      `json:"head"`
+	Target        phase0.Root      `json:"target"`
+	Distance      int              `json:"distance"`
+	Duplicate     *attestationData `json:"duplicate,omitempty"`
+	NewVotes      int              `json:"new_votes"`
+	Votes         int              `json:"votes"`
+	PossibleVotes int              `json:"possible_votes"`
+	HeadCorrect   bool             `json:"head_correct"`
+	HeadTimely    bool             `json:"head_timely"`
+	SourceTimely  bool             `json:"source_timely"`
+	TargetCorrect bool             `json:"target_correct"`
+	TargetTimely  bool             `json:"target_timely"`
+	Score         float64          `json:"score"`
+	Value         float64          `json:"value"`
+}
+
+type syncCommitteeAnalysis struct {
+	Contributions         int     `json:"contributions"`
+	PossibleContributions int     `json:"possible_contributions"`
+	Score                 float64 `json:"score"`
+	Value                 float64 `json:"value"`
+}
+
+type attestationData struct {
+	Block phase0.Slot `json:"block"`
+	Index int         `json:"index"`
+}
+
+func newCommand(ctx context.Context) (*command, error) {
+	c := &command{
+		quiet:             viper.GetBool("quiet"),
+		verbose:           viper.GetBool("verbose"),
+		debug:             viper.GetBool("debug"),
+		priorAttestations: make(map[string]*attestationData),
+		headRoots:         make(map[phase0.Slot]phase0.Root),
+		targetRoots:       make(map[phase0.Slot]phase0.Root),
+		votes:             make(map[phase0.Slot]map[phase0.CommitteeIndex]bitfield.Bitlist),
+	}
+
+	// Timeout.
+	if viper.GetDuration("timeout") == 0 {
+		return nil, errors.New("timeout is required")
+	}
+	c.timeout = viper.GetDuration("timeout")
+
+	if viper.GetString("connection") == "" {
+		return nil, errors.New("connection is required")
+	}
+	c.connection = viper.GetString("connection")
+	c.allowInsecureConnections = viper.GetBool("allow-insecure-connections")
+
+	c.blockID = viper.GetString("blockid")
+	c.stream = viper.GetBool("stream")
+	c.jsonOutput = viper.GetBool("json")
+
+	return c, nil
+}

cmd/block/analyze/command_internal_test.go

@@ -0,0 +1,82 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package blockanalyze
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestInput(t *testing.T) {
+	if os.Getenv("ETHDO_TEST_CONNECTION") == "" {
+		t.Skip("ETHDO_TEST_CONNECTION not configured; cannot run tests")
+	}
+
+	tests := []struct {
+		name string
+		vars map[string]interface{}
+		err  string
+	}{
+		{
+			name: "TimeoutMissing",
+			vars: map[string]interface{}{},
+			err:  "timeout is required",
+		},
+		{
+			name: "ConnectionMissing",
+			vars: map[string]interface{}{
+				"validators": "1",
+				"timeout":    "5s",
+			},
+			err: "connection is required",
+		},
+		{
+			name: "ValidatorsZero",
+			vars: map[string]interface{}{
+				"timeout":    "5s",
+				"validators": "0",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+			err: "validators must be at least 1",
+		},
+		{
+			name: "Good",
+			vars: map[string]interface{}{
+				"validators": "1",
+				"timeout":    "5s",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			viper.Reset()
+
+			for k, v := range test.vars {
+				viper.Set(k, v)
+			}
+			_, err := newCommand(context.Background())
+			if test.err != "" {
+				require.EqualError(t, err, test.err)
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}

cmd/block/analyze/output.go

@@ -0,0 +1,157 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package blockanalyze
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"strings"
+)
+
+func (c *command) output(ctx context.Context) (string, error) {
+	if c.quiet {
+		return "", nil
+	}
+
+	if c.jsonOutput {
+		return c.outputJSON(ctx)
+	}
+
+	return c.outputTxt(ctx)
+}
+
+type attestationAnalysisJSON struct {
+	Head          string           `json:"head"`
+	Target        string           `json:"target"`
+	Distance      int              `json:"distance"`
+	Duplicate     *attestationData `json:"duplicate,omitempty"`
+	NewVotes      int              `json:"new_votes"`
+	Votes         int              `json:"votes"`
+	PossibleVotes int              `json:"possible_votes"`
+	HeadCorrect   bool             `json:"head_correct"`
+	HeadTimely    bool             `json:"head_timely"`
+	SourceTimely  bool             `json:"source_timely"`
+	TargetCorrect bool             `json:"target_correct"`
+	TargetTimely  bool             `json:"target_timely"`
+	Score         float64          `json:"score"`
+	Value         float64          `json:"value"`
+}
+
+func (a *attestationAnalysis) MarshalJSON() ([]byte, error) {
+	return json.Marshal(attestationAnalysisJSON{
+		Head:          fmt.Sprintf("%#x", a.Head),
+		Target:        fmt.Sprintf("%#x", a.Target),
+		Distance:      a.Distance,
+		Duplicate:     a.Duplicate,
+		NewVotes:      a.NewVotes,
+		Votes:         a.Votes,
+		PossibleVotes: a.PossibleVotes,
+		HeadCorrect:   a.HeadCorrect,
+		HeadTimely:    a.HeadTimely,
+		SourceTimely:  a.SourceTimely,
+		TargetCorrect: a.TargetCorrect,
+		TargetTimely:  a.TargetTimely,
+		Score:         a.Score,
+		Value:         a.Value,
+	})
+}
+
+func (c *command) outputJSON(_ context.Context) (string, error) {
+	data, err := json.Marshal(c.analysis)
+	if err != nil {
+		return "", err
+	}
+	return string(data), nil
+}
+
+func (c *command) outputTxt(_ context.Context) (string, error) {
+	builder := strings.Builder{}
+
+	for i, attestation := range c.analysis.Attestations {
+		if c.verbose {
+			builder.WriteString("Attestation ")
+			builder.WriteString(fmt.Sprintf("%d", i))
+			builder.WriteString(": ")
+			builder.WriteString("distance ")
+			builder.WriteString(fmt.Sprintf("%d", attestation.Distance))
+			builder.WriteString(", ")
+
+			if attestation.Duplicate != nil {
+				builder.WriteString("duplicate of attestation ")
+				builder.WriteString(fmt.Sprintf("%d", attestation.Duplicate.Index))
+				builder.WriteString(" in block ")
+				builder.WriteString(fmt.Sprintf("%d", attestation.Duplicate.Block))
+				builder.WriteString("\n")
+				continue
+			}
+
+			builder.WriteString(fmt.Sprintf("%d", attestation.NewVotes))
+			builder.WriteString("/")
+			builder.WriteString(fmt.Sprintf("%d", attestation.Votes))
+			builder.WriteString("/")
+			builder.WriteString(fmt.Sprintf("%d", attestation.PossibleVotes))
+			builder.WriteString(" new/total/possible votes")
+			if attestation.NewVotes == 0 {
+				builder.WriteString("\n")
+				continue
+			} else {
+				builder.WriteString(", ")
+			}
+			switch {
+			case !attestation.HeadCorrect:
+				builder.WriteString("head vote incorrect, ")
+			case !attestation.HeadTimely:
+				builder.WriteString("head vote correct but late, ")
+			}
+
+			if !attestation.SourceTimely {
+				builder.WriteString("source vote late, ")
+			}
+
+			switch {
+			case !attestation.TargetCorrect:
+				builder.WriteString("target vote incorrect, ")
+			case !attestation.TargetTimely:
+				builder.WriteString("target vote correct but late, ")
+			}
+
+			builder.WriteString("score ")
+			builder.WriteString(fmt.Sprintf("%0.3f", attestation.Score))
+			builder.WriteString(", value ")
+			builder.WriteString(fmt.Sprintf("%0.3f", attestation.Value))
+			builder.WriteString("\n")
+		}
+	}
+
+	if c.analysis.SyncCommitee.Contributions > 0 {
+		if c.verbose {
+			builder.WriteString("Sync committee contributions: ")
+			builder.WriteString(fmt.Sprintf("%d", c.analysis.SyncCommitee.Contributions))
+			builder.WriteString(" contributions, score ")
+			builder.WriteString(fmt.Sprintf("%0.3f", c.analysis.SyncCommitee.Score))
+			builder.WriteString(", value ")
+			builder.WriteString(fmt.Sprintf("%0.3f", c.analysis.SyncCommitee.Value))
+			builder.WriteString("\n")
+		}
+	}
+
+	builder.WriteString("Value for block ")
+	builder.WriteString(fmt.Sprintf("%d", c.analysis.Slot))
+	builder.WriteString(": ")
+	builder.WriteString(fmt.Sprintf("%0.3f", c.analysis.Value))
+	builder.WriteString("\n")
+
+	return builder.String(), nil
+}

cmd/block/analyze/process.go

@@ -0,0 +1,431 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package blockanalyze
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+
+	eth2client "github.com/attestantio/go-eth2-client"
+	"github.com/attestantio/go-eth2-client/spec"
+	"github.com/attestantio/go-eth2-client/spec/phase0"
+	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/go-bitfield"
+	standardchaintime "github.com/wealdtech/ethdo/services/chaintime/standard"
+	"github.com/wealdtech/ethdo/util"
+)
+
+func (c *command) process(ctx context.Context) error {
+	// Obtain information we need to process.
+	if err := c.setup(ctx); err != nil {
+		return err
+	}
+
+	block, err := c.blocksProvider.SignedBeaconBlock(ctx, c.blockID)
+	if err != nil {
+		return errors.Wrap(err, "failed to obtain beacon block")
+	}
+	if block == nil {
+		return errors.New("empty beacon block")
+	}
+
+	slot, err := block.Slot()
+	if err != nil {
+		return err
+	}
+	attestations, err := block.Attestations()
+	if err != nil {
+		return err
+	}
+
+	c.analysis = &blockAnalysis{
+		Slot: slot,
+	}
+
+	// Calculate how many parents we need to fetch.
+	minSlot := slot
+	for _, attestation := range attestations {
+		if attestation.Data.Slot < minSlot {
+			minSlot = attestation.Data.Slot
+		}
+	}
+	if c.debug {
+		fmt.Printf("Need to fetch blocks to slot %d\n", minSlot)
+	}
+
+	if err := c.fetchParents(ctx, block, minSlot); err != nil {
+		return err
+	}
+
+	return c.analyze(ctx, block)
+}
+
+func (c *command) analyze(ctx context.Context, block *spec.VersionedSignedBeaconBlock) error {
+	if err := c.analyzeAttestations(ctx, block); err != nil {
+		return err
+	}
+
+	if err := c.analyzeSyncCommittees(ctx, block); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (c *command) analyzeAttestations(ctx context.Context, block *spec.VersionedSignedBeaconBlock) error {
+	attestations, err := block.Attestations()
+	if err != nil {
+		return err
+	}
+	slot, err := block.Slot()
+	if err != nil {
+		return err
+	}
+
+	c.analysis.Attestations = make([]*attestationAnalysis, len(attestations))
+
+	blockVotes := make(map[phase0.Slot]map[phase0.CommitteeIndex]bitfield.Bitlist)
+	for i, attestation := range attestations {
+		if c.debug {
+			fmt.Printf("Processing attestation %d\n", i)
+		}
+		analysis := &attestationAnalysis{
+			Head:     attestation.Data.BeaconBlockRoot,
+			Target:   attestation.Data.Target.Root,
+			Distance: int(slot - attestation.Data.Slot),
+		}
+
+		root, err := attestation.HashTreeRoot()
+		if err != nil {
+			return err
+		}
+		if info, exists := c.priorAttestations[fmt.Sprintf("%#x", root)]; exists {
+			analysis.Duplicate = info
+		} else {
+			data := attestation.Data
+			_, exists := blockVotes[data.Slot]
+			if !exists {
+				blockVotes[data.Slot] = make(map[phase0.CommitteeIndex]bitfield.Bitlist)
+			}
+			_, exists = blockVotes[data.Slot][data.Index]
+			if !exists {
+				blockVotes[data.Slot][data.Index] = bitfield.NewBitlist(attestation.AggregationBits.Len())
+			}
+
+			// Count new votes.
+			analysis.PossibleVotes = int(attestation.AggregationBits.Len())
+			for j := uint64(0); j < attestation.AggregationBits.Len(); j++ {
+				if attestation.AggregationBits.BitAt(j) {
+					analysis.Votes++
+					if blockVotes[data.Slot][data.Index].BitAt(j) {
+						// Already attested to in this block; skip.
+						continue
+					}
+					if c.votes[data.Slot][data.Index].BitAt(j) {
+						// Already attested to in a previous block; skip.
+						continue
+					}
+					analysis.NewVotes++
+					blockVotes[data.Slot][data.Index].SetBitAt(j, true)
+				}
+			}
+			// Calculate head correct.
+			var err error
+			analysis.HeadCorrect, err = c.calcHeadCorrect(ctx, attestation)
+			if err != nil {
+				return err
+			}
+
+			// Calculate head timely.
+			analysis.HeadTimely = attestation.Data.Slot == slot-1
+
+			// Calculate source timely.
+			analysis.SourceTimely = attestation.Data.Slot >= slot-5
+
+			// Calculate target correct.
+			analysis.TargetCorrect, err = c.calcTargetCorrect(ctx, attestation)
+			if err != nil {
+				return err
+			}
+
+			// Calculate target timely.
+			analysis.TargetTimely = attestation.Data.Slot >= slot-32
+		}
+
+		// Calculate score and value.
+		if analysis.TargetCorrect && analysis.TargetTimely {
+			analysis.Score += float64(c.timelyTargetWeight) / float64(c.weightDenominator)
+		}
+		if analysis.SourceTimely {
+			analysis.Score += float64(c.timelySourceWeight) / float64(c.weightDenominator)
+		}
+		if analysis.HeadCorrect && analysis.HeadTimely {
+			analysis.Score += float64(c.timelyHeadWeight) / float64(c.weightDenominator)
+		}
+		analysis.Value = analysis.Score * float64(analysis.NewVotes)
+		c.analysis.Value += analysis.Value
+
+		c.analysis.Attestations[i] = analysis
+	}
+
+	return nil
+}
+
+func (c *command) fetchParents(ctx context.Context, block *spec.VersionedSignedBeaconBlock, minSlot phase0.Slot) error {
+	parentRoot, err := block.ParentRoot()
+	if err != nil {
+		return err
+	}
+
+	// Obtain the parent block.
+	parentBlock, err := c.blocksProvider.SignedBeaconBlock(ctx, fmt.Sprintf("%#x", parentRoot))
+	if err != nil {
+		return err
+	}
+	if parentBlock == nil {
+		return fmt.Errorf("unable to obtain parent block %s", parentBlock)
+	}
+
+	parentSlot, err := parentBlock.Slot()
+	if err != nil {
+		return err
+	}
+	if parentSlot < minSlot {
+		return nil
+	}
+
+	if err := c.processParentBlock(ctx, parentBlock); err != nil {
+		return err
+	}
+
+	return c.fetchParents(ctx, parentBlock, minSlot)
+}
+
+func (c *command) processParentBlock(ctx context.Context, block *spec.VersionedSignedBeaconBlock) error {
+	attestations, err := block.Attestations()
+	if err != nil {
+		return err
+	}
+	slot, err := block.Slot()
+	if err != nil {
+		return err
+	}
+	if c.debug {
+		fmt.Printf("Processing block %d\n", slot)
+	}
+
+	for i, attestation := range attestations {
+		root, err := attestation.HashTreeRoot()
+		if err != nil {
+			return err
+		}
+		c.priorAttestations[fmt.Sprintf("%#x", root)] = &attestationData{
+			Block: slot,
+			Index: i,
+		}
+
+		data := attestation.Data
+		_, exists := c.votes[data.Slot]
+		if !exists {
+			c.votes[data.Slot] = make(map[phase0.CommitteeIndex]bitfield.Bitlist)
+		}
+		_, exists = c.votes[data.Slot][data.Index]
+		if !exists {
+			c.votes[data.Slot][data.Index] = bitfield.NewBitlist(attestation.AggregationBits.Len())
+		}
+		for j := uint64(0); j < attestation.AggregationBits.Len(); j++ {
+			if attestation.AggregationBits.BitAt(j) {
+				c.votes[data.Slot][data.Index].SetBitAt(j, true)
+			}
+		}
+	}
+
+	return nil
+}
+
+func (c *command) setup(ctx context.Context) error {
+	var err error
+
+	// Connect to the client.
+	c.eth2Client, err = util.ConnectToBeaconNode(ctx, c.connection, c.timeout, c.allowInsecureConnections)
+	if err != nil {
+		return errors.Wrap(err, "failed to connect to beacon node")
+	}
+
+	c.chainTime, err = standardchaintime.New(ctx,
+		standardchaintime.WithSpecProvider(c.eth2Client.(eth2client.SpecProvider)),
+		standardchaintime.WithForkScheduleProvider(c.eth2Client.(eth2client.ForkScheduleProvider)),
+		standardchaintime.WithGenesisTimeProvider(c.eth2Client.(eth2client.GenesisTimeProvider)),
+	)
+	if err != nil {
+		return errors.Wrap(err, "failed to set up chaintime service")
+	}
+
+	// Obtain the number of active validators.
+	var isProvider bool
+	c.blocksProvider, isProvider = c.eth2Client.(eth2client.SignedBeaconBlockProvider)
+	if !isProvider {
+		return errors.New("connection does not provide signed beacon block information")
+	}
+	c.blockHeadersProvider, isProvider = c.eth2Client.(eth2client.BeaconBlockHeadersProvider)
+	if !isProvider {
+		return errors.New("connection does not provide beacon block header information")
+	}
+
+	specProvider, isProvider := c.eth2Client.(eth2client.SpecProvider)
+	if !isProvider {
+		return errors.New("connection does not provide spec information")
+	}
+
+	spec, err := specProvider.Spec(ctx)
+	if err != nil {
+		return errors.Wrap(err, "failed to obtain spec")
+	}
+
+	tmp, exists := spec["TIMELY_SOURCE_WEIGHT"]
+	if !exists {
+		// Set a default value based on the Altair spec.
+		tmp = uint64(14)
+	}
+	var ok bool
+	c.timelySourceWeight, ok = tmp.(uint64)
+	if !ok {
+		return errors.New("TIMELY_SOURCE_WEIGHT of unexpected type")
+	}
+
+	tmp, exists = spec["TIMELY_TARGET_WEIGHT"]
+	if !exists {
+		// Set a default value based on the Altair spec.
+		tmp = uint64(26)
+	}
+	c.timelyTargetWeight, ok = tmp.(uint64)
+	if !ok {
+		return errors.New("TIMELY_TARGET_WEIGHT of unexpected type")
+	}
+
+	tmp, exists = spec["TIMELY_HEAD_WEIGHT"]
+	if !exists {
+		// Set a default value based on the Altair spec.
+		tmp = uint64(14)
+	}
+	c.timelyHeadWeight, ok = tmp.(uint64)
+	if !ok {
+		return errors.New("TIMELY_HEAD_WEIGHT of unexpected type")
+	}
+
+	tmp, exists = spec["SYNC_REWARD_WEIGHT"]
+	if !exists {
+		// Set a default value based on the Altair spec.
+		tmp = uint64(2)
+	}
+	c.syncRewardWeight, ok = tmp.(uint64)
+	if !ok {
+		return errors.New("SYNC_REWARD_WEIGHT of unexpected type")
+	}
+
+	tmp, exists = spec["PROPOSER_WEIGHT"]
+	if !exists {
+		// Set a default value based on the Altair spec.
+		tmp = uint64(8)
+	}
+	c.proposerWeight, ok = tmp.(uint64)
+	if !ok {
+		return errors.New("PROPOSER_WEIGHT of unexpected type")
+	}
+
+	tmp, exists = spec["WEIGHT_DENOMINATOR"]
+	if !exists {
+		// Set a default value based on the Altair spec.
+		tmp = uint64(64)
+	}
+	c.weightDenominator, ok = tmp.(uint64)
+	if !ok {
+		return errors.New("WEIGHT_DENOMINATOR of unexpected type")
+	}
+	return nil
+}
+
+func (c *command) calcHeadCorrect(ctx context.Context, attestation *phase0.Attestation) (bool, error) {
+	slot := attestation.Data.Slot
+	root, exists := c.headRoots[slot]
+	if !exists {
+		for {
+			header, err := c.blockHeadersProvider.BeaconBlockHeader(ctx, fmt.Sprintf("%d", slot))
+			if err != nil {
+				return false, nil
+			}
+			if header == nil {
+				// No block.
+				slot--
+				continue
+			}
+			if !header.Canonical {
+				// Not canonical.
+				slot--
+				continue
+			}
+			c.headRoots[attestation.Data.Slot] = header.Root
+			root = header.Root
+			break
+		}
+	}
+
+	return bytes.Equal(root[:], attestation.Data.BeaconBlockRoot[:]), nil
+}
+
+func (c *command) calcTargetCorrect(ctx context.Context, attestation *phase0.Attestation) (bool, error) {
+	root, exists := c.targetRoots[attestation.Data.Slot]
+	if !exists {
+		// Start with first slot of the target epoch.
+		slot := c.chainTime.FirstSlotOfEpoch(attestation.Data.Target.Epoch)
+		for {
+			header, err := c.blockHeadersProvider.BeaconBlockHeader(ctx, fmt.Sprintf("%d", slot))
+			if err != nil {
+				return false, nil
+			}
+			if header == nil {
+				// No block.
+				slot--
+				continue
+			}
+			if !header.Canonical {
+				// Not canonical.
+				slot--
+				continue
+			}
+			c.targetRoots[attestation.Data.Slot] = header.Root
+			root = header.Root
+			break
+		}
+	}
+	return bytes.Equal(root[:], attestation.Data.Target.Root[:]), nil
+}
+
+func (c *command) analyzeSyncCommittees(ctx context.Context, block *spec.VersionedSignedBeaconBlock) error {
+	c.analysis.SyncCommitee = &syncCommitteeAnalysis{}
+	switch block.Version {
+	case spec.DataVersionPhase0:
+		return nil
+	case spec.DataVersionAltair:
+		c.analysis.SyncCommitee.Contributions = int(block.Altair.Message.Body.SyncAggregate.SyncCommitteeBits.Count())
+		c.analysis.SyncCommitee.PossibleContributions = int(block.Altair.Message.Body.SyncAggregate.SyncCommitteeBits.Len())
+		c.analysis.SyncCommitee.Score = float64(c.syncRewardWeight) / float64(c.weightDenominator)
+		c.analysis.SyncCommitee.Value = c.analysis.SyncCommitee.Score * float64(c.analysis.SyncCommitee.Contributions)
+		c.analysis.Value += c.analysis.SyncCommitee.Value
+		return nil
+	default:
+		return fmt.Errorf("unsupported block version %d", block.Version)
+	}
+}

cmd/block/analyze/process_internal_test.go

@@ -0,0 +1,63 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package blockanalyze
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestProcess(t *testing.T) {
+	if os.Getenv("ETHDO_TEST_CONNECTION") == "" {
+		t.Skip("ETHDO_TEST_CONNECTION not configured; cannot run tests")
+	}
+
+	tests := []struct {
+		name string
+		vars map[string]interface{}
+		err  string
+	}{
+		{
+			name: "InvalidData",
+			vars: map[string]interface{}{
+				"timeout":    "60s",
+				"validators": "1",
+				"data":       "[[",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			viper.Reset()
+
+			for k, v := range test.vars {
+				viper.Set(k, v)
+			}
+			cmd, err := newCommand(context.Background())
+			require.NoError(t, err)
+			err = cmd.process(context.Background())
+			if test.err != "" {
+				require.EqualError(t, err, test.err)
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}

cmd/block/analyze/run.go

@@ -0,0 +1,50 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package blockanalyze
+
+import (
+	"context"
+
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+// Run runs the command.
+func Run(cmd *cobra.Command) (string, error) {
+	ctx := context.Background()
+
+	c, err := newCommand(ctx)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to set up command")
+	}
+
+	// Further errors do not need a usage report.
+	cmd.SilenceUsage = true
+
+	if err := c.process(ctx); err != nil {
+		return "", errors.Wrap(err, "failed to process")
+	}
+
+	if viper.GetBool("quiet") {
+		return "", nil
+	}
+
+	results, err := c.output(ctx)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to obtain output")
+	}
+
+	return results, nil
+}

cmd/block/info/input.go

@@ -32,6 +32,7 @@ type dataIn struct {
 	// Operation.
 	eth2Client eth2client.Service
 	jsonOutput bool
+	sszOutput  bool
 	// Chain information.
 	blockID string
 	stream  bool
@@ -48,13 +49,14 @@ func input(ctx context.Context) (*dataIn, error) {
 	data.verbose = viper.GetBool("verbose")
 	data.debug = viper.GetBool("debug")
 	data.jsonOutput = viper.GetBool("json")
+	data.sszOutput = viper.GetBool("ssz")
 
 	data.stream = viper.GetBool("stream")
 
 	var err error
 	data.eth2Client, err = util.ConnectToBeaconNode(ctx, viper.GetString("connection"), viper.GetDuration("timeout"), viper.GetBool("allow-insecure-connections"))
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to connect to Ethereum 2 beacon node")
+		return nil, err
 	}
 
 	if viper.GetString("blockid") == "" {

cmd/block/info/input_internal_test.go

@@ -66,7 +66,7 @@ func TestInput(t *testing.T) {
 			vars: map[string]interface{}{
 				"timeout": "5s",
 			},
-			err: "failed to connect to Ethereum 2 beacon node: failed to connect to beacon node: problem with parameters: no address specified",
+			err: "failed to connect to beacon node: failed to connect to Ethereum 2 client with any known method",
 		},
 		{
 			name: "ConnectionBad",
@@ -79,7 +79,7 @@ func TestInput(t *testing.T) {
 				timeout: 5 * time.Second,
 				blockID: "justified",
 			},
-			err: "failed to connect to Ethereum 2 beacon node: failed to connect to beacon node: failed to connect to Ethereum 2 client with any known method",
+			err: "failed to connect to beacon node: failed to connect to Ethereum 2 client with any known method",
 		},
 		{
 			name: "BlockIDNil",

cmd/block/info/output.go

@@ -18,6 +18,7 @@ import (
 	"context"
 	"encoding/hex"
 	"fmt"
+	"math/big"
 	"sort"
 	"strings"
 	"time"
@@ -25,6 +26,7 @@ import (
 
 	eth2client "github.com/attestantio/go-eth2-client"
 	"github.com/attestantio/go-eth2-client/spec/altair"
+	"github.com/attestantio/go-eth2-client/spec/bellatrix"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
 	"github.com/prysmaticlabs/go-bitfield"
@@ -51,6 +53,7 @@ func output(ctx context.Context, data *dataOut) (string, error) {
 func outputBlockGeneral(ctx context.Context,
 	verbose bool,
 	slot phase0.Slot,
+	blockRoot phase0.Root,
 	bodyRoot phase0.Root,
 	parentRoot phase0.Root,
 	stateRoot phase0.Root,
@@ -67,12 +70,14 @@ func outputBlockGeneral(ctx context.Context,
 	res.WriteString(fmt.Sprintf("Slot: %d\n", slot))
 	res.WriteString(fmt.Sprintf("Epoch: %d\n", phase0.Epoch(uint64(slot)/slotsPerEpoch)))
 	res.WriteString(fmt.Sprintf("Timestamp: %v\n", time.Unix(genesisTime.Unix()+int64(slot)*int64(slotDuration.Seconds()), 0)))
-	res.WriteString(fmt.Sprintf("Block root: %#x\n", bodyRoot))
+	res.WriteString(fmt.Sprintf("Block root: %#x\n", blockRoot))
 	if verbose {
+		res.WriteString(fmt.Sprintf("Body root: %#x\n", bodyRoot))
 		res.WriteString(fmt.Sprintf("Parent root: %#x\n", parentRoot))
 		res.WriteString(fmt.Sprintf("State root: %#x\n", stateRoot))
 	}
 	if len(graffiti) > 0 && hex.EncodeToString(graffiti) != "0000000000000000000000000000000000000000000000000000000000000000" {
+		graffiti = bytes.TrimRight(graffiti, "\u0000")
 		if utf8.Valid(graffiti) {
 			res.WriteString(fmt.Sprintf("Graffiti: %s\n", string(graffiti)))
 		} else {
@@ -109,13 +114,15 @@ func outputBlockAttestations(ctx context.Context, eth2Client eth2client.Service,
 				if !exists {
 					beaconCommittees, err := beaconCommitteesProvider.BeaconCommittees(ctx, fmt.Sprintf("%d", att.Data.Slot))
 					if err != nil {
-						return "", errors.Wrap(err, "failed to obtain beacon committees")
-					}
-					for _, beaconCommittee := range beaconCommittees {
-						if _, exists := validatorCommittees[beaconCommittee.Slot]; !exists {
-							validatorCommittees[beaconCommittee.Slot] = make(map[phase0.CommitteeIndex][]phase0.ValidatorIndex)
+						// Failed to get it; create an empty committee to stop us continually attempting to re-fetch.
+						validatorCommittees[att.Data.Slot] = make(map[phase0.CommitteeIndex][]phase0.ValidatorIndex)
+					} else {
+						for _, beaconCommittee := range beaconCommittees {
+							if _, exists := validatorCommittees[beaconCommittee.Slot]; !exists {
+								validatorCommittees[beaconCommittee.Slot] = make(map[phase0.CommitteeIndex][]phase0.ValidatorIndex)
+							}
+							validatorCommittees[beaconCommittee.Slot][beaconCommittee.Index] = beaconCommittee.Validators
 						}
-						validatorCommittees[beaconCommittee.Slot][beaconCommittee.Index] = beaconCommittee.Validators
 					}
 					committees = validatorCommittees[att.Data.Slot]
 				}
@@ -123,7 +130,9 @@ func outputBlockAttestations(ctx context.Context, eth2Client eth2client.Service,
 				res.WriteString(fmt.Sprintf("    Committee index: %d\n", att.Data.Index))
 				res.WriteString(fmt.Sprintf("    Attesters: %d/%d\n", att.AggregationBits.Count(), att.AggregationBits.Len()))
 				res.WriteString(fmt.Sprintf("    Aggregation bits: %s\n", bitlistToString(att.AggregationBits)))
-				res.WriteString(fmt.Sprintf("    Attesting indices: %s\n", attestingIndices(att.AggregationBits, committees[att.Data.Index])))
+				if _, exists := committees[att.Data.Index]; exists {
+					res.WriteString(fmt.Sprintf("    Attesting indices: %s\n", attestingIndices(att.AggregationBits, committees[att.Data.Index])))
+				}
 				res.WriteString(fmt.Sprintf("    Slot: %d\n", att.Data.Slot))
 				res.WriteString(fmt.Sprintf("    Beacon block root: %#x\n", att.Data.BeaconBlockRoot))
 				res.WriteString(fmt.Sprintf("    Source epoch: %d\n", att.Data.Source.Epoch))
@@ -261,6 +270,96 @@ func outputBlockSyncAggregate(ctx context.Context, eth2Client eth2client.Service
 	return res.String(), nil
 }
 
+func outputBellatrixBlockText(ctx context.Context, data *dataOut, signedBlock *bellatrix.SignedBeaconBlock) (string, error) {
+	if signedBlock == nil {
+		return "", errors.New("no block supplied")
+	}
+
+	body := signedBlock.Message.Body
+
+	res := strings.Builder{}
+
+	// General info.
+	blockRoot, err := signedBlock.Message.HashTreeRoot()
+	if err != nil {
+		return "", errors.Wrap(err, "failed to obtain block root")
+	}
+	bodyRoot, err := signedBlock.Message.Body.HashTreeRoot()
+	if err != nil {
+		return "", errors.Wrap(err, "failed to generate body root")
+	}
+
+	tmp, err := outputBlockGeneral(ctx,
+		data.verbose,
+		signedBlock.Message.Slot,
+		blockRoot,
+		bodyRoot,
+		signedBlock.Message.ParentRoot,
+		signedBlock.Message.StateRoot,
+		signedBlock.Message.Body.Graffiti,
+		data.genesisTime,
+		data.slotDuration,
+		data.slotsPerEpoch)
+	if err != nil {
+		return "", err
+	}
+	res.WriteString(tmp)
+
+	// Eth1 data.
+	if data.verbose {
+		tmp, err := outputBlockETH1Data(ctx, body.ETH1Data)
+		if err != nil {
+			return "", err
+		}
+		res.WriteString(tmp)
+	}
+
+	// Sync aggregate.
+	tmp, err = outputBlockSyncAggregate(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.SyncAggregate, phase0.Epoch(uint64(signedBlock.Message.Slot)/data.slotsPerEpoch))
+	if err != nil {
+		return "", err
+	}
+	res.WriteString(tmp)
+
+	// Attestations.
+	tmp, err = outputBlockAttestations(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.Attestations)
+	if err != nil {
+		return "", err
+	}
+	res.WriteString(tmp)
+
+	// Attester slashings.
+	tmp, err = outputBlockAttesterSlashings(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.AttesterSlashings)
+	if err != nil {
+		return "", err
+	}
+	res.WriteString(tmp)
+
+	res.WriteString(fmt.Sprintf("Proposer slashings: %d\n", len(body.ProposerSlashings)))
+	// Add verbose proposer slashings.
+
+	tmp, err = outputBlockDeposits(ctx, data.verbose, signedBlock.Message.Body.Deposits)
+	if err != nil {
+		return "", err
+	}
+	res.WriteString(tmp)
+
+	// Voluntary exits.
+	tmp, err = outputBlockVoluntaryExits(ctx, data.eth2Client, data.verbose, signedBlock.Message.Body.VoluntaryExits)
+	if err != nil {
+		return "", err
+	}
+	res.WriteString(tmp)
+
+	tmp, err = outputBlockExecutionPayload(ctx, data.verbose, signedBlock.Message.Body.ExecutionPayload)
+	if err != nil {
+		return "", err
+	}
+	res.WriteString(tmp)
+
+	return res.String(), nil
+}
+
 func outputAltairBlockText(ctx context.Context, data *dataOut, signedBlock *altair.SignedBeaconBlock) (string, error) {
 	if signedBlock == nil {
 		return "", errors.New("no block supplied")
@@ -271,13 +370,19 @@ func outputAltairBlockText(ctx context.Context, data *dataOut, signedBlock *alta
 	res := strings.Builder{}
 
 	// General info.
+	blockRoot, err := signedBlock.Message.HashTreeRoot()
+	if err != nil {
+		return "", errors.Wrap(err, "failed to obtain block root")
+	}
 	bodyRoot, err := signedBlock.Message.Body.HashTreeRoot()
 	if err != nil {
-		return "", errors.Wrap(err, "failed to generate block root")
+		return "", errors.Wrap(err, "failed to generate body root")
 	}
+
 	tmp, err := outputBlockGeneral(ctx,
 		data.verbose,
 		signedBlock.Message.Slot,
+		blockRoot,
 		bodyRoot,
 		signedBlock.Message.ParentRoot,
 		signedBlock.Message.StateRoot,
@@ -349,6 +454,10 @@ func outputPhase0BlockText(ctx context.Context, data *dataOut, signedBlock *phas
 	res := strings.Builder{}
 
 	// General info.
+	blockRoot, err := signedBlock.Message.HashTreeRoot()
+	if err != nil {
+		return "", errors.Wrap(err, "failed to obtain block root")
+	}
 	bodyRoot, err := signedBlock.Message.Body.HashTreeRoot()
 	if err != nil {
 		return "", errors.Wrap(err, "failed to generate block root")
@@ -356,6 +465,7 @@ func outputPhase0BlockText(ctx context.Context, data *dataOut, signedBlock *phas
 	tmp, err := outputBlockGeneral(ctx,
 		data.verbose,
 		signedBlock.Message.Slot,
+		blockRoot,
 		bodyRoot,
 		signedBlock.Message.ParentRoot,
 		signedBlock.Message.StateRoot,
@@ -410,6 +520,64 @@ func outputPhase0BlockText(ctx context.Context, data *dataOut, signedBlock *phas
 	return res.String(), nil
 }
 
+func outputBlockExecutionPayload(ctx context.Context,
+	verbose bool,
+	payload *bellatrix.ExecutionPayload,
+) (
+	string,
+	error,
+) {
+	if payload == nil {
+		return "", nil
+	}
+
+	// If the block number is 0 then we're before the merge.
+	if payload.BlockNumber == 0 {
+		return "", nil
+	}
+
+	res := strings.Builder{}
+	if !verbose {
+		res.WriteString("Execution block number: ")
+		res.WriteString(fmt.Sprintf("%d\n", payload.BlockNumber))
+	} else {
+		res.WriteString("Execution payload:\n")
+		res.WriteString("  Execution block number: ")
+		res.WriteString(fmt.Sprintf("%d\n", payload.BlockNumber))
+		baseFeePerGasBEBytes := make([]byte, len(payload.BaseFeePerGas))
+		for i := 0; i < 32; i++ {
+			baseFeePerGasBEBytes[i] = payload.BaseFeePerGas[32-1-i]
+		}
+		baseFeePerGas := new(big.Int).SetBytes(baseFeePerGasBEBytes)
+		res.WriteString("  Base fee per gas: ")
+		res.WriteString(string2eth.WeiToString(baseFeePerGas, true))
+		res.WriteString("\n  Block hash: ")
+		res.WriteString(fmt.Sprintf("%#x\n", payload.BlockHash))
+		res.WriteString("  Parent hash: ")
+		res.WriteString(fmt.Sprintf("%#x\n", payload.ParentHash))
+		res.WriteString("  Fee recipient: ")
+		res.WriteString(fmt.Sprintf("%#x\n", payload.FeeRecipient))
+		res.WriteString("  Gas limit: ")
+		res.WriteString(fmt.Sprintf("%d\n", payload.GasLimit))
+		res.WriteString("  Gas used: ")
+		res.WriteString(fmt.Sprintf("%d\n", payload.GasUsed))
+		res.WriteString("  Timestamp: ")
+		res.WriteString(fmt.Sprintf("%s (%d)\n", time.Unix(int64(payload.Timestamp), 0).String(), payload.Timestamp))
+		res.WriteString("  Prev RANDAO: ")
+		res.WriteString(fmt.Sprintf("%#x\n", payload.PrevRandao))
+		res.WriteString("  Receipts root: ")
+		res.WriteString(fmt.Sprintf("%#x\n", payload.ReceiptsRoot))
+		res.WriteString("  State root: ")
+		res.WriteString(fmt.Sprintf("%#x\n", payload.StateRoot))
+		res.WriteString("  Extra data: ")
+		res.WriteString(fmt.Sprintf("%#x\n", payload.ExtraData))
+		res.WriteString("  Logs bloom: ")
+		res.WriteString(fmt.Sprintf("%#x\n", payload.LogsBloom))
+	}
+
+	return res.String(), nil
+}
+
 // intersection returns a list of items common between the two sets.
 func intersection(set1 []uint64, set2 []uint64) []phase0.ValidatorIndex {
 	sort.Slice(set1, func(i, j int) bool { return set1[i] < set1[j] })

cmd/block/info/process.go

@@ -23,11 +23,13 @@ import (
 	api "github.com/attestantio/go-eth2-client/api/v1"
 	"github.com/attestantio/go-eth2-client/spec"
 	"github.com/attestantio/go-eth2-client/spec/altair"
+	"github.com/attestantio/go-eth2-client/spec/bellatrix"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
 )
 
 var jsonOutput bool
+var sszOutput bool
 var results *dataOut
 
 func process(ctx context.Context, data *dataIn) (*dataOut, error) {
@@ -66,7 +68,11 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 			return nil, errors.Wrap(err, "failed to output block")
 		}
 	case spec.DataVersionAltair:
-		if err := outputAltairBlock(ctx, data.jsonOutput, signedBlock.Altair); err != nil {
+		if err := outputAltairBlock(ctx, data.jsonOutput, data.sszOutput, signedBlock.Altair); err != nil {
+			return nil, errors.Wrap(err, "failed to output block")
+		}
+	case spec.DataVersionBellatrix:
+		if err := outputBellatrixBlock(ctx, data.jsonOutput, data.sszOutput, signedBlock.Bellatrix); err != nil {
 			return nil, errors.Wrap(err, "failed to output block")
 		}
 	default:
@@ -75,6 +81,7 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 
 	if data.stream {
 		jsonOutput = data.jsonOutput
+		sszOutput = data.sszOutput
 		err := data.eth2Client.(eth2client.EventsProvider).Events(ctx, []string{"head"}, headEventHandler)
 		if err != nil {
 			return nil, errors.Wrap(err, "failed to start block stream")
@@ -94,26 +101,43 @@ func headEventHandler(event *api.Event) {
 	blockID := fmt.Sprintf("%#x", event.Data.(*api.HeadEvent).Block[:])
 	signedBlock, err := results.eth2Client.(eth2client.SignedBeaconBlockProvider).SignedBeaconBlock(context.Background(), blockID)
 	if err != nil {
-		fmt.Printf("Failed to obtain block: %v\n", err)
+		if !jsonOutput {
+			fmt.Printf("Failed to obtain block: %v\n", err)
+		}
 		return
 	}
 	if signedBlock == nil {
-		fmt.Println("Empty beacon block")
+		if !jsonOutput {
+			fmt.Println("Empty beacon block")
+		}
 		return
 	}
 	switch signedBlock.Version {
 	case spec.DataVersionPhase0:
 		if err := outputPhase0Block(context.Background(), jsonOutput, signedBlock.Phase0); err != nil {
-			fmt.Printf("Failed to output block: %v\n", err)
+			if !jsonOutput {
+				fmt.Printf("Failed to output block: %v\n", err)
+			}
 			return
 		}
 	case spec.DataVersionAltair:
-		if err := outputAltairBlock(context.Background(), jsonOutput, signedBlock.Altair); err != nil {
-			fmt.Printf("Failed to output block: %v\n", err)
+		if err := outputAltairBlock(context.Background(), jsonOutput, sszOutput, signedBlock.Altair); err != nil {
+			if !jsonOutput {
+				fmt.Printf("Failed to output block: %v\n", err)
+			}
+			return
+		}
+	case spec.DataVersionBellatrix:
+		if err := outputBellatrixBlock(context.Background(), jsonOutput, sszOutput, signedBlock.Bellatrix); err != nil {
+			if !jsonOutput {
+				fmt.Printf("Failed to output block: %v\n", err)
+			}
 			return
 		}
 	default:
-		fmt.Printf("Unknown block version: %v\n", signedBlock.Version)
+		if !jsonOutput {
+			fmt.Printf("Unknown block version: %v\n", signedBlock.Version)
+		}
 		return
 	}
 }
@@ -136,7 +160,7 @@ func outputPhase0Block(ctx context.Context, jsonOutput bool, signedBlock *phase0
 	return nil
 }
 
-func outputAltairBlock(ctx context.Context, jsonOutput bool, signedBlock *altair.SignedBeaconBlock) error {
+func outputAltairBlock(ctx context.Context, jsonOutput bool, sszOutput bool, signedBlock *altair.SignedBeaconBlock) error {
 	switch {
 	case jsonOutput:
 		data, err := json.Marshal(signedBlock)
@@ -144,6 +168,12 @@ func outputAltairBlock(ctx context.Context, jsonOutput bool, signedBlock *altair
 			return errors.Wrap(err, "failed to generate JSON")
 		}
 		fmt.Printf("%s\n", string(data))
+	case sszOutput:
+		data, err := signedBlock.MarshalSSZ()
+		if err != nil {
+			return errors.Wrap(err, "failed to generate SSZ")
+		}
+		fmt.Printf("%x\n", data)
 	default:
 		data, err := outputAltairBlockText(ctx, results, signedBlock)
 		if err != nil {
@@ -153,3 +183,27 @@ func outputAltairBlock(ctx context.Context, jsonOutput bool, signedBlock *altair
 	}
 	return nil
 }
+
+func outputBellatrixBlock(ctx context.Context, jsonOutput bool, sszOutput bool, signedBlock *bellatrix.SignedBeaconBlock) error {
+	switch {
+	case jsonOutput:
+		data, err := json.Marshal(signedBlock)
+		if err != nil {
+			return errors.Wrap(err, "failed to generate JSON")
+		}
+		fmt.Printf("%s\n", string(data))
+	case sszOutput:
+		data, err := signedBlock.MarshalSSZ()
+		if err != nil {
+			return errors.Wrap(err, "failed to generate SSZ")
+		}
+		fmt.Printf("%x\n", data)
+	default:
+		data, err := outputBellatrixBlockText(ctx, results, signedBlock)
+		if err != nil {
+			return errors.Wrap(err, "failed to generate text")
+		}
+		fmt.Printf("%s\n", data)
+	}
+	return nil
+}

cmd/block/info/process_internal_test.go

@@ -47,7 +47,7 @@ func TestProcess(t *testing.T) {
 			dataIn: &dataIn{
 				eth2Client: eth2Client,
 			},
-			err: "failed to output block: failed to generate text: no block supplied",
+			err: "empty beacon block",
 		},
 	}
 

cmd/blockanalyze.go

@@ -0,0 +1,65 @@
+// Copyright © 2022 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	blockanalyze "github.com/wealdtech/ethdo/cmd/block/analyze"
+)
+
+var blockAnalyzeCmd = &cobra.Command{
+	Use:   "analyze",
+	Short: "Analyze a block",
+	Long: `Analyze the contents of a block.  For example:
+
+    ethdo block analyze --blockid=12345
+
+In quiet mode this will return 0 if the block information is present and not skipped, otherwise 1.`,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		res, err := blockanalyze.Run(cmd)
+		if err != nil {
+			return err
+		}
+		if viper.GetBool("quiet") {
+			return nil
+		}
+		if res != "" {
+			fmt.Print(res)
+		}
+		return nil
+	},
+}
+
+func init() {
+	blockCmd.AddCommand(blockAnalyzeCmd)
+	blockFlags(blockAnalyzeCmd)
+	blockAnalyzeCmd.Flags().String("blockid", "head", "the ID of the block to fetch")
+	blockAnalyzeCmd.Flags().Bool("stream", false, "continually stream blocks as they arrive")
+	blockAnalyzeCmd.Flags().Bool("json", false, "output data in JSON format")
+}
+
+func blockAnalyzeBindings() {
+	if err := viper.BindPFlag("blockid", blockAnalyzeCmd.Flags().Lookup("blockid")); err != nil {
+		panic(err)
+	}
+	if err := viper.BindPFlag("stream", blockAnalyzeCmd.Flags().Lookup("stream")); err != nil {
+		panic(err)
+	}
+	if err := viper.BindPFlag("json", blockAnalyzeCmd.Flags().Lookup("json")); err != nil {
+		panic(err)
+	}
+}

cmd/blockinfo.go

@@ -26,7 +26,7 @@ var blockInfoCmd = &cobra.Command{
 	Short: "Obtain information about a block",
 	Long: `Obtain information about a block.  For example:
 
-    ethdo block info --slot=12345
+    ethdo block info --blockid=12345
 
 In quiet mode this will return 0 if the block information is present and not skipped, otherwise 1.`,
 	RunE: func(cmd *cobra.Command, args []string) error {
@@ -50,6 +50,7 @@ func init() {
 	blockInfoCmd.Flags().String("blockid", "head", "the ID of the block to fetch")
 	blockInfoCmd.Flags().Bool("stream", false, "continually stream blocks as they arrive")
 	blockInfoCmd.Flags().Bool("json", false, "output data in JSON format")
+	blockInfoCmd.Flags().Bool("ssz", false, "output data in SSZ format")
 }
 
 func blockInfoBindings() {
@@ -62,4 +63,7 @@ func blockInfoBindings() {
 	if err := viper.BindPFlag("json", blockInfoCmd.Flags().Lookup("json")); err != nil {
 		panic(err)
 	}
+	if err := viper.BindPFlag("ssz", blockInfoCmd.Flags().Lookup("ssz")); err != nil {
+		panic(err)
+	}
 }

cmd/chain/queues/command.go

@@ -0,0 +1,75 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package chainqueues
+
+import (
+	"context"
+	"time"
+
+	eth2client "github.com/attestantio/go-eth2-client"
+	"github.com/pkg/errors"
+	"github.com/spf13/viper"
+	"github.com/wealdtech/ethdo/services/chaintime"
+)
+
+type command struct {
+	quiet   bool
+	verbose bool
+	debug   bool
+	json    bool
+
+	// Beacon node connection.
+	timeout                  time.Duration
+	connection               string
+	allowInsecureConnections bool
+
+	// Input.
+	epoch string
+
+	// Data access.
+	eth2Client         eth2client.Service
+	validatorsProvider eth2client.ValidatorsProvider
+	chainTime          chaintime.Service
+
+	// Output.
+	activationQueue int
+	exitQueue       int
+}
+
+func newCommand(ctx context.Context) (*command, error) {
+	c := &command{
+		quiet:   viper.GetBool("quiet"),
+		verbose: viper.GetBool("verbose"),
+		debug:   viper.GetBool("debug"),
+		json:    viper.GetBool("json"),
+	}
+
+	// Timeout.
+	if viper.GetDuration("timeout") == 0 {
+		return nil, errors.New("timeout is required")
+	}
+	c.timeout = viper.GetDuration("timeout")
+
+	if viper.GetString("epoch") != "" {
+		c.epoch = viper.GetString("epoch")
+	}
+
+	if viper.GetString("connection") == "" {
+		return nil, errors.New("connection is required")
+	}
+	c.connection = viper.GetString("connection")
+	c.allowInsecureConnections = viper.GetBool("allow-insecure-connections")
+
+	return c, nil
+}

cmd/chain/queues/command_internal_test.go

@@ -0,0 +1,72 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package chainqueues
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestInput(t *testing.T) {
+	if os.Getenv("ETHDO_TEST_CONNECTION") == "" {
+		t.Skip("ETHDO_TEST_CONNECTION not configured; cannot run tests")
+	}
+
+	tests := []struct {
+		name string
+		vars map[string]interface{}
+		err  string
+	}{
+		{
+			name: "TimeoutMissing",
+			vars: map[string]interface{}{},
+			err:  "timeout is required",
+		},
+		{
+			name: "ConnectionMissing",
+			vars: map[string]interface{}{
+				"timeout": "5s",
+				"data":    "{}",
+			},
+			err: "connection is required",
+		},
+		{
+			name: "Good",
+			vars: map[string]interface{}{
+				"timeout":    "5s",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			viper.Reset()
+
+			for k, v := range test.vars {
+				viper.Set(k, v)
+			}
+			_, err := newCommand(context.Background())
+			if test.err != "" {
+				require.EqualError(t, err, test.err)
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}

cmd/chain/queues/output.go

@@ -0,0 +1,63 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package chainqueues
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"strings"
+)
+
+type jsonOutput struct {
+	ActivationQueue int `json:"activation_queue"`
+	ExitQueue       int `json:"exit_queue"`
+}
+
+func (c *command) output(ctx context.Context) (string, error) {
+	if c.quiet {
+		return "", nil
+	}
+
+	if c.json {
+		return c.outputJSON(ctx)
+	}
+	return c.outputText(ctx)
+}
+
+func (c *command) outputJSON(ctx context.Context) (string, error) {
+	output := &jsonOutput{
+		ActivationQueue: c.activationQueue,
+		ExitQueue:       c.exitQueue,
+	}
+	data, err := json.Marshal(output)
+	if err != nil {
+		return "", err
+	}
+
+	return string(data), nil
+}
+
+func (c *command) outputText(ctx context.Context) (string, error) {
+	builder := strings.Builder{}
+
+	if c.activationQueue > 0 {
+		builder.WriteString(fmt.Sprintf("Activation queue: %d\n", c.activationQueue))
+	}
+	if c.exitQueue > 0 {
+		builder.WriteString(fmt.Sprintf("Exit queue: %d\n", c.exitQueue))
+	}
+
+	return strings.TrimSuffix(builder.String(), "\n"), nil
+}

cmd/chain/queues/process.go

@@ -0,0 +1,82 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package chainqueues
+
+import (
+	"context"
+	"fmt"
+
+	eth2client "github.com/attestantio/go-eth2-client"
+	"github.com/pkg/errors"
+	standardchaintime "github.com/wealdtech/ethdo/services/chaintime/standard"
+	"github.com/wealdtech/ethdo/util"
+)
+
+func (c *command) process(ctx context.Context) error {
+	// Obtain information we need to process.
+	if err := c.setup(ctx); err != nil {
+		return err
+	}
+
+	epoch, err := util.ParseEpoch(ctx, c.chainTime, c.epoch)
+	if err != nil {
+		return err
+	}
+
+	validators, err := c.validatorsProvider.Validators(ctx, fmt.Sprintf("%d", c.chainTime.FirstSlotOfEpoch(epoch)), nil)
+	if err != nil {
+		return errors.Wrap(err, "failed to obtain validators")
+	}
+
+	for _, validator := range validators {
+		if validator.Validator == nil {
+			continue
+		}
+		if validator.Validator.ActivationEligibilityEpoch <= epoch && validator.Validator.ActivationEpoch > epoch {
+			c.activationQueue++
+		}
+		if validator.Validator.ExitEpoch != 0xffffffffffffffff && validator.Validator.ExitEpoch > epoch {
+			c.exitQueue++
+		}
+	}
+
+	return nil
+}
+
+func (c *command) setup(ctx context.Context) error {
+	var err error
+
+	// Connect to the client.
+	c.eth2Client, err = util.ConnectToBeaconNode(ctx, c.connection, c.timeout, c.allowInsecureConnections)
+	if err != nil {
+		return errors.Wrap(err, "failed to connect to beacon node")
+	}
+
+	c.chainTime, err = standardchaintime.New(ctx,
+		standardchaintime.WithSpecProvider(c.eth2Client.(eth2client.SpecProvider)),
+		standardchaintime.WithForkScheduleProvider(c.eth2Client.(eth2client.ForkScheduleProvider)),
+		standardchaintime.WithGenesisTimeProvider(c.eth2Client.(eth2client.GenesisTimeProvider)),
+	)
+	if err != nil {
+		return errors.Wrap(err, "failed to set up chaintime service")
+	}
+
+	var isProvider bool
+	c.validatorsProvider, isProvider = c.eth2Client.(eth2client.ValidatorsProvider)
+	if !isProvider {
+		return errors.New("connection does not provide validator information")
+	}
+
+	return nil
+}

cmd/chain/queues/process_internal_test.go

@@ -0,0 +1,66 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package chainqueues
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/rs/zerolog"
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestProcess(t *testing.T) {
+	if os.Getenv("ETHDO_TEST_CONNECTION") == "" {
+		t.Skip("ETHDO_TEST_CONNECTION not configured; cannot run tests")
+	}
+
+	zerolog.SetGlobalLevel(zerolog.Disabled)
+
+	tests := []struct {
+		name string
+		vars map[string]interface{}
+		err  string
+	}{
+		{
+			name: "InvalidEpoch",
+			vars: map[string]interface{}{
+				"timeout":    "5s",
+				"epoch":      "invalid",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+			err: "failed to parse epoch: strconv.ParseInt: parsing \"invalid\": invalid syntax",
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			viper.Reset()
+
+			for k, v := range test.vars {
+				viper.Set(k, v)
+			}
+			cmd, err := newCommand(context.Background())
+			require.NoError(t, err)
+			err = cmd.process(context.Background())
+			if test.err != "" {
+				require.EqualError(t, err, test.err)
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}

cmd/chain/queues/run.go

@@ -0,0 +1,50 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package chainqueues
+
+import (
+	"context"
+
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+// Run runs the command.
+func Run(cmd *cobra.Command) (string, error) {
+	ctx := context.Background()
+
+	c, err := newCommand(ctx)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to set up command")
+	}
+
+	// Further errors do not need a usage report.
+	cmd.SilenceUsage = true
+
+	if err := c.process(ctx); err != nil {
+		return "", errors.Wrap(err, "failed to process")
+	}
+
+	if viper.GetBool("quiet") {
+		return "", nil
+	}
+
+	results, err := c.output(ctx)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to obtain output")
+	}
+
+	return results, nil
+}

cmd/chain/time/output.go

@@ -28,12 +28,17 @@ type dataOut struct {
 	quiet   bool
 	verbose bool
 
-	epoch      spec.Epoch
-	epochStart time.Time
-	epochEnd   time.Time
-	slot       spec.Slot
-	slotStart  time.Time
-	slotEnd    time.Time
+	epoch                         spec.Epoch
+	epochStart                    time.Time
+	epochEnd                      time.Time
+	slot                          spec.Slot
+	slotStart                     time.Time
+	slotEnd                       time.Time
+	syncCommitteePeriod           uint64
+	syncCommitteePeriodStart      time.Time
+	syncCommitteePeriodEpochStart spec.Epoch
+	syncCommitteePeriodEnd        time.Time
+	syncCommitteePeriodEpochEnd   spec.Epoch
 }
 
 func output(ctx context.Context, data *dataOut) (string, error) {
@@ -60,7 +65,18 @@ func output(ctx context.Context, data *dataOut) (string, error) {
 	builder.WriteString(data.slotStart.Format("2006-01-02 15:04:05"))
 	builder.WriteString("\n  Slot end ")
 	builder.WriteString(data.slotEnd.Format("2006-01-02 15:04:05"))
-	builder.WriteString("\n")
+
+	builder.WriteString("\nSync committee period ")
+	builder.WriteString(fmt.Sprintf("%d", data.syncCommitteePeriod))
+	builder.WriteString("\n  Sync committee period start ")
+	builder.WriteString(data.syncCommitteePeriodStart.Format("2006-01-02 15:04:05"))
+	builder.WriteString(" (epoch ")
+	builder.WriteString(fmt.Sprintf("%d", data.syncCommitteePeriodEpochStart))
+	builder.WriteString(")\n  Sync committee period end ")
+	builder.WriteString(data.syncCommitteePeriodEnd.Format("2006-01-02 15:04:05"))
+	builder.WriteString(" (epoch ")
+	builder.WriteString(fmt.Sprintf("%d", data.syncCommitteePeriodEpochEnd))
+	builder.WriteString(")\n")
 
 	return builder.String(), nil
 }

cmd/chain/time/process.go

@@ -19,7 +19,7 @@ import (
 	"time"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	spec "github.com/attestantio/go-eth2-client/spec/phase0"
+	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
 	"github.com/wealdtech/ethdo/util"
 )
@@ -41,6 +41,7 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 
 	slotsPerEpoch := config["SLOTS_PER_EPOCH"].(uint64)
 	slotDuration := config["SECONDS_PER_SLOT"].(time.Duration)
+	epochsPerSyncCommitteePeriod := config["EPOCHS_PER_SYNC_COMMITTEE_PERIOD"].(uint64)
 	genesis, err := eth2Client.(eth2client.GenesisProvider).Genesis(ctx)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to obtain genesis data")
@@ -59,13 +60,13 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 		if err != nil {
 			return nil, errors.Wrap(err, "failed to parse slot")
 		}
-		results.slot = spec.Slot(slot)
+		results.slot = phase0.Slot(slot)
 	case data.epoch != "":
 		epoch, err := strconv.ParseUint(data.epoch, 10, 64)
 		if err != nil {
 			return nil, errors.Wrap(err, "failed to parse epoch")
 		}
-		results.slot = spec.Slot(epoch * slotsPerEpoch)
+		results.slot = phase0.Slot(epoch * slotsPerEpoch)
 	case data.timestamp != "":
 		timestamp, err := time.Parse("2006-01-02T15:04:05-0700", data.timestamp)
 		if err != nil {
@@ -75,15 +76,20 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 		if secs < 0 {
 			return nil, errors.New("timestamp prior to genesis")
 		}
-		results.slot = spec.Slot(secs / slotDuration)
+		results.slot = phase0.Slot(secs / slotDuration)
 	}
 
 	// Fill in the info given the slot.
 	results.slotStart = genesis.GenesisTime.Add(time.Duration(results.slot) * slotDuration)
 	results.slotEnd = genesis.GenesisTime.Add(time.Duration(results.slot+1) * slotDuration)
-	results.epoch = spec.Epoch(uint64(results.slot) / slotsPerEpoch)
+	results.epoch = phase0.Epoch(uint64(results.slot) / slotsPerEpoch)
 	results.epochStart = genesis.GenesisTime.Add(time.Duration(uint64(results.epoch)*slotsPerEpoch) * slotDuration)
 	results.epochEnd = genesis.GenesisTime.Add(time.Duration(uint64(results.epoch+1)*slotsPerEpoch) * slotDuration)
+	results.syncCommitteePeriod = uint64(results.epoch) / epochsPerSyncCommitteePeriod
+	results.syncCommitteePeriodEpochStart = phase0.Epoch(results.syncCommitteePeriod * epochsPerSyncCommitteePeriod)
+	results.syncCommitteePeriodEpochEnd = phase0.Epoch((results.syncCommitteePeriod+1)*epochsPerSyncCommitteePeriod) - 1
+	results.syncCommitteePeriodStart = genesis.GenesisTime.Add(time.Duration(uint64(results.syncCommitteePeriodEpochStart)*slotsPerEpoch) * slotDuration)
+	results.syncCommitteePeriodEnd = genesis.GenesisTime.Add(time.Duration(uint64(results.syncCommitteePeriodEpochEnd)*slotsPerEpoch) * slotDuration)
 
 	return results, nil
 }

cmd/chain/time/process_internal_test.go

@@ -15,6 +15,7 @@ package chaintime
 
 import (
 	"context"
+	"fmt"
 	"os"
 	"testing"
 	"time"
@@ -46,11 +47,16 @@ func TestProcess(t *testing.T) {
 				slot:                     "1",
 			},
 			expected: &dataOut{
-				epochStart: time.Unix(1606824023, 0),
-				epochEnd:   time.Unix(1606824407, 0),
-				slot:       1,
-				slotStart:  time.Unix(1606824035, 0),
-				slotEnd:    time.Unix(1606824047, 0),
+				epochStart:                    time.Unix(1606824023, 0),
+				epochEnd:                      time.Unix(1606824407, 0),
+				slot:                          1,
+				slotStart:                     time.Unix(1606824035, 0),
+				slotEnd:                       time.Unix(1606824047, 0),
+				syncCommitteePeriod:           0,
+				syncCommitteePeriodStart:      time.Unix(1606824023, 0),
+				syncCommitteePeriodEnd:        time.Unix(1606921943, 0),
+				syncCommitteePeriodEpochStart: 0,
+				syncCommitteePeriodEpochEnd:   255,
 			},
 		},
 		{
@@ -62,12 +68,17 @@ func TestProcess(t *testing.T) {
 				epoch:                    "2",
 			},
 			expected: &dataOut{
-				epoch:      2,
-				epochStart: time.Unix(1606824791, 0),
-				epochEnd:   time.Unix(1606825175, 0),
-				slot:       64,
-				slotStart:  time.Unix(1606824791, 0),
-				slotEnd:    time.Unix(1606824803, 0),
+				epoch:                         2,
+				epochStart:                    time.Unix(1606824791, 0),
+				epochEnd:                      time.Unix(1606825175, 0),
+				slot:                          64,
+				slotStart:                     time.Unix(1606824791, 0),
+				slotEnd:                       time.Unix(1606824803, 0),
+				syncCommitteePeriod:           0,
+				syncCommitteePeriodStart:      time.Unix(1606824023, 0),
+				syncCommitteePeriodEnd:        time.Unix(1606921943, 0),
+				syncCommitteePeriodEpochStart: 0,
+				syncCommitteePeriodEpochEnd:   255,
 			},
 		},
 		{
@@ -76,15 +87,20 @@ func TestProcess(t *testing.T) {
 				connection:               os.Getenv("ETHDO_TEST_CONNECTION"),
 				timeout:                  10 * time.Second,
 				allowInsecureConnections: true,
-				timestamp:                "2021-01-01T00:00:00",
+				timestamp:                "2021-01-01T00:00:00+0000",
 			},
 			expected: &dataOut{
-				epoch:      6862,
-				epochStart: time.Unix(1609459031, 0),
-				epochEnd:   time.Unix(1609459415, 0),
-				slot:       219598,
-				slotStart:  time.Unix(1609459199, 0),
-				slotEnd:    time.Unix(1609459211, 0),
+				epoch:                         6862,
+				epochStart:                    time.Unix(1609459031, 0),
+				epochEnd:                      time.Unix(1609459415, 0),
+				slot:                          219598,
+				slotStart:                     time.Unix(1609459199, 0),
+				slotEnd:                       time.Unix(1609459211, 0),
+				syncCommitteePeriod:           26,
+				syncCommitteePeriodStart:      time.Unix(1609379927, 0),
+				syncCommitteePeriodEnd:        time.Unix(1609477847, 0),
+				syncCommitteePeriodEpochStart: 6656,
+				syncCommitteePeriodEpochEnd:   6911,
 			},
 		},
 	}
@@ -96,6 +112,7 @@ func TestProcess(t *testing.T) {
 				require.EqualError(t, err, test.err)
 			} else {
 				require.NoError(t, err)
+				fmt.Printf("****** %d %d\n", res.syncCommitteePeriodStart.Unix(), res.syncCommitteePeriodEnd.Unix())
 				require.Equal(t, test.expected, res)
 			}
 		})

cmd/chain/verify/signedcontributionandproof/command.go

@@ -0,0 +1,86 @@
+// Copyright © 2021 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package chainverifysignedcontributionandproof
+
+import (
+	"context"
+	"time"
+
+	eth2client "github.com/attestantio/go-eth2-client"
+	api "github.com/attestantio/go-eth2-client/api/v1"
+	"github.com/attestantio/go-eth2-client/spec/altair"
+	"github.com/pkg/errors"
+	"github.com/spf13/viper"
+)
+
+type command struct {
+	quiet   bool
+	verbose bool
+	debug   bool
+
+	// Beacon node connection.
+	timeout                  time.Duration
+	connection               string
+	allowInsecureConnections bool
+
+	// Input.
+	data string
+	item *altair.SignedContributionAndProof
+
+	// Data access.
+	eth2Client         eth2client.Service
+	validatorsProvider eth2client.ValidatorsProvider
+
+	// Data.
+	spec          map[string]interface{}
+	validator     *api.Validator
+	syncCommittee *api.SyncCommittee
+
+	// Output.
+	itemStructureValid                       bool
+	validatorKnown                           bool
+	validatorInSyncCommittee                 bool
+	validatorIsAggregator                    bool
+	contributionSignatureValidFormat         bool
+	contributionAndProofSignatureValidFormat bool
+	contributionAndProofSignatureValid       bool
+	additionalInfo                           string
+}
+
+func newCommand(ctx context.Context) (*command, error) {
+	c := &command{
+		quiet:   viper.GetBool("quiet"),
+		verbose: viper.GetBool("verbose"),
+		debug:   viper.GetBool("debug"),
+	}
+
+	// Timeout.
+	if viper.GetDuration("timeout") == 0 {
+		return nil, errors.New("timeout is required")
+	}
+	c.timeout = viper.GetDuration("timeout")
+
+	if viper.GetString("data") == "" {
+		return nil, errors.New("data is required")
+	}
+	c.data = viper.GetString("data")
+
+	if viper.GetString("connection") == "" {
+		return nil, errors.New("connection is required")
+	}
+	c.connection = viper.GetString("connection")
+	c.allowInsecureConnections = viper.GetBool("allow-insecure-connections")
+
+	return c, nil
+}

cmd/chain/verify/signedcontributionandproof/command_internal_test.go

@@ -0,0 +1,80 @@
+// Copyright © 2021 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package chainverifysignedcontributionandproof
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestInput(t *testing.T) {
+	if os.Getenv("ETHDO_TEST_CONNECTION") == "" {
+		t.Skip("ETHDO_TEST_CONNECTION not configured; cannot run tests")
+	}
+
+	tests := []struct {
+		name string
+		vars map[string]interface{}
+		err  string
+	}{
+		{
+			name: "TimeoutMissing",
+			vars: map[string]interface{}{},
+			err:  "timeout is required",
+		},
+		{
+			name: "DataMissing",
+			vars: map[string]interface{}{
+				"timeout": "5s",
+			},
+			err: "data is required",
+		},
+		{
+			name: "ConnectionMissing",
+			vars: map[string]interface{}{
+				"timeout": "5s",
+				"data":    "{}",
+			},
+			err: "connection is required",
+		},
+		{
+			name: "Good",
+			vars: map[string]interface{}{
+				"timeout":    "5s",
+				"data":       "{}",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			viper.Reset()
+
+			for k, v := range test.vars {
+				viper.Set(k, v)
+			}
+			_, err := newCommand(context.Background())
+			if test.err != "" {
+				require.EqualError(t, err, test.err)
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}

cmd/chain/verify/signedcontributionandproof/output.go

@@ -0,0 +1,127 @@
+// Copyright © 2021 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package chainverifysignedcontributionandproof
+
+import (
+	"context"
+	"strings"
+)
+
+func (c *command) output(ctx context.Context) (string, error) {
+	if c.quiet {
+		return "", nil
+	}
+
+	builder := strings.Builder{}
+
+	builder.WriteString("Valid data structure: ")
+	if c.itemStructureValid {
+		builder.WriteString("✓\n")
+	} else {
+		builder.WriteString("✕")
+		if c.additionalInfo != "" {
+			builder.WriteString(" (")
+			builder.WriteString(c.additionalInfo)
+			builder.WriteString(")")
+		}
+		builder.WriteString("\n")
+		return builder.String(), nil
+	}
+
+	builder.WriteString("Validator known: ")
+	if c.validatorKnown {
+		builder.WriteString("✓\n")
+	} else {
+		builder.WriteString("✕")
+		if c.additionalInfo != "" {
+			builder.WriteString(" (")
+			builder.WriteString(c.additionalInfo)
+			builder.WriteString(")")
+		}
+		builder.WriteString("\n")
+		return builder.String(), nil
+	}
+
+	builder.WriteString("Validator in sync committee: ")
+	if c.validatorInSyncCommittee {
+		builder.WriteString("✓\n")
+	} else {
+		builder.WriteString("✕")
+		if c.additionalInfo != "" {
+			builder.WriteString(" (")
+			builder.WriteString(c.additionalInfo)
+			builder.WriteString(")")
+		}
+		builder.WriteString("\n")
+		return builder.String(), nil
+	}
+
+	builder.WriteString("Validator is aggregator: ")
+	if c.validatorIsAggregator {
+		builder.WriteString("✓\n")
+	} else {
+		builder.WriteString("✕")
+		if c.additionalInfo != "" {
+			builder.WriteString(" (")
+			builder.WriteString(c.additionalInfo)
+			builder.WriteString(")")
+		}
+		builder.WriteString("\n")
+		return builder.String(), nil
+	}
+
+	builder.WriteString("Contribution signature has valid format: ")
+	if c.contributionSignatureValidFormat {
+		builder.WriteString("✓\n")
+	} else {
+		builder.WriteString("✕")
+		if c.additionalInfo != "" {
+			builder.WriteString(" (")
+			builder.WriteString(c.additionalInfo)
+			builder.WriteString(")")
+		}
+		builder.WriteString("\n")
+		return builder.String(), nil
+	}
+
+	builder.WriteString("Contribution and proof signature has valid format: ")
+	if c.contributionAndProofSignatureValidFormat {
+		builder.WriteString("✓\n")
+	} else {
+		builder.WriteString("✕")
+		if c.additionalInfo != "" {
+			builder.WriteString(" (")
+			builder.WriteString(c.additionalInfo)
+			builder.WriteString(")")
+		}
+		builder.WriteString("\n")
+		return builder.String(), nil
+	}
+
+	builder.WriteString("Contribution and proof signature is valid: ")
+	if c.contributionAndProofSignatureValid {
+		builder.WriteString("✓\n")
+	} else {
+		builder.WriteString("✕")
+		if c.additionalInfo != "" {
+			builder.WriteString(" (")
+			builder.WriteString(c.additionalInfo)
+			builder.WriteString(")")
+		}
+		builder.WriteString("\n")
+		return builder.String(), nil
+	}
+
+	return builder.String(), nil
+}

cmd/chain/verify/signedcontributionandproof/process.go

@@ -0,0 +1,303 @@
+// Copyright © 2021 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package chainverifysignedcontributionandproof
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/binary"
+	"encoding/json"
+	"fmt"
+	"os"
+
+	eth2client "github.com/attestantio/go-eth2-client"
+	"github.com/attestantio/go-eth2-client/spec/altair"
+	"github.com/attestantio/go-eth2-client/spec/phase0"
+	"github.com/pkg/errors"
+	"github.com/wealdtech/ethdo/util"
+	e2types "github.com/wealdtech/go-eth2-types/v2"
+)
+
+func (c *command) process(ctx context.Context) error {
+	// Parse the data.
+	if c.data == "" {
+		return errors.New("no data supplied")
+	}
+	c.item = &altair.SignedContributionAndProof{}
+	err := json.Unmarshal([]byte(c.data), c.item)
+	if err != nil {
+		c.additionalInfo = err.Error()
+		return nil
+	}
+	c.itemStructureValid = true
+
+	// Obtain information we need to process.
+	if err := c.setup(ctx); err != nil {
+		return err
+	}
+
+	for _, validatorIndex := range c.syncCommittee.Validators {
+		if validatorIndex == c.item.Message.AggregatorIndex {
+			c.validatorInSyncCommittee = true
+			break
+		}
+	}
+	if !c.validatorInSyncCommittee {
+		return nil
+	}
+
+	// Ensure the validator is an aggregator.
+	isAggregator, err := c.isAggregator(ctx)
+	if err != nil {
+		return errors.Wrap(err, "failed to ascertain if sync committee member is aggregator")
+	}
+	if !isAggregator {
+		return nil
+	}
+	c.validatorIsAggregator = true
+
+	// Confirm the contribution signature.
+	if err := c.confirmContributionSignature(ctx); err != nil {
+		return errors.Wrap(err, "failed to confirm the contribution signature")
+	}
+
+	// Confirm the contribution and proof signature.
+	if err := c.confirmContributionAndProofSignature(ctx); err != nil {
+		return errors.Wrap(err, "failed to confirm the contribution and proof signature")
+	}
+
+	return nil
+}
+
+func (c *command) setup(ctx context.Context) error {
+	var err error
+
+	// Connect to the client.
+	c.eth2Client, err = util.ConnectToBeaconNode(ctx, c.connection, c.timeout, c.allowInsecureConnections)
+	if err != nil {
+		return errors.Wrap(err, "failed to connect to beacon node")
+	}
+
+	// Obtain the validator.
+	var isProvider bool
+	c.validatorsProvider, isProvider = c.eth2Client.(eth2client.ValidatorsProvider)
+	if !isProvider {
+		return errors.New("connection does not provide validator information")
+	}
+
+	stateID := fmt.Sprintf("%d", c.item.Message.Contribution.Slot)
+	validators, err := c.validatorsProvider.Validators(ctx,
+		stateID,
+		[]phase0.ValidatorIndex{c.item.Message.AggregatorIndex},
+	)
+	if err != nil {
+		return errors.Wrap(err, "failed to obtain validator information")
+	}
+
+	if len(validators) == 0 || validators[c.item.Message.AggregatorIndex] == nil {
+		return nil
+	}
+	c.validatorKnown = true
+	c.validator = validators[c.item.Message.AggregatorIndex]
+
+	// Obtain the sync committee
+	syncCommitteesProvider, isProvider := c.eth2Client.(eth2client.SyncCommitteesProvider)
+	if !isProvider {
+		return errors.New("connection does not provide sync committee information")
+	}
+	c.syncCommittee, err = syncCommitteesProvider.SyncCommittee(ctx, stateID)
+	if err != nil {
+		return errors.Wrap(err, "failed to obtain sync committee information")
+	}
+
+	return nil
+}
+
+// isAggregator returns true if the given
+func (c *command) isAggregator(ctx context.Context) (bool, error) {
+	// Calculate the modulo.
+	specProvider, isProvider := c.eth2Client.(eth2client.SpecProvider)
+	if !isProvider {
+		return false, errors.New("connection does not provide spec information")
+	}
+	var err error
+	c.spec, err = specProvider.Spec(ctx)
+	if err != nil {
+		return false, errors.Wrap(err, "failed to obtain spec information")
+	}
+
+	tmp, exists := c.spec["SYNC_COMMITTEE_SIZE"]
+	if !exists {
+		return false, errors.New("spec does not contain SYNC_COMMITTEE_SIZE")
+	}
+	if _, isUint64 := tmp.(uint64); !isUint64 {
+		return false, errors.New("spec returned non-integer value for SYNC_COMMITTEE_SIZE")
+	}
+	syncCommitteeSize := tmp.(uint64)
+	if c.debug {
+		fmt.Fprintf(os.Stderr, "sync committee size is %d\n", syncCommitteeSize)
+	}
+
+	tmp, exists = c.spec["SYNC_COMMITTEE_SUBNET_COUNT"]
+	if !exists {
+		return false, errors.New("spec does not contain SYNC_COMMITTEE_SUBNET_COUNT")
+	}
+	if _, isUint64 := tmp.(uint64); !isUint64 {
+		return false, errors.New("spec returned non-integer value for SYNC_COMMITTEE_SUBNET_COUNT")
+	}
+	syncCommitteeSubnetCount := tmp.(uint64)
+	if c.debug {
+		fmt.Fprintf(os.Stderr, "sync committee subnet count is %d\n", syncCommitteeSubnetCount)
+	}
+
+	tmp, exists = c.spec["TARGET_AGGREGATORS_PER_SYNC_SUBCOMMITTEE"]
+	if !exists {
+		return false, errors.New("spec does not contain TARGET_AGGREGATORS_PER_SYNC_SUBCOMMITTEE")
+	}
+	if _, isUint64 := tmp.(uint64); !isUint64 {
+		return false, errors.New("spec returned non-integer value for TARGET_AGGREGATORS_PER_SYNC_SUBCOMMITTEE")
+	}
+	targetAggregatorsPerSyncSubcommittee := tmp.(uint64)
+	if c.debug {
+		fmt.Fprintf(os.Stderr, "target aggregators per sync subcommittee is %d\n", targetAggregatorsPerSyncSubcommittee)
+	}
+
+	modulo := syncCommitteeSize / syncCommitteeSubnetCount / targetAggregatorsPerSyncSubcommittee
+	if modulo < 1 {
+		modulo = 1
+	}
+	if c.debug {
+		fmt.Fprintf(os.Stderr, "modulo is %d\n", modulo)
+	}
+
+	// Hash the selection proof.
+	sigHash := sha256.New()
+	n, err := sigHash.Write(c.item.Message.SelectionProof[:])
+	if err != nil {
+		return false, errors.Wrap(err, "failed to hash the selection proof")
+	}
+	if n != len(c.item.Signature[:]) {
+		return false, errors.New("failed to write all bytes of the selection proof to the hash")
+	}
+	hash := sigHash.Sum(nil)
+	if c.debug {
+		fmt.Fprintf(os.Stderr, "hash of selection proof is %#x\n", hash)
+	}
+
+	return binary.LittleEndian.Uint64(hash[:8])%modulo == 0, nil
+}
+
+func (c *command) confirmContributionSignature(ctx context.Context) error {
+	sigBytes := make([]byte, 96)
+	copy(sigBytes, c.item.Message.Contribution.Signature[:])
+	_, err := e2types.BLSSignatureFromBytes(sigBytes)
+	if err != nil {
+		c.additionalInfo = err.Error()
+		return nil
+	}
+	c.contributionSignatureValidFormat = true
+
+	subCommittee := c.syncCommittee.ValidatorAggregates[c.item.Message.Contribution.SubcommitteeIndex]
+	includedIndices := make([]phase0.ValidatorIndex, 0, len(subCommittee))
+	for i := uint64(0); i < c.item.Message.Contribution.AggregationBits.Len(); i++ {
+		if c.item.Message.Contribution.AggregationBits.BitAt(i) {
+			includedIndices = append(includedIndices, subCommittee[int(i)])
+		}
+	}
+	if c.debug {
+		fmt.Fprintf(os.Stderr, "Contribution validator indices: %v (%d)\n", includedIndices, len(includedIndices))
+	}
+
+	includedValidators, err := c.validatorsProvider.Validators(ctx, "head", includedIndices)
+	if err != nil {
+		return errors.Wrap(err, "failed to obtain subcommittee validators")
+	}
+	if len(includedValidators) == 0 {
+		return errors.New("obtained empty subcommittee validator list")
+	}
+
+	var aggregatePubKey *e2types.BLSPublicKey
+	for _, v := range includedValidators {
+		pubKeyBytes := make([]byte, 48)
+		copy(pubKeyBytes, v.Validator.PublicKey[:])
+		pubKey, err := e2types.BLSPublicKeyFromBytes(pubKeyBytes)
+		if err != nil {
+			return errors.Wrap(err, "failed to aggregate public key")
+		}
+		if aggregatePubKey == nil {
+			aggregatePubKey = pubKey
+		} else {
+			aggregatePubKey.Aggregate(pubKey)
+		}
+	}
+	if c.debug {
+		fmt.Fprintf(os.Stderr, "Aggregate public key is %#x\n", aggregatePubKey.Marshal())
+	}
+
+	// Don't have the ability to carry out the batch verification at current.
+
+	return nil
+}
+
+func (c *command) confirmContributionAndProofSignature(ctx context.Context) error {
+	sigBytes := make([]byte, 96)
+	copy(sigBytes, c.item.Signature[:])
+	sig, err := e2types.BLSSignatureFromBytes(sigBytes)
+	if err != nil {
+		c.additionalInfo = err.Error()
+		return nil
+	}
+	c.contributionAndProofSignatureValidFormat = true
+
+	pubKeyBytes := make([]byte, 48)
+	copy(pubKeyBytes, c.validator.Validator.PublicKey[:])
+	pubKey, err := e2types.BLSPublicKeyFromBytes(pubKeyBytes)
+	if err != nil {
+		return errors.Wrap(err, "failed to configure public key")
+	}
+
+	objectRoot, err := c.item.Message.HashTreeRoot()
+	if err != nil {
+		return errors.Wrap(err, "failed to obtain signging root")
+	}
+
+	tmp, exists := c.spec["DOMAIN_CONTRIBUTION_AND_PROOF"]
+	if !exists {
+		return errors.New("spec does not contain DOMAIN_CONTRIBUTION_AND_PROOF")
+	}
+	if _, isUint64 := tmp.(phase0.DomainType); !isUint64 {
+		return errors.New("spec returned non-domain type value for DOMAIN_CONTRIBUTION_AND_PROOF")
+	}
+	contributionAndProofDomainType := tmp.(phase0.DomainType)
+	if c.debug {
+		fmt.Fprintf(os.Stderr, "contribution and proof domain type is %#x\n", contributionAndProofDomainType)
+	}
+	domain, err := c.eth2Client.(eth2client.DomainProvider).Domain(ctx, contributionAndProofDomainType, phase0.Epoch(c.item.Message.Contribution.Slot/32))
+	if err != nil {
+		return errors.Wrap(err, "failed to obtain domain")
+	}
+
+	container := &phase0.SigningData{
+		ObjectRoot: objectRoot,
+		Domain:     domain,
+	}
+	signingRoot, err := container.HashTreeRoot()
+	if err != nil {
+		return errors.Wrap(err, "failed to obtain signging root")
+	}
+
+	c.contributionAndProofSignatureValid = sig.Verify(signingRoot[:], pubKey)
+
+	return nil
+}

cmd/chain/verify/signedcontributionandproof/process_internal_test.go

@@ -0,0 +1,62 @@
+// Copyright © 2021 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package chainverifysignedcontributionandproof
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestProcess(t *testing.T) {
+	if os.Getenv("ETHDO_TEST_CONNECTION") == "" {
+		t.Skip("ETHDO_TEST_CONNECTION not configured; cannot run tests")
+	}
+
+	tests := []struct {
+		name string
+		vars map[string]interface{}
+		err  string
+	}{
+		{
+			name: "InvalidData",
+			vars: map[string]interface{}{
+				"timeout":    "5s",
+				"data":       "[[",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			viper.Reset()
+
+			for k, v := range test.vars {
+				viper.Set(k, v)
+			}
+			cmd, err := newCommand(context.Background())
+			require.NoError(t, err)
+			err = cmd.process(context.Background())
+			if test.err != "" {
+				require.EqualError(t, err, test.err)
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}

cmd/chain/verify/signedcontributionandproof/run.go

@@ -0,0 +1,50 @@
+// Copyright © 2021 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package chainverifysignedcontributionandproof
+
+import (
+	"context"
+
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+// Run runs the command.
+func Run(cmd *cobra.Command) (string, error) {
+	ctx := context.Background()
+
+	c, err := newCommand(ctx)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to set up command")
+	}
+
+	// Further errors do not need a usage report.
+	cmd.SilenceUsage = true
+
+	if err := c.process(ctx); err != nil {
+		return "", errors.Wrap(err, "failed to process")
+	}
+
+	if viper.GetBool("quiet") {
+		return "", nil
+	}
+
+	results, err := c.output(ctx)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to obtain output")
+	}
+
+	return results, nil
+}

cmd/chaininfo.go

@@ -85,18 +85,3 @@ func init() {
 	chainCmd.AddCommand(chainInfoCmd)
 	chainFlags(chainInfoCmd)
 }
-
-func timestampToSlot(genesis time.Time, timestamp time.Time, secondsPerSlot time.Duration) spec.Slot {
-	if timestamp.Unix() < genesis.Unix() {
-		return 0
-	}
-	return spec.Slot(uint64(timestamp.Unix()-genesis.Unix()) / uint64(secondsPerSlot.Seconds()))
-}
-
-func slotToTimestamp(genesis time.Time, slot spec.Slot, slotDuration time.Duration) int64 {
-	return genesis.Unix() + int64(slot)*int64(slotDuration.Seconds())
-}
-
-func epochToTimestamp(genesis time.Time, slot spec.Slot, slotDuration time.Duration, slotsPerEpoch uint64) int64 {
-	return genesis.Unix() + int64(slot)*int64(slotDuration.Seconds())*int64(slotsPerEpoch)
-}

cmd/chainqueues.go

@@ -0,0 +1,61 @@
+// Copyright © 2022 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	chainqueues "github.com/wealdtech/ethdo/cmd/chain/queues"
+)
+
+var chainQueuesCmd = &cobra.Command{
+	Use:   "queues",
+	Short: "Show chain queues",
+	Long: `Show beacon chain activation and exit queues.  For example:
+
+    ethdo chain queues
+
+In quiet mode this will return 0 if the entry and exit queues are 0, otherwise 1.`,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		res, err := chainqueues.Run(cmd)
+		if err != nil {
+			return err
+		}
+		if viper.GetBool("quiet") {
+			return nil
+		}
+		if res != "" {
+			fmt.Println(res)
+		}
+		return nil
+	},
+}
+
+func init() {
+	chainCmd.AddCommand(chainQueuesCmd)
+	chainFlags(chainQueuesCmd)
+	chainQueuesCmd.Flags().String("epoch", "", "epoch for which to fetch the queues")
+	chainQueuesCmd.Flags().Bool("json", false, "output data in JSON format")
+}
+
+func chainQueuesBindings() {
+	if err := viper.BindPFlag("epoch", chainQueuesCmd.Flags().Lookup("epoch")); err != nil {
+		panic(err)
+	}
+	if err := viper.BindPFlag("json", chainQueuesCmd.Flags().Lookup("json")); err != nil {
+		panic(err)
+	}
+}

cmd/chainstatus.go

@@ -1,4 +1,4 @@
-// Copyright © 2020 Weald Technology Trading
+// Copyright © 2020, 2021 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -17,12 +17,13 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"strings"
 	"time"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	spec "github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
+	standardchaintime "github.com/wealdtech/ethdo/services/chaintime/standard"
 	"github.com/wealdtech/ethdo/util"
 )
 
@@ -40,53 +41,116 @@ In quiet mode this will return 0 if the chain status can be obtained, otherwise
 		eth2Client, err := util.ConnectToBeaconNode(ctx, viper.GetString("connection"), viper.GetDuration("timeout"), viper.GetBool("allow-insecure-connections"))
 		errCheck(err, "Failed to connect to Ethereum 2 beacon node")
 
-		specProvider, isProvider := eth2Client.(eth2client.SpecProvider)
-		assert(isProvider, "beacon node does not provide spec; cannot report on chain status")
-		config, err := specProvider.Spec(ctx)
-		errCheck(err, "Failed to obtain beacon chain specification")
+		chainTime, err := standardchaintime.New(ctx,
+			standardchaintime.WithGenesisTimeProvider(eth2Client.(eth2client.GenesisTimeProvider)),
+			standardchaintime.WithForkScheduleProvider(eth2Client.(eth2client.ForkScheduleProvider)),
+			standardchaintime.WithSpecProvider(eth2Client.(eth2client.SpecProvider)),
+		)
+		errCheck(err, "Failed to configure chaintime service")
 
 		finalityProvider, isProvider := eth2Client.(eth2client.FinalityProvider)
 		assert(isProvider, "beacon node does not provide finality; cannot report on chain status")
 		finality, err := finalityProvider.Finality(ctx, "head")
 		errCheck(err, "Failed to obtain finality information")
 
-		genesisProvider, isProvider := eth2Client.(eth2client.GenesisProvider)
-		assert(isProvider, "beacon node does not provide genesis; cannot report on chain status")
-		genesis, err := genesisProvider.Genesis(ctx)
-		errCheck(err, "Failed to obtain genesis information")
+		slot := chainTime.CurrentSlot()
 
-		slotDuration := config["SECONDS_PER_SLOT"].(time.Duration)
-		curSlot := timestampToSlot(genesis.GenesisTime, time.Now(), slotDuration)
-		slotsPerEpoch := config["SLOTS_PER_EPOCH"].(uint64)
-		curEpoch := spec.Epoch(uint64(curSlot) / slotsPerEpoch)
-		fmt.Printf("Current epoch: %d\n", curEpoch)
-		outputIf(verbose, fmt.Sprintf("Current slot: %d", curSlot))
-		fmt.Printf("Justified epoch: %d\n", finality.Justified.Epoch)
-		if verbose {
-			distance := curEpoch - finality.Justified.Epoch
-			fmt.Printf("Justified epoch distance: %d\n", distance)
-		}
-		fmt.Printf("Finalized epoch: %d\n", finality.Finalized.Epoch)
-		if verbose {
-			distance := curEpoch - finality.Finalized.Epoch
-			fmt.Printf("Finalized epoch distance: %d\n", distance)
-		}
-		if verbose {
-			fmt.Printf("Prior justified epoch: %d\n", finality.PreviousJustified.Epoch)
-			distance := curEpoch - finality.PreviousJustified.Epoch
-			fmt.Printf("Prior justified epoch distance: %d\n", distance)
-		}
+		nextSlot := slot + 1
+		nextSlotTimestamp := chainTime.StartOfSlot(nextSlot)
+
+		epoch := chainTime.CurrentEpoch()
+		epochStartSlot := chainTime.FirstSlotOfEpoch(epoch)
+		epochEndSlot := chainTime.FirstSlotOfEpoch(epoch+1) - 1
+
+		nextEpoch := epoch + 1
+		nextEpochStartSlot := chainTime.FirstSlotOfEpoch(nextEpoch)
+		nextEpochTimestamp := chainTime.StartOfEpoch(nextEpoch)
+
+		res := strings.Builder{}
+
+		res.WriteString("Current slot: ")
+		res.WriteString(fmt.Sprintf("%d", slot))
+		res.WriteString("\n")
+
+		res.WriteString("Current epoch: ")
+		res.WriteString(fmt.Sprintf("%d", epoch))
+		res.WriteString("\n")
 
 		if verbose {
-			epochStartSlot := (uint64(curSlot) / slotsPerEpoch) * slotsPerEpoch
-			fmt.Printf("Epoch slots: %d-%d\n", epochStartSlot, epochStartSlot+slotsPerEpoch-1)
-			nextSlotTimestamp := slotToTimestamp(genesis.GenesisTime, curSlot+1, slotDuration)
-			fmt.Printf("Time until next slot: %2.1fs\n", float64(time.Until(time.Unix(nextSlotTimestamp, 0)).Milliseconds())/1000)
-			nextEpoch := epochToTimestamp(genesis.GenesisTime, spec.Slot(uint64(curSlot)/slotsPerEpoch+1), slotDuration, slotsPerEpoch)
-			fmt.Printf("Slots until next epoch: %d\n", (uint64(curSlot)/slotsPerEpoch+1)*slotsPerEpoch-uint64(curSlot))
-			fmt.Printf("Time until next epoch: %2.1fs\n", float64(time.Until(time.Unix(nextEpoch, 0)).Milliseconds())/1000)
+			res.WriteString("Epoch slots: ")
+			res.WriteString(fmt.Sprintf("%d", epochStartSlot))
+			res.WriteString("-")
+			res.WriteString(fmt.Sprintf("%d", epochEndSlot))
+			res.WriteString("\n")
 		}
 
+		res.WriteString("Time until next slot: ")
+		res.WriteString(time.Until(nextSlotTimestamp).Round(time.Second).String())
+		res.WriteString("\n")
+
+		res.WriteString("Time until next epoch: ")
+		res.WriteString(time.Until(nextEpochTimestamp).Round(time.Second).String())
+		res.WriteString("\n")
+
+		res.WriteString("Slots until next epoch: ")
+		res.WriteString(fmt.Sprintf("%d", nextEpochStartSlot-slot))
+		res.WriteString("\n")
+
+		res.WriteString("Justified epoch: ")
+		res.WriteString(fmt.Sprintf("%d", finality.Justified.Epoch))
+		res.WriteString("\n")
+		if verbose {
+			distance := epoch - finality.Justified.Epoch
+			res.WriteString("Justified epoch distance: ")
+			res.WriteString(fmt.Sprintf("%d", distance))
+			res.WriteString("\n")
+		}
+
+		res.WriteString("Finalized epoch: ")
+		res.WriteString(fmt.Sprintf("%d", finality.Finalized.Epoch))
+		res.WriteString("\n")
+		if verbose {
+			distance := epoch - finality.Finalized.Epoch
+			res.WriteString("Finalized epoch distance: ")
+			res.WriteString(fmt.Sprintf("%d", distance))
+			res.WriteString("\n")
+		}
+
+		if epoch >= chainTime.AltairInitialEpoch() {
+			period := chainTime.SlotToSyncCommitteePeriod(slot)
+			periodStartEpoch := chainTime.FirstEpochOfSyncPeriod(period)
+			periodStartSlot := chainTime.FirstSlotOfEpoch(periodStartEpoch)
+			nextPeriod := period + 1
+			nextPeriodStartEpoch := chainTime.FirstEpochOfSyncPeriod(nextPeriod)
+			periodEndEpoch := nextPeriodStartEpoch - 1
+			periodEndSlot := chainTime.FirstSlotOfEpoch(periodEndEpoch+1) - 1
+			nextPeriodTimestamp := chainTime.StartOfEpoch(nextPeriodStartEpoch)
+
+			res.WriteString("Sync committee period: ")
+			res.WriteString(fmt.Sprintf("%d", period))
+			res.WriteString("\n")
+
+			if verbose {
+				res.WriteString("Sync committee epochs: ")
+				res.WriteString(fmt.Sprintf("%d", periodStartEpoch))
+				res.WriteString("-")
+				res.WriteString(fmt.Sprintf("%d", periodEndEpoch))
+				res.WriteString("\n")
+
+				res.WriteString("Sync committee slots: ")
+				res.WriteString(fmt.Sprintf("%d", periodStartSlot))
+				res.WriteString("-")
+				res.WriteString(fmt.Sprintf("%d", periodEndSlot))
+				res.WriteString("\n")
+
+				res.WriteString("Time until next sync committee period: ")
+				res.WriteString(time.Until(nextPeriodTimestamp).Round(time.Second).String())
+				res.WriteString("\n")
+			}
+		}
+
+		fmt.Print(res.String())
+
 		os.Exit(_exitSuccess)
 	},
 }

cmd/chainverify.go

@@ -0,0 +1,45 @@
+// Copyright © 2021 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+// chainVerifyCmd represents the chain verify command
+var chainVerifyCmd = &cobra.Command{
+	Use:   "verify",
+	Short: "Verify a beacon chain signature",
+	Long:  "Verify the signature for a given beacon chain structure is correct",
+}
+
+func init() {
+	chainCmd.AddCommand(chainVerifyCmd)
+}
+
+func chainVerifyFlags(cmd *cobra.Command) {
+	chainFlags(cmd)
+	cmd.Flags().String("validator", "", "The account, public key or index of the validator")
+	cmd.Flags().String("data", "", "The data to verify, as a JSON structure")
+}
+
+func chainVerifyBindings(cmd *cobra.Command) {
+	if err := viper.BindPFlag("validator", cmd.Flags().Lookup("validator")); err != nil {
+		panic(err)
+	}
+	if err := viper.BindPFlag("data", cmd.Flags().Lookup("data")); err != nil {
+		panic(err)
+	}
+}

cmd/chainverifysignedcontributionandproof.go

@@ -0,0 +1,50 @@
+// Copyright © 2021 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	chainverifysignedcontributionandproof "github.com/wealdtech/ethdo/cmd/chain/verify/signedcontributionandproof"
+)
+
+var chainVerifySignedContributionAndProofCmd = &cobra.Command{
+	Use:   "signedcontributionandproof",
+	Short: "Verify a signed contribution and proof",
+	Long: `Verify a signed contribution and proof.  For example:
+
+    ethdo chain verify signedcontributionandproof --data=... --validator=...
+
+validator can be an account, a public key or an index.`,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		res, err := chainverifysignedcontributionandproof.Run(cmd)
+		if err != nil {
+			return err
+		}
+		if res != "" {
+			fmt.Print(res)
+		}
+		return nil
+	},
+}
+
+func init() {
+	chainVerifyCmd.AddCommand(chainVerifySignedContributionAndProofCmd)
+	chainVerifyFlags(chainVerifySignedContributionAndProofCmd)
+}
+
+func chainVerifySignedContributionAndProofBindings(cmd *cobra.Command) {
+	chainVerifyBindings(cmd)
+}

cmd/epoch.go

@@ -0,0 +1,40 @@
+// Copyright © 2022 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+// epochCmd represents the epoch command
+var epochCmd = &cobra.Command{
+	Use:   "epoch",
+	Short: "Obtain information about Ethereum 2 epochs",
+	Long:  "Obtain information about Ethereum 2 epochs",
+}
+
+func init() {
+	RootCmd.AddCommand(epochCmd)
+}
+
+func epochFlags(cmd *cobra.Command) {
+	epochSummaryCmd.Flags().String("epoch", "", "the epoch for which to obtain information (default current, can be 'current', 'last' or a number)")
+}
+
+func epochBindings() {
+	if err := viper.BindPFlag("epoch", epochSummaryCmd.Flags().Lookup("epoch")); err != nil {
+		panic(err)
+	}
+}

cmd/epoch/summary/command.go

@@ -0,0 +1,97 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package epochsummary
+
+import (
+	"context"
+	"time"
+
+	eth2client "github.com/attestantio/go-eth2-client"
+	"github.com/attestantio/go-eth2-client/spec/phase0"
+	"github.com/pkg/errors"
+	"github.com/spf13/viper"
+	"github.com/wealdtech/ethdo/services/chaintime"
+)
+
+type command struct {
+	quiet   bool
+	verbose bool
+	debug   bool
+
+	// Beacon node connection.
+	timeout                  time.Duration
+	connection               string
+	allowInsecureConnections bool
+
+	// Operation.
+	epoch      string
+	stream     bool
+	jsonOutput bool
+
+	// Data access.
+	eth2Client             eth2client.Service
+	chainTime              chaintime.Service
+	proposerDutiesProvider eth2client.ProposerDutiesProvider
+	blocksProvider         eth2client.SignedBeaconBlockProvider
+	syncCommitteesProvider eth2client.SyncCommitteesProvider
+
+	// Results.
+	summary *epochSummary
+}
+
+type epochSummary struct {
+	Epoch         phase0.Epoch          `json:"epoch"`
+	FirstSlot     phase0.Slot           `json:"first_slot"`
+	LastSlot      phase0.Slot           `json:"last_slot"`
+	Proposals     []*epochProposal      `json:"proposals"`
+	SyncCommittee []*epochSyncCommittee `json:"sync_committees"`
+}
+
+type epochProposal struct {
+	Slot     phase0.Slot           `json:"slot"`
+	Proposer phase0.ValidatorIndex `json:"proposer"`
+	Block    bool                  `json:"block"`
+}
+
+type epochSyncCommittee struct {
+	Index  phase0.ValidatorIndex `json:"index"`
+	Missed int                   `json:"missed"`
+}
+
+func newCommand(ctx context.Context) (*command, error) {
+	c := &command{
+		quiet:   viper.GetBool("quiet"),
+		verbose: viper.GetBool("verbose"),
+		debug:   viper.GetBool("debug"),
+		summary: &epochSummary{},
+	}
+
+	// Timeout.
+	if viper.GetDuration("timeout") == 0 {
+		return nil, errors.New("timeout is required")
+	}
+	c.timeout = viper.GetDuration("timeout")
+
+	if viper.GetString("connection") == "" {
+		return nil, errors.New("connection is required")
+	}
+	c.connection = viper.GetString("connection")
+	c.allowInsecureConnections = viper.GetBool("allow-insecure-connections")
+
+	c.epoch = viper.GetString("epoch")
+	c.stream = viper.GetBool("stream")
+	c.jsonOutput = viper.GetBool("json")
+
+	return c, nil
+}

cmd/epoch/summary/command_internal_test.go

@@ -0,0 +1,71 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package epochsummary
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestInput(t *testing.T) {
+	if os.Getenv("ETHDO_TEST_CONNECTION") == "" {
+		t.Skip("ETHDO_TEST_CONNECTION not configured; cannot run tests")
+	}
+
+	tests := []struct {
+		name string
+		vars map[string]interface{}
+		err  string
+	}{
+		{
+			name: "TimeoutMissing",
+			vars: map[string]interface{}{},
+			err:  "timeout is required",
+		},
+		{
+			name: "ConnectionMissing",
+			vars: map[string]interface{}{
+				"timeout": "5s",
+			},
+			err: "connection is required",
+		},
+		{
+			name: "Good",
+			vars: map[string]interface{}{
+				"timeout":    "5s",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			viper.Reset()
+
+			for k, v := range test.vars {
+				viper.Set(k, v)
+			}
+			_, err := newCommand(context.Background())
+			if test.err != "" {
+				require.EqualError(t, err, test.err)
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}

cmd/epoch/summary/output.go

@@ -0,0 +1,107 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package epochsummary
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"strings"
+)
+
+func (c *command) output(ctx context.Context) (string, error) {
+	if c.quiet {
+		return "", nil
+	}
+
+	if c.jsonOutput {
+		return c.outputJSON(ctx)
+	}
+
+	return c.outputTxt(ctx)
+}
+
+func (c *command) outputJSON(_ context.Context) (string, error) {
+	data, err := json.Marshal(c.summary)
+	if err != nil {
+		return "", err
+	}
+	return string(data), nil
+}
+
+func (c *command) outputTxt(_ context.Context) (string, error) {
+	builder := strings.Builder{}
+
+	builder.WriteString("Epoch ")
+	builder.WriteString(fmt.Sprintf("%d:\n", c.summary.Epoch))
+
+	proposedBlocks := 0
+	if c.verbose {
+		for _, proposal := range c.summary.Proposals {
+			builder.WriteString("  Slot ")
+			builder.WriteString(fmt.Sprintf("%d (%d/%d):\n", proposal.Slot, uint64(proposal.Slot)%uint64(len(c.summary.Proposals)), len(c.summary.Proposals)))
+			builder.WriteString("    Proposer: ")
+			builder.WriteString(fmt.Sprintf("%d\n", proposal.Proposer))
+			builder.WriteString("    Proposed: ")
+			if proposal.Block {
+				proposedBlocks++
+				builder.WriteString("✓\n")
+			} else {
+				builder.WriteString("✕\n")
+			}
+		}
+	} else {
+		missedProposals := make([]string, 0, len(c.summary.Proposals))
+		for _, proposal := range c.summary.Proposals {
+			if !proposal.Block {
+				missedProposals = append(missedProposals, fmt.Sprintf("    Slot %d (validator %d)\n", proposal.Slot, proposal.Proposer))
+			} else {
+				proposedBlocks++
+			}
+		}
+		if len(missedProposals) > 0 {
+			builder.WriteString("  Missed proposals:\n")
+			for _, missedProposal := range missedProposals {
+				builder.WriteString(missedProposal)
+			}
+		}
+	}
+
+	if c.verbose {
+		for _, syncCommittee := range c.summary.SyncCommittee {
+			builder.WriteString("  Sync committee validator ")
+			builder.WriteString(fmt.Sprintf("%d:\n", syncCommittee.Index))
+			builder.WriteString("    Chances: ")
+			builder.WriteString(fmt.Sprintf("%d\n", proposedBlocks))
+			builder.WriteString("    Included: ")
+			builder.WriteString(fmt.Sprintf("%d\n", proposedBlocks-syncCommittee.Missed))
+			builder.WriteString("    Inclusion %: ")
+			builder.WriteString(fmt.Sprintf("%0.2f\n", 100.0*float64(proposedBlocks-syncCommittee.Missed)/float64(proposedBlocks)))
+		}
+	} else {
+		missedSyncCommittees := make([]string, 0, len(c.summary.SyncCommittee))
+		for _, syncCommittee := range c.summary.SyncCommittee {
+			missedPct := 100.0 * float64(syncCommittee.Missed) / float64(proposedBlocks)
+			missedSyncCommittees = append(missedSyncCommittees, fmt.Sprintf("    %d (%0.2f%%) by validator %d\n", syncCommittee.Missed, missedPct, syncCommittee.Index))
+		}
+		if len(missedSyncCommittees) > 0 {
+			builder.WriteString("  Missed sync committees (excluding missed blocks):\n")
+			for _, missedSyncCommittee := range missedSyncCommittees {
+				builder.WriteString(missedSyncCommittee)
+			}
+		}
+	}
+
+	return builder.String(), nil
+}

cmd/epoch/summary/process.go

@@ -0,0 +1,174 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package epochsummary
+
+import (
+	"context"
+	"fmt"
+
+	eth2client "github.com/attestantio/go-eth2-client"
+	"github.com/attestantio/go-eth2-client/spec"
+	"github.com/attestantio/go-eth2-client/spec/altair"
+	"github.com/attestantio/go-eth2-client/spec/phase0"
+	"github.com/pkg/errors"
+	standardchaintime "github.com/wealdtech/ethdo/services/chaintime/standard"
+	"github.com/wealdtech/ethdo/util"
+)
+
+func (c *command) process(ctx context.Context) error {
+	// Obtain information we need to process.
+	err := c.setup(ctx)
+	if err != nil {
+		return err
+	}
+
+	c.summary.Epoch, err = util.ParseEpoch(ctx, c.chainTime, c.epoch)
+	if err != nil {
+		return errors.Wrap(err, "failed to parse epoch")
+	}
+	c.summary.FirstSlot = c.chainTime.FirstSlotOfEpoch(c.summary.Epoch)
+	c.summary.LastSlot = c.chainTime.FirstSlotOfEpoch(c.summary.Epoch+1) - 1
+
+	if err := c.processProposerDuties(ctx); err != nil {
+		return err
+	}
+	if err := c.processAttesterDuties(ctx); err != nil {
+		return err
+	}
+	if err := c.processSyncCommitteeDuties(ctx); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (c *command) processProposerDuties(ctx context.Context) error {
+	duties, err := c.proposerDutiesProvider.ProposerDuties(ctx, c.summary.Epoch, nil)
+	if err != nil {
+		return errors.Wrap(err, "failed to obtain proposer duties")
+	}
+	if duties == nil {
+		return errors.New("empty proposer duties")
+	}
+	for _, duty := range duties {
+		block, err := c.blocksProvider.SignedBeaconBlock(ctx, fmt.Sprintf("%d", duty.Slot))
+		if err != nil {
+			return errors.Wrap(err, fmt.Sprintf("failed to obtain block for slot %d", duty.Slot))
+		}
+		present := block != nil
+		c.summary.Proposals = append(c.summary.Proposals, &epochProposal{
+			Slot:     duty.Slot,
+			Proposer: duty.ValidatorIndex,
+			Block:    present,
+		})
+	}
+
+	return nil
+}
+
+func (c *command) processAttesterDuties(ctx context.Context) error {
+	// Obtain all active validators for the given epoch.
+	// Do in future.
+	return nil
+}
+
+func (c *command) processSyncCommitteeDuties(ctx context.Context) error {
+	committee, err := c.syncCommitteesProvider.SyncCommittee(ctx, fmt.Sprintf("%d", c.summary.FirstSlot))
+	if err != nil {
+		return errors.Wrap(err, "failed to obtain sync committee")
+	}
+	if len(committee.Validators) == 0 {
+		return errors.New("empty sync committee")
+	}
+
+	missed := make(map[phase0.ValidatorIndex]int)
+	for _, index := range committee.Validators {
+		missed[index] = 0
+	}
+
+	for slot := c.summary.FirstSlot; slot <= c.summary.LastSlot; slot++ {
+		block, err := c.blocksProvider.SignedBeaconBlock(ctx, fmt.Sprintf("%d", slot))
+		if err != nil {
+			return errors.Wrap(err, fmt.Sprintf("failed to obtain block for slot %d", slot))
+		}
+		if block == nil {
+			// If the block is missed we don't count the sync aggregate miss.
+			continue
+		}
+		var aggregate *altair.SyncAggregate
+		switch block.Version {
+		case spec.DataVersionPhase0:
+			// No sync committees in this fork.
+			return nil
+		case spec.DataVersionAltair:
+			aggregate = block.Altair.Message.Body.SyncAggregate
+		case spec.DataVersionBellatrix:
+			aggregate = block.Bellatrix.Message.Body.SyncAggregate
+		default:
+			return fmt.Errorf("unhandled block version %v", block.Version)
+		}
+		for i := uint64(0); i < aggregate.SyncCommitteeBits.Len(); i++ {
+			if !aggregate.SyncCommitteeBits.BitAt(i) {
+				missed[committee.Validators[int(i)]]++
+			}
+		}
+	}
+
+	c.summary.SyncCommittee = make([]*epochSyncCommittee, 0, len(missed))
+	for index, count := range missed {
+		if count > 0 {
+			c.summary.SyncCommittee = append(c.summary.SyncCommittee, &epochSyncCommittee{
+				Index:  index,
+				Missed: count,
+			})
+		}
+	}
+
+	return nil
+}
+
+func (c *command) setup(ctx context.Context) error {
+	var err error
+
+	// Connect to the client.
+	c.eth2Client, err = util.ConnectToBeaconNode(ctx, c.connection, c.timeout, c.allowInsecureConnections)
+	if err != nil {
+		return errors.Wrap(err, "failed to connect to beacon node")
+	}
+
+	c.chainTime, err = standardchaintime.New(ctx,
+		standardchaintime.WithSpecProvider(c.eth2Client.(eth2client.SpecProvider)),
+		standardchaintime.WithForkScheduleProvider(c.eth2Client.(eth2client.ForkScheduleProvider)),
+		standardchaintime.WithGenesisTimeProvider(c.eth2Client.(eth2client.GenesisTimeProvider)),
+	)
+	if err != nil {
+		return errors.Wrap(err, "failed to set up chaintime service")
+	}
+
+	var isProvider bool
+	c.proposerDutiesProvider, isProvider = c.eth2Client.(eth2client.ProposerDutiesProvider)
+	if !isProvider {
+		return errors.New("connection does not provide proposer duties")
+	}
+	c.blocksProvider, isProvider = c.eth2Client.(eth2client.SignedBeaconBlockProvider)
+	if !isProvider {
+		return errors.New("connection does not provide signed beacon blocks")
+	}
+	c.syncCommitteesProvider, isProvider = c.eth2Client.(eth2client.SyncCommitteesProvider)
+	if !isProvider {
+		return errors.New("connection does not provide sync committee duties")
+	}
+
+	return nil
+}

cmd/epoch/summary/process_internal_test.go

@@ -0,0 +1,62 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package epochsummary
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestProcess(t *testing.T) {
+	if os.Getenv("ETHDO_TEST_CONNECTION") == "" {
+		t.Skip("ETHDO_TEST_CONNECTION not configured; cannot run tests")
+	}
+
+	tests := []struct {
+		name string
+		vars map[string]interface{}
+		err  string
+	}{
+		{
+			name: "InvalidData",
+			vars: map[string]interface{}{
+				"timeout":    "60s",
+				"data":       "[[",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			viper.Reset()
+
+			for k, v := range test.vars {
+				viper.Set(k, v)
+			}
+			cmd, err := newCommand(context.Background())
+			require.NoError(t, err)
+			err = cmd.process(context.Background())
+			if test.err != "" {
+				require.EqualError(t, err, test.err)
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}

cmd/epoch/summary/run.go

@@ -0,0 +1,50 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package epochsummary
+
+import (
+	"context"
+
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+// Run runs the command.
+func Run(cmd *cobra.Command) (string, error) {
+	ctx := context.Background()
+
+	c, err := newCommand(ctx)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to set up command")
+	}
+
+	// Further errors do not need a usage report.
+	cmd.SilenceUsage = true
+
+	if err := c.process(ctx); err != nil {
+		return "", errors.Wrap(err, "failed to process")
+	}
+
+	if viper.GetBool("quiet") {
+		return "", nil
+	}
+
+	results, err := c.output(ctx)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to obtain output")
+	}
+
+	return results, nil
+}

cmd/epochsummary.go

@@ -0,0 +1,58 @@
+// Copyright © 2022 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	epochsummary "github.com/wealdtech/ethdo/cmd/epoch/summary"
+)
+
+var epochSummaryCmd = &cobra.Command{
+	Use:   "summary",
+	Short: "Obtain summary information about an epoch",
+	Long: `Obtain summary information about an epoch.  For example:
+
+    ethdo epoch summary --epoch=12345
+
+In quiet mode this will return 0 if information for the epoch is found, otherwise 1.`,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		res, err := epochsummary.Run(cmd)
+		if err != nil {
+			return err
+		}
+		if viper.GetBool("quiet") {
+			return nil
+		}
+		if res != "" {
+			fmt.Println(res)
+		}
+		return nil
+	},
+}
+
+func init() {
+	epochCmd.AddCommand(epochSummaryCmd)
+	epochFlags(epochSummaryCmd)
+	epochSummaryCmd.Flags().Bool("json", false, "output data in JSON format")
+}
+
+func epochSummaryBindings() {
+	epochBindings()
+	if err := viper.BindPFlag("json", epochSummaryCmd.Flags().Lookup("json")); err != nil {
+		panic(err)
+	}
+}

cmd/node/events/input.go

@@ -52,7 +52,7 @@ func input(ctx context.Context) (*dataIn, error) {
 	var err error
 	data.eth2Client, err = util.ConnectToBeaconNode(ctx, viper.GetString("connection"), viper.GetDuration("timeout"), viper.GetBool("allow-insecure-connections"))
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to connect to Ethereum 2 beacon node")
+		return nil, err
 	}
 
 	return data, nil

cmd/node/events/input_internal_test.go

@@ -66,7 +66,7 @@ func TestInput(t *testing.T) {
 			vars: map[string]interface{}{
 				"timeout": "5s",
 			},
-			err: "failed to connect to Ethereum 2 beacon node: failed to connect to beacon node: problem with parameters: no address specified",
+			err: "failed to connect to beacon node: failed to connect to Ethereum 2 client with any known method",
 		},
 		{
 			name: "ConnectionBad",
@@ -75,7 +75,7 @@ func TestInput(t *testing.T) {
 				"connection": "localhost:1",
 				"topics":     []string{"one", "two"},
 			},
-			err: "failed to connect to Ethereum 2 beacon node: failed to connect to beacon node: failed to connect to Ethereum 2 client with any known method",
+			err: "failed to connect to beacon node: failed to connect to Ethereum 2 client with any known method",
 		},
 		{
 			name: "TopicsNil",

cmd/root.go

@@ -1,4 +1,4 @@
-// Copyright © 2019 Weald Technology Trading
+// Copyright © 2019 - 2021 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -64,8 +64,21 @@ func persistentPreRunE(cmd *cobra.Command, args []string) error {
 	quiet = viper.GetBool("quiet")
 	verbose = viper.GetBool("verbose")
 	debug = viper.GetBool("debug")
-	// Command-specific bindings.
-	switch fmt.Sprintf("%s/%s", cmd.Parent().Name(), cmd.Name()) {
+
+	includeCommandBindings(cmd)
+
+	if quiet && verbose {
+		fmt.Println("Cannot supply both quiet and verbose flags")
+	}
+	if quiet && debug {
+		fmt.Println("Cannot supply both quiet and debug flags")
+	}
+
+	return util.SetupStore()
+}
+
+func includeCommandBindings(cmd *cobra.Command) {
+	switch commandPath(cmd) {
 	case "account/create":
 		accountCreateBindings()
 	case "account/derive":
@@ -76,18 +89,30 @@ func persistentPreRunE(cmd *cobra.Command, args []string) error {
 		attesterDutiesBindings()
 	case "attester/inclusion":
 		attesterInclusionBindings()
+	case "block/analyze":
+		blockAnalyzeBindings()
 	case "block/info":
 		blockInfoBindings()
+	case "chain/queues":
+		chainQueuesBindings()
 	case "chain/time":
 		chainTimeBindings()
+	case "chain/verify/signedcontributionandproof":
+		chainVerifySignedContributionAndProofBindings(cmd)
+	case "epoch/summary":
+		epochSummaryBindings()
 	case "exit/verify":
 		exitVerifyBindings()
 	case "node/events":
 		nodeEventsBindings()
 	case "slot/time":
 		slotTimeBindings()
+	case "synccommittee/inclusion":
+		synccommitteeInclusionBindings()
 	case "synccommittee/members":
 		synccommitteeMembersBindings()
+	case "validator/credentials/get":
+		validatorCredentialsGetBindings()
 	case "validator/depositdata":
 		validatorDepositdataBindings()
 	case "validator/duties":
@@ -98,6 +123,8 @@ func persistentPreRunE(cmd *cobra.Command, args []string) error {
 		validatorInfoBindings()
 	case "validator/keycheck":
 		validatorKeycheckBindings()
+	case "validator/expectation":
+		validatorExpectationBindings()
 	case "wallet/create":
 		walletCreateBindings()
 	case "wallet/import":
@@ -107,15 +134,6 @@ func persistentPreRunE(cmd *cobra.Command, args []string) error {
 	case "wallet/sharedimport":
 		walletSharedImportBindings()
 	}
-
-	if quiet && verbose {
-		fmt.Println("Cannot supply both quiet and verbose flags")
-	}
-	if quiet && debug {
-		fmt.Println("Cannot supply both quiet and debug flags")
-	}
-
-	return util.SetupStore()
 }
 
 // Execute adds all child commands to the root command and sets flags appropriately.
@@ -197,7 +215,7 @@ func init() {
 	if err := viper.BindPFlag("debug", RootCmd.PersistentFlags().Lookup("debug")); err != nil {
 		panic(err)
 	}
-	RootCmd.PersistentFlags().String("connection", "localhost:4000", "connection to an Ethereum 2 node")
+	RootCmd.PersistentFlags().String("connection", "", "URL to an Ethereum 2 node's RET API endpoint")
 	if err := viper.BindPFlag("connection", RootCmd.PersistentFlags().Lookup("connection")); err != nil {
 		panic(err)
 	}
@@ -389,3 +407,14 @@ func remotesToEndpoints(remotes []string) ([]*dirk.Endpoint, error) {
 func relockAccount(locker e2wtypes.AccountLocker) {
 	errCheck(locker.Lock(context.Background()), "failed to re-lock account")
 }
+
+func commandPath(cmd *cobra.Command) string {
+	path := ""
+	for {
+		path = fmt.Sprintf("%s/%s", cmd.Name(), path)
+		if cmd.Parent().Name() == "ethdo" {
+			return strings.TrimRight(path, "/")
+		}
+		cmd = cmd.Parent()
+	}
+}

cmd/slot/time/input.go

@@ -54,7 +54,7 @@ func input(ctx context.Context) (*dataIn, error) {
 	var err error
 	data.eth2Client, err = util.ConnectToBeaconNode(ctx, viper.GetString("connection"), viper.GetDuration("timeout"), viper.GetBool("allow-insecure-connections"))
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to connect to Ethereum 2 beacon node")
+		return nil, err
 	}
 
 	return data, nil

cmd/slot/time/input_internal_test.go

@@ -73,7 +73,7 @@ func TestInput(t *testing.T) {
 				"timeout": "5s",
 				"slot":    "1",
 			},
-			err: "failed to connect to Ethereum 2 beacon node: failed to connect to beacon node: problem with parameters: no address specified",
+			err: "failed to connect to beacon node: failed to connect to Ethereum 2 client with any known method",
 		},
 	}
 

cmd/synccommittee/inclusion/command.go

@@ -0,0 +1,83 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package inclusion
+
+import (
+	"context"
+	"time"
+
+	eth2client "github.com/attestantio/go-eth2-client"
+	"github.com/pkg/errors"
+	"github.com/spf13/viper"
+	"github.com/wealdtech/ethdo/services/chaintime"
+)
+
+type command struct {
+	quiet   bool
+	verbose bool
+	debug   bool
+
+	// Beacon node connection.
+	timeout                  time.Duration
+	connection               string
+	allowInsecureConnections bool
+
+	// Input.
+	account string
+	pubKey  string
+	index   string
+	epoch   int64
+
+	// Data access.
+	eth2Client eth2client.Service
+	chainTime  chaintime.Service
+
+	// Output.
+	inCommittee    bool
+	committeeIndex uint64
+	inclusions     []int
+}
+
+func newCommand(ctx context.Context) (*command, error) {
+	c := &command{
+		quiet:   viper.GetBool("quiet"),
+		verbose: viper.GetBool("verbose"),
+		debug:   viper.GetBool("debug"),
+	}
+
+	// Timeout.
+	if viper.GetDuration("timeout") == 0 {
+		return nil, errors.New("timeout is required")
+	}
+	c.timeout = viper.GetDuration("timeout")
+
+	if viper.GetString("connection") == "" {
+		return nil, errors.New("connection is required")
+	}
+	c.connection = viper.GetString("connection")
+	c.allowInsecureConnections = viper.GetBool("allow-insecure-connections")
+
+	// Validator.
+	c.account = viper.GetString("account")
+	c.pubKey = viper.GetString("pubkey")
+	c.index = viper.GetString("index")
+	if c.account == "" && c.pubKey == "" && c.index == "" {
+		return nil, errors.New("account, pubkey or index required")
+	}
+
+	// Epoch.
+	c.epoch = viper.GetInt64("epoch")
+
+	return c, nil
+}

cmd/synccommittee/inclusion/command_internal_test.go

@@ -0,0 +1,82 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package inclusion
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestInput(t *testing.T) {
+	if os.Getenv("ETHDO_TEST_CONNECTION") == "" {
+		t.Skip("ETHDO_TEST_CONNECTION not configured; cannot run tests")
+	}
+
+	tests := []struct {
+		name string
+		vars map[string]interface{}
+		err  string
+	}{
+		{
+			name: "TimeoutMissing",
+			vars: map[string]interface{}{},
+			err:  "timeout is required",
+		},
+		{
+			name: "ConnectionMissing",
+			vars: map[string]interface{}{
+				"validators": "1",
+				"timeout":    "5s",
+			},
+			err: "connection is required",
+		},
+		{
+			name: "NoValidator",
+			vars: map[string]interface{}{
+				"timeout":    "5s",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+			err: "account, pubkey or index required",
+		},
+		{
+			name: "Good",
+			vars: map[string]interface{}{
+				"validators": "1",
+				"timeout":    "5s",
+				"index":      "1",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			viper.Reset()
+
+			for k, v := range test.vars {
+				viper.Set(k, v)
+			}
+			_, err := newCommand(context.Background())
+			if test.err != "" {
+				require.EqualError(t, err, test.err)
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}

cmd/synccommittee/inclusion/output.go

@@ -0,0 +1,81 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package inclusion
+
+import (
+	"context"
+	"fmt"
+	"strings"
+)
+
+func (c *command) output(ctx context.Context) (string, error) {
+	if c.quiet {
+		return "", nil
+	}
+
+	builder := strings.Builder{}
+
+	if c.verbose {
+		builder.WriteString("Epoch: ")
+		builder.WriteString(fmt.Sprintf("%d\n", c.epoch))
+	}
+
+	if !c.inCommittee {
+		builder.WriteString("Validator not in sync committee")
+	} else {
+		if c.verbose {
+			builder.WriteString("Validator sync committee index ")
+			builder.WriteString(fmt.Sprintf("%d\n", c.committeeIndex))
+		}
+
+		noBlock := 0
+		included := 0
+		missed := 0
+		for _, inclusion := range c.inclusions {
+			switch inclusion {
+			case 0:
+				noBlock++
+			case 1:
+				included++
+			case 2:
+				missed++
+			}
+		}
+		builder.WriteString("Expected: ")
+		builder.WriteString(fmt.Sprintf("%d", len(c.inclusions)))
+		builder.WriteString("\nIncluded: ")
+		builder.WriteString(fmt.Sprintf("%d", included))
+		builder.WriteString("\nMissed: ")
+		builder.WriteString(fmt.Sprintf("%d", missed))
+		builder.WriteString("\nNo block: ")
+		builder.WriteString(fmt.Sprintf("%d", noBlock))
+
+		builder.WriteString("\nPer-slot result: ")
+		for i, inclusion := range c.inclusions {
+			switch inclusion {
+			case 0:
+				builder.WriteString("-")
+			case 1:
+				builder.WriteString("✓")
+			case 2:
+				builder.WriteString("✕")
+			}
+			if i%8 == 7 && i != len(c.inclusions)-1 {
+				builder.WriteString(" ")
+			}
+		}
+	}
+
+	return builder.String(), nil
+}

cmd/synccommittee/inclusion/process.go

@@ -0,0 +1,130 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package inclusion
+
+import (
+	"context"
+	"fmt"
+
+	eth2client "github.com/attestantio/go-eth2-client"
+	"github.com/attestantio/go-eth2-client/spec"
+	"github.com/attestantio/go-eth2-client/spec/altair"
+	"github.com/attestantio/go-eth2-client/spec/phase0"
+	"github.com/pkg/errors"
+	standardchaintime "github.com/wealdtech/ethdo/services/chaintime/standard"
+	"github.com/wealdtech/ethdo/util"
+)
+
+func (c *command) process(ctx context.Context) error {
+	// Obtain information we need to process.
+	if err := c.setup(ctx); err != nil {
+		return err
+	}
+
+	firstSlot, lastSlot := c.calculateSlots(ctx)
+
+	validatorIndex, err := util.ValidatorIndex(ctx, c.eth2Client, c.account, c.pubKey, c.index)
+	if err != nil {
+		return err
+	}
+
+	syncCommittee, err := c.eth2Client.(eth2client.SyncCommitteesProvider).SyncCommitteeAtEpoch(ctx, "head", phase0.Epoch(c.epoch))
+	if err != nil {
+		return errors.Wrap(err, "failed to obtain sync committee information")
+	}
+
+	if syncCommittee == nil {
+		return errors.New("no sync committee returned")
+	}
+
+	for i := range syncCommittee.Validators {
+		if syncCommittee.Validators[i] == validatorIndex {
+			c.inCommittee = true
+			c.committeeIndex = uint64(i)
+			break
+		}
+	}
+
+	if c.inCommittee {
+		// This validator is in the sync committee.  Check blocks to see where it has been included.
+		c.inclusions = make([]int, 0)
+		if lastSlot > c.chainTime.CurrentSlot() {
+			lastSlot = c.chainTime.CurrentSlot()
+		}
+		for slot := firstSlot; slot < lastSlot; slot++ {
+			block, err := c.eth2Client.(eth2client.SignedBeaconBlockProvider).SignedBeaconBlock(ctx, fmt.Sprintf("%d", slot))
+			if err != nil {
+				return err
+			}
+			if block == nil {
+				c.inclusions = append(c.inclusions, 0)
+				continue
+			}
+			var aggregate *altair.SyncAggregate
+			switch block.Version {
+			case spec.DataVersionAltair:
+				aggregate = block.Altair.Message.Body.SyncAggregate
+				if aggregate.SyncCommitteeBits.BitAt(c.committeeIndex) {
+					c.inclusions = append(c.inclusions, 1)
+				} else {
+					c.inclusions = append(c.inclusions, 2)
+				}
+			case spec.DataVersionBellatrix:
+				aggregate = block.Bellatrix.Message.Body.SyncAggregate
+				if aggregate.SyncCommitteeBits.BitAt(c.committeeIndex) {
+					c.inclusions = append(c.inclusions, 1)
+				} else {
+					c.inclusions = append(c.inclusions, 2)
+				}
+			default:
+				return fmt.Errorf("unhandled block version %v", block.Version)
+			}
+		}
+	}
+
+	return nil
+}
+
+func (c *command) setup(ctx context.Context) error {
+	var err error
+
+	// Connect to the client.
+	c.eth2Client, err = util.ConnectToBeaconNode(ctx, c.connection, c.timeout, c.allowInsecureConnections)
+	if err != nil {
+		return err
+	}
+
+	c.chainTime, err = standardchaintime.New(ctx,
+		standardchaintime.WithSpecProvider(c.eth2Client.(eth2client.SpecProvider)),
+		standardchaintime.WithForkScheduleProvider(c.eth2Client.(eth2client.ForkScheduleProvider)),
+		standardchaintime.WithGenesisTimeProvider(c.eth2Client.(eth2client.GenesisTimeProvider)),
+	)
+	if err != nil {
+		return errors.Wrap(err, "failed to set up chaintime service")
+	}
+
+	return nil
+}
+
+func (c *command) calculateSlots(ctx context.Context) (phase0.Slot, phase0.Slot) {
+	var firstSlot phase0.Slot
+	var lastSlot phase0.Slot
+	if c.epoch == -1 {
+		c.epoch = int64(c.chainTime.CurrentEpoch()) - 1
+	}
+	firstSlot = c.chainTime.FirstSlotOfEpoch(phase0.Epoch(c.epoch))
+	lastSlot = c.chainTime.FirstSlotOfEpoch(phase0.Epoch(c.epoch) + 1)
+
+	return firstSlot, lastSlot
+}

cmd/synccommittee/inclusion/process_internal_test.go

@@ -0,0 +1,72 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package inclusion
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestProcess(t *testing.T) {
+	if os.Getenv("ETHDO_TEST_CONNECTION") == "" {
+		t.Skip("ETHDO_TEST_CONNECTION not configured; cannot run tests")
+	}
+
+	tests := []struct {
+		name string
+		vars map[string]interface{}
+		err  string
+	}{
+		{
+			name: "InvalidConnection",
+			vars: map[string]interface{}{
+				"timeout":    "5s",
+				"index":      "1",
+				"connection": "invalid",
+			},
+			err: "failed to connect to beacon node: failed to connect to Ethereum 2 client with any known method",
+		},
+		{
+			name: "Good",
+			vars: map[string]interface{}{
+				"timeout":    "5s",
+				"index":      "1",
+				"epoch":      "-1",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			viper.Reset()
+
+			for k, v := range test.vars {
+				viper.Set(k, v)
+			}
+			cmd, err := newCommand(context.Background())
+			require.NoError(t, err)
+			err = cmd.process(context.Background())
+			if test.err != "" {
+				require.EqualError(t, err, test.err)
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}

cmd/synccommittee/inclusion/run.go

@@ -0,0 +1,50 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package inclusion
+
+import (
+	"context"
+
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+// Run runs the command.
+func Run(cmd *cobra.Command) (string, error) {
+	ctx := context.Background()
+
+	c, err := newCommand(ctx)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to set up command")
+	}
+
+	// Further errors do not need a usage report.
+	cmd.SilenceUsage = true
+
+	if err := c.process(ctx); err != nil {
+		return "", errors.Wrap(err, "failed to process")
+	}
+
+	if viper.GetBool("quiet") {
+		return "", nil
+	}
+
+	results, err := c.output(ctx)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to obtain output")
+	}
+
+	return results, nil
+}

cmd/synccommittee/members/input.go

@@ -18,7 +18,6 @@ import (
 	"time"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	spec "github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
 	"github.com/spf13/viper"
 	"github.com/wealdtech/ethdo/services/chaintime"
@@ -35,7 +34,8 @@ type dataIn struct {
 	// Operation.
 	eth2Client eth2client.Service
 	chainTime  chaintime.Service
-	epoch      spec.Epoch
+	epoch      int64
+	period     string
 }
 
 func input(ctx context.Context) (*dataIn, error) {
@@ -53,7 +53,7 @@ func input(ctx context.Context) (*dataIn, error) {
 	var err error
 	data.eth2Client, err = util.ConnectToBeaconNode(ctx, viper.GetString("connection"), viper.GetDuration("timeout"), viper.GetBool("allow-insecure-connections"))
 	if err != nil {
-		return nil, errors.Wrap(err, "failed to connect to Ethereum 2 beacon node")
+		return nil, err
 	}
 
 	// Chain time.
@@ -67,12 +67,8 @@ func input(ctx context.Context) (*dataIn, error) {
 	}
 
 	// Epoch
-	epoch := viper.GetInt64("epoch")
-	if epoch == -1 {
-		data.epoch = data.chainTime.CurrentEpoch()
-	} else {
-		data.epoch = spec.Epoch(epoch)
-	}
+	data.epoch = viper.GetInt64("epoch")
+	data.period = viper.GetString("period")
 
 	return data, nil
 }

cmd/synccommittee/members/input_internal_test.go

@@ -65,7 +65,7 @@ func TestInput(t *testing.T) {
 			vars: map[string]interface{}{
 				"timeout": "5s",
 			},
-			err: "failed to connect to Ethereum 2 beacon node: failed to connect to beacon node: problem with parameters: no address specified",
+			err: "failed to connect to beacon node: failed to connect to Ethereum 2 client with any known method",
 		},
 	}
 

cmd/synccommittee/members/process.go

@@ -16,8 +16,10 @@ package members
 import (
 	"context"
 	"fmt"
+	"strings"
 
 	eth2client "github.com/attestantio/go-eth2-client"
+	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
 )
 
@@ -26,11 +28,12 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 		return nil, errors.New("no data")
 	}
 
-	if data.epoch < data.chainTime.AltairInitialEpoch() {
-		return nil, errors.New("not an Altair epoch")
+	epoch, err := calculateEpoch(ctx, data)
+	if err != nil {
+		return nil, err
 	}
 
-	syncCommittee, err := data.eth2Client.(eth2client.SyncCommitteesProvider).SyncCommittee(ctx, fmt.Sprintf("%d", data.chainTime.FirstSlotOfEpoch(data.epoch)))
+	syncCommittee, err := data.eth2Client.(eth2client.SyncCommitteesProvider).SyncCommitteeAtEpoch(ctx, "head", epoch)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to obtain sync committee information")
 	}
@@ -48,3 +51,27 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 
 	return results, nil
 }
+
+func calculateEpoch(ctx context.Context, data *dataIn) (phase0.Epoch, error) {
+	var epoch phase0.Epoch
+	if data.epoch != -1 {
+		epoch = phase0.Epoch(data.epoch)
+	} else {
+		switch strings.ToLower(data.period) {
+		case "", "current":
+			epoch = data.chainTime.CurrentEpoch()
+		case "next":
+			period := data.chainTime.SlotToSyncCommitteePeriod(data.chainTime.CurrentSlot())
+			nextPeriod := period + 1
+			epoch = data.chainTime.FirstEpochOfSyncPeriod(nextPeriod)
+		default:
+			return 0, fmt.Errorf("period %s not known", data.period)
+		}
+	}
+
+	if data.debug {
+		fmt.Printf("epoch is %d\n", epoch)
+	}
+
+	return epoch, nil
+}

cmd/synccommittee/members/process_internal_test.go

@@ -56,7 +56,7 @@ func TestProcess(t *testing.T) {
 			dataIn: &dataIn{
 				eth2Client: eth2Client,
 				chainTime:  chainTime,
-				epoch:      61650,
+				epoch:      -1,
 			},
 		},
 	}

cmd/synccommitteeinclusion.go

@@ -0,0 +1,67 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	synccommitteeinclusion "github.com/wealdtech/ethdo/cmd/synccommittee/inclusion"
+)
+
+var synccommitteeInclusionCmd = &cobra.Command{
+	Use:   "inclusion",
+	Short: "Obtain sync committee inclusion data for a validator",
+	Long: `Obtain sync committee inclusion data for a validator.  For example:
+
+    ethdo synccommittee inclusion --epoch=12345 --index=11111
+
+In quiet mode this will return 0 if the validator was in the sync committee, otherwise 1.
+
+epoch can be a specific epoch; If not supplied all slots for the current sync committee period will be provided`,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		res, err := synccommitteeinclusion.Run(cmd)
+		if err != nil {
+			return err
+		}
+		if viper.GetBool("quiet") {
+			return nil
+		}
+		if res != "" {
+			fmt.Println(res)
+		}
+		return nil
+	},
+}
+
+func init() {
+	synccommitteeCmd.AddCommand(synccommitteeInclusionCmd)
+	synccommitteeFlags(synccommitteeInclusionCmd)
+	synccommitteeInclusionCmd.Flags().Int64("epoch", -1, "the epoch for which to fetch sync committee inclusion")
+	synccommitteeInclusionCmd.Flags().String("pubkey", "", "validator public key for sync committee")
+	synccommitteeInclusionCmd.Flags().String("index", "", "validator index for sync committee")
+}
+
+func synccommitteeInclusionBindings() {
+	if err := viper.BindPFlag("epoch", synccommitteeInclusionCmd.Flags().Lookup("epoch")); err != nil {
+		panic(err)
+	}
+	if err := viper.BindPFlag("pubkey", synccommitteeInclusionCmd.Flags().Lookup("pubkey")); err != nil {
+		panic(err)
+	}
+	if err := viper.BindPFlag("index", synccommitteeInclusionCmd.Flags().Lookup("index")); err != nil {
+		panic(err)
+	}
+}

cmd/synccommitteemembers.go

@@ -28,7 +28,9 @@ var synccommitteeMembersCmd = &cobra.Command{
 
     ethdo synccommittee members --epoch=12345
 
-In quiet mode this will return 0 if the synccommittee members are found, otherwise 1.`,
+In quiet mode this will return 0 if the synccommittee members are found, otherwise 1.
+
+epoch can be a specific epoch.  period can be 'current' for the current sync period or 'next' for the next sync period`,
 	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := synccommitteemembers.Run(cmd)
 		if err != nil {
@@ -48,10 +50,14 @@ func init() {
 	synccommitteeCmd.AddCommand(synccommitteeMembersCmd)
 	synccommitteeFlags(synccommitteeMembersCmd)
 	synccommitteeMembersCmd.Flags().Int64("epoch", -1, "the epoch for which to fetch sync committees")
+	synccommitteeMembersCmd.Flags().String("period", "", "the sync committee period for which to fetch sync committees ('current', 'next')")
 }
 
 func synccommitteeMembersBindings() {
 	if err := viper.BindPFlag("epoch", synccommitteeMembersCmd.Flags().Lookup("epoch")); err != nil {
 		panic(err)
 	}
+	if err := viper.BindPFlag("period", synccommitteeMembersCmd.Flags().Lookup("period")); err != nil {
+		panic(err)
+	}
 }

cmd/validator/credentials/get/command.go

@@ -0,0 +1,89 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validatorcredentialsget
+
+import (
+	"context"
+	"time"
+
+	eth2client "github.com/attestantio/go-eth2-client"
+	apiv1 "github.com/attestantio/go-eth2-client/api/v1"
+	"github.com/pkg/errors"
+	"github.com/spf13/viper"
+)
+
+type command struct {
+	quiet   bool
+	verbose bool
+	debug   bool
+
+	// Input.
+	account string
+	index   string
+	pubKey  string
+
+	// Beacon node connection.
+	timeout                  time.Duration
+	connection               string
+	allowInsecureConnections bool
+
+	// Data access.
+	consensusClient    eth2client.Service
+	validatorsProvider eth2client.ValidatorsProvider
+
+	// Output.
+	validator *apiv1.Validator
+}
+
+func newCommand(ctx context.Context) (*command, error) {
+	c := &command{
+		quiet:   viper.GetBool("quiet"),
+		verbose: viper.GetBool("verbose"),
+		debug:   viper.GetBool("debug"),
+	}
+
+	// Timeout.
+	if viper.GetDuration("timeout") == 0 {
+		return nil, errors.New("timeout is required")
+	}
+	c.timeout = viper.GetDuration("timeout")
+
+	if viper.GetString("connection") == "" {
+		return nil, errors.New("connection is required")
+	}
+	c.connection = viper.GetString("connection")
+	c.allowInsecureConnections = viper.GetBool("allow-insecure-connections")
+
+	c.account = viper.GetString("account")
+	c.index = viper.GetString("index")
+	c.pubKey = viper.GetString("pubkey")
+	nonNil := 0
+	if c.account != "" {
+		nonNil++
+	}
+	if c.index != "" {
+		nonNil++
+	}
+	if c.pubKey != "" {
+		nonNil++
+	}
+	if nonNil == 0 {
+		return nil, errors.New("one of account, index or pubkey required")
+	}
+	if nonNil > 1 {
+		return nil, errors.New("only one of account, index and pubkey allowed")
+	}
+
+	return c, nil
+}

cmd/validator/credentials/get/command_internal_test.go

@@ -0,0 +1,91 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validatorcredentialsget
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestInput(t *testing.T) {
+	if os.Getenv("ETHDO_TEST_CONNECTION") == "" {
+		t.Skip("ETHDO_TEST_CONNECTION not configured; cannot run tests")
+	}
+
+	tests := []struct {
+		name string
+		vars map[string]interface{}
+		err  string
+	}{
+		{
+			name: "TimeoutMissing",
+			vars: map[string]interface{}{},
+			err:  "timeout is required",
+		},
+		{
+			name: "ConnectionMissing",
+			vars: map[string]interface{}{
+				"timeout": "5s",
+				"index":   "1",
+			},
+			err: "connection is required",
+		},
+		{
+			name: "NoValidatorInfo",
+			vars: map[string]interface{}{
+				"timeout":    "5s",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+			err: "one of account, index or pubkey required",
+		},
+		{
+			name: "MultipleValidatorInfo",
+			vars: map[string]interface{}{
+				"timeout":    "5s",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+				"index":      "1",
+				"pubkey":     "0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+			},
+			err: "only one of account, index and pubkey allowed",
+		},
+		{
+			name: "Good",
+			vars: map[string]interface{}{
+				"timeout":    "5s",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+				"index":      "1",
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			viper.Reset()
+
+			for k, v := range test.vars {
+				viper.Set(k, v)
+			}
+			_, err := newCommand(context.Background())
+			if test.err != "" {
+				require.EqualError(t, err, test.err)
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}

cmd/validator/credentials/get/output.go

@@ -0,0 +1,44 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validatorcredentialsget
+
+import (
+	"context"
+	"fmt"
+	"strings"
+)
+
+func (c *command) output(ctx context.Context) (string, error) {
+	if c.quiet {
+		return "", nil
+	}
+
+	builder := strings.Builder{}
+
+	switch c.validator.Validator.WithdrawalCredentials[0] {
+	case 0:
+		builder.WriteString("BLS credentials: ")
+		builder.WriteString(fmt.Sprintf("%#x", c.validator.Validator.WithdrawalCredentials))
+	case 1:
+		builder.WriteString("Ethereum execution address: ")
+		builder.WriteString(fmt.Sprintf("%#x", c.validator.Validator.WithdrawalCredentials[12:]))
+		if c.verbose {
+			builder.WriteString("\n")
+			builder.WriteString("Withdrawal credentials: ")
+			builder.WriteString(fmt.Sprintf("%#x", c.validator.Validator.WithdrawalCredentials))
+		}
+	}
+
+	return builder.String(), nil
+}

cmd/validator/credentials/get/process.go

@@ -0,0 +1,139 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validatorcredentialsget
+
+import (
+	"context"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"strconv"
+	"strings"
+
+	eth2client "github.com/attestantio/go-eth2-client"
+	"github.com/attestantio/go-eth2-client/spec/phase0"
+	"github.com/pkg/errors"
+	"github.com/wealdtech/ethdo/util"
+)
+
+func (c *command) process(ctx context.Context) error {
+	// Obtain information we need to process.
+	if err := c.setup(ctx); err != nil {
+		return err
+	}
+
+	// Work out which validator we are dealing with.
+	if err := c.fetchValidator(ctx); err != nil {
+		return err
+	}
+
+	if c.debug {
+		data, err := json.Marshal(c.validator)
+		if err == nil {
+			fmt.Println(string(data))
+		}
+	}
+
+	return nil
+}
+
+func (c *command) setup(ctx context.Context) error {
+	var err error
+
+	// Connect to the consensus node.
+	c.consensusClient, err = util.ConnectToBeaconNode(ctx, c.connection, c.timeout, c.allowInsecureConnections)
+	if err != nil {
+		return errors.Wrap(err, "failed to connect to consensus node")
+	}
+
+	// Obtain the validators provider.
+	var isProvider bool
+	c.validatorsProvider, isProvider = c.consensusClient.(eth2client.ValidatorsProvider)
+	if !isProvider {
+		return errors.New("consensu node does not provide validator information")
+	}
+
+	return nil
+}
+
+func (c *command) fetchValidator(ctx context.Context) error {
+	if c.account != "" {
+		_, account, err := util.WalletAndAccountFromInput(ctx)
+		if err != nil {
+			return errors.Wrap(err, "unable to obtain account")
+		}
+
+		accPubKey, err := util.BestPublicKey(account)
+		if err != nil {
+			return errors.Wrap(err, "unable to obtain public key for account")
+		}
+		pubKey := phase0.BLSPubKey{}
+		copy(pubKey[:], accPubKey.Marshal())
+		validators, err := c.validatorsProvider.ValidatorsByPubKey(ctx,
+			"head",
+			[]phase0.BLSPubKey{pubKey},
+		)
+		if err != nil {
+			return errors.Wrap(err, "failed to obtain validator information")
+		}
+		if len(validators) == 0 {
+			return errors.New("unknown validator")
+		}
+		for _, validator := range validators {
+			c.validator = validator
+		}
+	}
+	if c.index != "" {
+		tmp, err := strconv.ParseUint(c.index, 10, 64)
+		if err != nil {
+			return errors.Wrap(err, "invalid validator index")
+		}
+		index := phase0.ValidatorIndex(tmp)
+		validators, err := c.validatorsProvider.Validators(ctx,
+			"head",
+			[]phase0.ValidatorIndex{index},
+		)
+		if err != nil {
+			return errors.Wrap(err, "failed to obtain validator information")
+		}
+		if _, exists := validators[index]; !exists {
+			return errors.New("unknown validator")
+		}
+		c.validator = validators[index]
+	}
+	if c.pubKey != "" {
+		bytes, err := hex.DecodeString(strings.TrimPrefix(c.pubKey, "0x"))
+		if err != nil {
+			return errors.Wrap(err, "invalid validator public key")
+		}
+		pubKey := phase0.BLSPubKey{}
+		copy(pubKey[:], bytes)
+
+		validators, err := c.validatorsProvider.ValidatorsByPubKey(ctx,
+			"head",
+			[]phase0.BLSPubKey{pubKey},
+		)
+		if err != nil {
+			return errors.Wrap(err, "failed to obtain validator information")
+		}
+		if len(validators) == 0 {
+			return errors.New("unknown validator")
+		}
+		for _, validator := range validators {
+			c.validator = validator
+		}
+	}
+
+	return nil
+}

cmd/validator/credentials/get/run.go

@@ -0,0 +1,50 @@
+// Copyright © 2022 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validatorcredentialsget
+
+import (
+	"context"
+
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+// Run runs the command.
+func Run(cmd *cobra.Command) (string, error) {
+	ctx := context.Background()
+
+	c, err := newCommand(ctx)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to set up command")
+	}
+
+	// Further errors do not need a usage report.
+	cmd.SilenceUsage = true
+
+	if err := c.process(ctx); err != nil {
+		return "", errors.Wrap(err, "failed to process")
+	}
+
+	if viper.GetBool("quiet") {
+		return "", nil
+	}
+
+	results, err := c.output(ctx)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to obtain output")
+	}
+
+	return results, nil
+}

cmd/validator/depositdata/output.go

@@ -1,4 +1,4 @@
-// Copyright © 2019, 2020 Weald Technology Trading
+// Copyright © 2019 - 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -109,6 +109,8 @@ func validatorDepositDataOutputLaunchpad(datum *dataOut) (string, error) {
 	forkVersionMap := map[spec.Version]string{
 		[4]byte{0x00, 0x00, 0x00, 0x00}: "mainnet",
 		[4]byte{0x00, 0x00, 0x20, 0x09}: "pyrmont",
+		[4]byte{0x00, 0x00, 0x10, 0x20}: "prater",
+		[4]byte{0x80, 0x00, 0x00, 0x69}: "ropsten",
 	}
 
 	if datum.validatorPubKey == nil {

cmd/validator/depositdata/output_internal_test.go

@@ -253,10 +253,15 @@ func TestOutputLaunchpad(t *testing.T) {
 		tmp := testutil.HexToSignature("0xb7a757a4c506ac6ac5f2d23e065de7d00dc9f5a6a3f9610a8b60b65f166379139ae382c91ecbbf5c9fabc34b1cd2cf8f0211488d50d8754716d8e72e17c1a00b5d9b37cc73767946790ebe66cf9669abfc5c25c67e1e2d1c2e11429d149c25a2")
 		signature = &tmp
 	}
-	var forkVersion *spec.Version
+	var forkVersionPyrmont *spec.Version
 	{
 		tmp := testutil.HexToVersion("0x00002009")
-		forkVersion = &tmp
+		forkVersionPyrmont = &tmp
+	}
+	var forkVersionPrater *spec.Version
+	{
+		tmp := testutil.HexToVersion("0x00001020")
+		forkVersionPrater = &tmp
 	}
 	var depositDataRoot *spec.Root
 	{
@@ -316,7 +321,7 @@ func TestOutputLaunchpad(t *testing.T) {
 					withdrawalCredentials: testutil.HexToBytes("0x00fad2a6bfb0e7f1f0f45460944fbd8dfa7f37da06a4d13b3983cc90bb46963b"),
 					amount:                32000000000,
 					signature:             signature,
-					forkVersion:           forkVersion,
+					forkVersion:           forkVersionPyrmont,
 					depositDataRoot:       depositDataRoot,
 					depositMessageRoot:    depositMessageRoot,
 				},
@@ -332,7 +337,7 @@ func TestOutputLaunchpad(t *testing.T) {
 					validatorPubKey:    validatorPubKey,
 					amount:             32000000000,
 					signature:          signature,
-					forkVersion:        forkVersion,
+					forkVersion:        forkVersionPyrmont,
 					depositDataRoot:    depositDataRoot,
 					depositMessageRoot: depositMessageRoot,
 				},
@@ -348,7 +353,7 @@ func TestOutputLaunchpad(t *testing.T) {
 					validatorPubKey:       validatorPubKey,
 					withdrawalCredentials: testutil.HexToBytes("0x00fad2a6bfb0e7f1f0f45460944fbd8dfa7f37da06a4d13b3983cc90bb46963b"),
 					amount:                32000000000,
-					forkVersion:           forkVersion,
+					forkVersion:           forkVersionPyrmont,
 					depositDataRoot:       depositDataRoot,
 					depositMessageRoot:    depositMessageRoot,
 				},
@@ -364,7 +369,7 @@ func TestOutputLaunchpad(t *testing.T) {
 					validatorPubKey:       validatorPubKey,
 					withdrawalCredentials: testutil.HexToBytes("0x00fad2a6bfb0e7f1f0f45460944fbd8dfa7f37da06a4d13b3983cc90bb46963b"),
 					signature:             signature,
-					forkVersion:           forkVersion,
+					forkVersion:           forkVersionPyrmont,
 					depositDataRoot:       depositDataRoot,
 					depositMessageRoot:    depositMessageRoot,
 				},
@@ -381,7 +386,7 @@ func TestOutputLaunchpad(t *testing.T) {
 					withdrawalCredentials: testutil.HexToBytes("0x00fad2a6bfb0e7f1f0f45460944fbd8dfa7f37da06a4d13b3983cc90bb46963b"),
 					amount:                32000000000,
 					signature:             signature,
-					forkVersion:           forkVersion,
+					forkVersion:           forkVersionPyrmont,
 					depositMessageRoot:    depositMessageRoot,
 				},
 			},
@@ -397,14 +402,14 @@ func TestOutputLaunchpad(t *testing.T) {
 					withdrawalCredentials: testutil.HexToBytes("0x00fad2a6bfb0e7f1f0f45460944fbd8dfa7f37da06a4d13b3983cc90bb46963b"),
 					amount:                32000000000,
 					signature:             signature,
-					forkVersion:           forkVersion,
+					forkVersion:           forkVersionPyrmont,
 					depositDataRoot:       depositDataRoot,
 				},
 			},
 			err: "deposit message root required",
 		},
 		{
-			name: "Single",
+			name: "SinglePyrmont",
 			dataOut: []*dataOut{
 				{
 					format:                "launchpad",
@@ -413,13 +418,30 @@ func TestOutputLaunchpad(t *testing.T) {
 					withdrawalCredentials: testutil.HexToBytes("0x00fad2a6bfb0e7f1f0f45460944fbd8dfa7f37da06a4d13b3983cc90bb46963b"),
 					amount:                32000000000,
 					signature:             signature,
-					forkVersion:           forkVersion,
+					forkVersion:           forkVersionPyrmont,
 					depositDataRoot:       depositDataRoot,
 					depositMessageRoot:    depositMessageRoot,
 				},
 			},
 			res: `[{"pubkey":"a99a76ed7796f7be22d5b7e85deeb7c5677e88e511e0b337618f8c4eb61349b4bf2d153f649f7b53359fe8b94a38e44c","withdrawal_credentials":"00fad2a6bfb0e7f1f0f45460944fbd8dfa7f37da06a4d13b3983cc90bb46963b","amount":32000000000,"signature":"b7a757a4c506ac6ac5f2d23e065de7d00dc9f5a6a3f9610a8b60b65f166379139ae382c91ecbbf5c9fabc34b1cd2cf8f0211488d50d8754716d8e72e17c1a00b5d9b37cc73767946790ebe66cf9669abfc5c25c67e1e2d1c2e11429d149c25a2","deposit_message_root":"139b510ea7f2788ab82da1f427d6cbe1db147c15a053db738ad5500cd83754a6","deposit_data_root":"9e51b386f4271c18149dd0f73297a26a4a8c15c3622c44af79c92446f44a3554","fork_version":"00002009","eth2_network_name":"pyrmont","deposit_cli_version":"1.1.0"}]`,
 		},
+		{
+			name: "SinglePrater",
+			dataOut: []*dataOut{
+				{
+					format:                "launchpad",
+					account:               "interop/00000",
+					validatorPubKey:       validatorPubKey,
+					withdrawalCredentials: testutil.HexToBytes("0x00fad2a6bfb0e7f1f0f45460944fbd8dfa7f37da06a4d13b3983cc90bb46963b"),
+					amount:                32000000000,
+					signature:             signature,
+					forkVersion:           forkVersionPrater,
+					depositDataRoot:       depositDataRoot,
+					depositMessageRoot:    depositMessageRoot,
+				},
+			},
+			res: `[{"pubkey":"a99a76ed7796f7be22d5b7e85deeb7c5677e88e511e0b337618f8c4eb61349b4bf2d153f649f7b53359fe8b94a38e44c","withdrawal_credentials":"00fad2a6bfb0e7f1f0f45460944fbd8dfa7f37da06a4d13b3983cc90bb46963b","amount":32000000000,"signature":"b7a757a4c506ac6ac5f2d23e065de7d00dc9f5a6a3f9610a8b60b65f166379139ae382c91ecbbf5c9fabc34b1cd2cf8f0211488d50d8754716d8e72e17c1a00b5d9b37cc73767946790ebe66cf9669abfc5c25c67e1e2d1c2e11429d149c25a2","deposit_message_root":"139b510ea7f2788ab82da1f427d6cbe1db147c15a053db738ad5500cd83754a6","deposit_data_root":"9e51b386f4271c18149dd0f73297a26a4a8c15c3622c44af79c92446f44a3554","fork_version":"00001020","eth2_network_name":"prater","deposit_cli_version":"1.1.0"}]`,
+		},
 		{
 			name: "Double",
 			dataOut: []*dataOut{
@@ -430,7 +452,7 @@ func TestOutputLaunchpad(t *testing.T) {
 					withdrawalCredentials: testutil.HexToBytes("0x00fad2a6bfb0e7f1f0f45460944fbd8dfa7f37da06a4d13b3983cc90bb46963b"),
 					amount:                32000000000,
 					signature:             signature,
-					forkVersion:           forkVersion,
+					forkVersion:           forkVersionPyrmont,
 					depositDataRoot:       depositDataRoot,
 					depositMessageRoot:    depositMessageRoot,
 				},
@@ -441,7 +463,7 @@ func TestOutputLaunchpad(t *testing.T) {
 					withdrawalCredentials: testutil.HexToBytes("0x00ec7ef7780c9d151597924036262dd28dc60e1228f4da6fecf9d402cb3f3594"),
 					amount:                32000000000,
 					signature:             signature2,
-					forkVersion:           forkVersion,
+					forkVersion:           forkVersionPyrmont,
 					depositDataRoot:       depositDataRoot2,
 					depositMessageRoot:    depositMessageRoot2,
 				},

cmd/validator/duties/process.go

@@ -1,4 +1,4 @@
-// Copyright © 2019, 2020 Weald Technology Trading
+// Copyright © 2019 - 2022 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,10 +15,6 @@ package validatorduties
 
 import (
 	"context"
-	"encoding/hex"
-	"fmt"
-	"strconv"
-	"strings"
 	"time"
 
 	eth2client "github.com/attestantio/go-eth2-client"
@@ -26,7 +22,6 @@ import (
 	spec "github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
 	"github.com/wealdtech/ethdo/util"
-	e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
 )
 
 func process(ctx context.Context, data *dataIn) (*dataOut, error) {
@@ -46,7 +41,7 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 		verbose: data.verbose,
 	}
 
-	validatorIndex, err := validatorIndex(ctx, eth2Client, data)
+	validatorIndex, err := util.ValidatorIndex(ctx, eth2Client, data.account, data.pubKey, data.index)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to obtain validator index")
 	}
@@ -132,54 +127,3 @@ func currentEpoch(ctx context.Context, eth2Client eth2client.Service) (spec.Epoc
 	}
 	return spec.Epoch(uint64(time.Since(genesis.GenesisTime).Seconds()) / (uint64(slotDuration.Seconds()) * slotsPerEpoch)), nil
 }
-
-// validatorIndex obtains the index of a validator
-func validatorIndex(ctx context.Context, eth2Client eth2client.Service, data *dataIn) (spec.ValidatorIndex, error) {
-	switch {
-	case data.account != "":
-		ctx, cancel := context.WithTimeout(context.Background(), data.timeout)
-		defer cancel()
-		_, account, err := util.WalletAndAccountFromPath(ctx, data.account)
-		if err != nil {
-			return 0, errors.Wrap(err, "failed to obtain account")
-		}
-		return accountToIndex(ctx, account, eth2Client)
-	case data.pubKey != "":
-		pubKeyBytes, err := hex.DecodeString(strings.TrimPrefix(data.pubKey, "0x"))
-		if err != nil {
-			return 0, errors.Wrap(err, fmt.Sprintf("failed to decode public key %s", data.pubKey))
-		}
-		account, err := util.NewScratchAccount(nil, pubKeyBytes)
-		if err != nil {
-			return 0, errors.Wrap(err, fmt.Sprintf("invalid public key %s", data.pubKey))
-		}
-		return accountToIndex(ctx, account, eth2Client)
-	case data.index != "":
-		val, err := strconv.ParseUint(data.index, 10, 64)
-		if err != nil {
-			return 0, err
-		}
-		return spec.ValidatorIndex(val), nil
-	default:
-		return 0, errors.New("no validator")
-	}
-}
-
-func accountToIndex(ctx context.Context, account e2wtypes.Account, eth2Client eth2client.Service) (spec.ValidatorIndex, error) {
-	pubKey, err := util.BestPublicKey(account)
-	if err != nil {
-		return 0, err
-	}
-
-	pubKeys := make([]spec.BLSPubKey, 1)
-	copy(pubKeys[0][:], pubKey.Marshal())
-	validators, err := eth2Client.(eth2client.ValidatorsProvider).ValidatorsByPubKey(ctx, "head", pubKeys)
-	if err != nil {
-		return 0, err
-	}
-
-	for index := range validators {
-		return index, nil
-	}
-	return 0, errors.New("validator not found")
-}

cmd/validator/expectation/command.go

@@ -0,0 +1,73 @@
+// Copyright © 2021 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validatorexpectation
+
+import (
+	"context"
+	"time"
+
+	eth2client "github.com/attestantio/go-eth2-client"
+	"github.com/pkg/errors"
+	"github.com/spf13/viper"
+)
+
+type command struct {
+	quiet   bool
+	verbose bool
+	debug   bool
+
+	// Beacon node connection.
+	timeout                  time.Duration
+	connection               string
+	allowInsecureConnections bool
+
+	// Input.
+	validators int64
+
+	// Data access.
+	eth2Client         eth2client.Service
+	validatorsProvider eth2client.ValidatorsProvider
+	activeValidators   int
+
+	// Output.
+	timeBetweenProposals      time.Duration
+	timeBetweenSyncCommittees time.Duration
+}
+
+func newCommand(ctx context.Context) (*command, error) {
+	c := &command{
+		quiet:   viper.GetBool("quiet"),
+		verbose: viper.GetBool("verbose"),
+		debug:   viper.GetBool("debug"),
+	}
+
+	// Timeout.
+	if viper.GetDuration("timeout") == 0 {
+		return nil, errors.New("timeout is required")
+	}
+	c.timeout = viper.GetDuration("timeout")
+
+	if viper.GetString("connection") == "" {
+		return nil, errors.New("connection is required")
+	}
+	c.connection = viper.GetString("connection")
+	c.allowInsecureConnections = viper.GetBool("allow-insecure-connections")
+
+	c.validators = viper.GetInt64("validators")
+	if c.validators < 1 {
+		return nil, errors.New("validators must be at least 1")
+	}
+
+	return c, nil
+}

cmd/validator/expectation/command_internal_test.go

@@ -0,0 +1,82 @@
+// Copyright © 2021 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validatorexpectation
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestInput(t *testing.T) {
+	if os.Getenv("ETHDO_TEST_CONNECTION") == "" {
+		t.Skip("ETHDO_TEST_CONNECTION not configured; cannot run tests")
+	}
+
+	tests := []struct {
+		name string
+		vars map[string]interface{}
+		err  string
+	}{
+		{
+			name: "TimeoutMissing",
+			vars: map[string]interface{}{},
+			err:  "timeout is required",
+		},
+		{
+			name: "ConnectionMissing",
+			vars: map[string]interface{}{
+				"validators": "1",
+				"timeout":    "5s",
+			},
+			err: "connection is required",
+		},
+		{
+			name: "ValidatorsZero",
+			vars: map[string]interface{}{
+				"timeout":    "5s",
+				"validators": "0",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+			err: "validators must be at least 1",
+		},
+		{
+			name: "Good",
+			vars: map[string]interface{}{
+				"validators": "1",
+				"timeout":    "5s",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			viper.Reset()
+
+			for k, v := range test.vars {
+				viper.Set(k, v)
+			}
+			_, err := newCommand(context.Background())
+			if test.err != "" {
+				require.EqualError(t, err, test.err)
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}

cmd/validator/expectation/output.go

@@ -0,0 +1,39 @@
+// Copyright © 2021 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validatorexpectation
+
+import (
+	"context"
+	"strings"
+
+	"github.com/hako/durafmt"
+)
+
+func (c *command) output(ctx context.Context) (string, error) {
+	if c.quiet {
+		return "", nil
+	}
+
+	builder := strings.Builder{}
+
+	builder.WriteString("Expected time between block proposals: ")
+	builder.WriteString(durafmt.Parse(c.timeBetweenProposals).LimitFirstN(2).String())
+	builder.WriteString("\n")
+
+	builder.WriteString("Expected time between sync committees: ")
+	builder.WriteString(durafmt.Parse(c.timeBetweenSyncCommittees).LimitFirstN(2).String())
+	builder.WriteString("\n")
+
+	return builder.String(), nil
+}

cmd/validator/expectation/process.go

@@ -0,0 +1,161 @@
+// Copyright © 2021 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validatorexpectation
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	eth2client "github.com/attestantio/go-eth2-client"
+	"github.com/pkg/errors"
+	standardchaintime "github.com/wealdtech/ethdo/services/chaintime/standard"
+	"github.com/wealdtech/ethdo/util"
+)
+
+func (c *command) process(ctx context.Context) error {
+	// Obtain information we need to process.
+	if err := c.setup(ctx); err != nil {
+		return err
+	}
+
+	if c.debug {
+		fmt.Printf("Active validators: %d\n", c.activeValidators)
+	}
+
+	if err := c.calculateProposalChance(ctx); err != nil {
+		return err
+	}
+
+	return c.calculateSyncCommitteeChance(ctx)
+}
+
+func (c *command) calculateProposalChance(ctx context.Context) error {
+	// Chance of proposing a block is 1/activeValidators.
+	// Expectation of number of slots before proposing a block is 1/p, == activeValidators slots.
+
+	spec, err := c.eth2Client.(eth2client.SpecProvider).Spec(ctx)
+	if err != nil {
+		return err
+	}
+
+	tmp, exists := spec["SECONDS_PER_SLOT"]
+	if !exists {
+		return errors.New("spec missing SECONDS_PER_SLOT")
+	}
+	slotDuration, isType := tmp.(time.Duration)
+	if !isType {
+		return errors.New("SECONDS_PER_SLOT of incorrect type")
+	}
+
+	c.timeBetweenProposals = slotDuration * time.Duration(c.activeValidators) / time.Duration(c.validators)
+
+	return nil
+}
+
+func (c *command) calculateSyncCommitteeChance(ctx context.Context) error {
+	// Chance of being in a sync committee is SYNC_COMMITTEE_SIZE/activeValidators.
+	// Expectation of number of periods before being in a sync committee is 1/p, activeValidators/SYNC_COMMITTEE_SIZE periods.
+
+	spec, err := c.eth2Client.(eth2client.SpecProvider).Spec(ctx)
+	if err != nil {
+		return err
+	}
+
+	tmp, exists := spec["SECONDS_PER_SLOT"]
+	if !exists {
+		return errors.New("spec missing SECONDS_PER_SLOT")
+	}
+	slotDuration, isType := tmp.(time.Duration)
+	if !isType {
+		return errors.New("SECONDS_PER_SLOT of incorrect type")
+	}
+
+	tmp, exists = spec["SYNC_COMMITTEE_SIZE"]
+	if !exists {
+		return errors.New("spec missing SYNC_COMMITTEE_SIZE")
+	}
+	syncCommitteeSize, isType := tmp.(uint64)
+	if !isType {
+		return errors.New("SYNC_COMMITTEE_SIZE of incorrect type")
+	}
+
+	tmp, exists = spec["SLOTS_PER_EPOCH"]
+	if !exists {
+		return errors.New("spec missing SLOTS_PER_EPOCH")
+	}
+	slotsPerEpoch, isType := tmp.(uint64)
+	if !isType {
+		return errors.New("SLOTS_PER_EPOCH of incorrect type")
+	}
+
+	tmp, exists = spec["EPOCHS_PER_SYNC_COMMITTEE_PERIOD"]
+	if !exists {
+		return errors.New("spec missing EPOCHS_PER_SYNC_COMMITTEE_PERIOD")
+	}
+	epochsPerPeriod, isType := tmp.(uint64)
+	if !isType {
+		return errors.New("EPOCHS_PER_SYNC_COMMITTEE_PERIOD of incorrect type")
+	}
+
+	periodsBetweenSyncCommittees := uint64(c.activeValidators) / syncCommitteeSize
+	if c.debug {
+		fmt.Printf("Sync committee periods between inclusion: %d\n", periodsBetweenSyncCommittees)
+	}
+
+	c.timeBetweenSyncCommittees = slotDuration * time.Duration(slotsPerEpoch*epochsPerPeriod) * time.Duration(periodsBetweenSyncCommittees) / time.Duration(c.validators)
+
+	return nil
+}
+
+func (c *command) setup(ctx context.Context) error {
+	var err error
+
+	// Connect to the client.
+	c.eth2Client, err = util.ConnectToBeaconNode(ctx, c.connection, c.timeout, c.allowInsecureConnections)
+	if err != nil {
+		return errors.Wrap(err, "failed to connect to beacon node")
+	}
+
+	chainTime, err := standardchaintime.New(ctx,
+		standardchaintime.WithSpecProvider(c.eth2Client.(eth2client.SpecProvider)),
+		standardchaintime.WithForkScheduleProvider(c.eth2Client.(eth2client.ForkScheduleProvider)),
+		standardchaintime.WithGenesisTimeProvider(c.eth2Client.(eth2client.GenesisTimeProvider)),
+	)
+	if err != nil {
+		return errors.Wrap(err, "failed to set up chaintime service")
+	}
+
+	// Obtain the number of active validators.
+	var isProvider bool
+	c.validatorsProvider, isProvider = c.eth2Client.(eth2client.ValidatorsProvider)
+	if !isProvider {
+		return errors.New("connection does not provide validator information")
+	}
+
+	validators, err := c.validatorsProvider.Validators(ctx, "head", nil)
+	if err != nil {
+		return errors.Wrap(err, "failed to obtain validators")
+	}
+
+	currentEpoch := chainTime.CurrentEpoch()
+	for _, validator := range validators {
+		if validator.Validator.ActivationEpoch <= currentEpoch &&
+			validator.Validator.ExitEpoch > currentEpoch {
+			c.activeValidators++
+		}
+	}
+
+	return nil
+}

cmd/validator/expectation/process_internal_test.go

@@ -0,0 +1,63 @@
+// Copyright © 2021 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validatorexpectation
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestProcess(t *testing.T) {
+	if os.Getenv("ETHDO_TEST_CONNECTION") == "" {
+		t.Skip("ETHDO_TEST_CONNECTION not configured; cannot run tests")
+	}
+
+	tests := []struct {
+		name string
+		vars map[string]interface{}
+		err  string
+	}{
+		{
+			name: "InvalidData",
+			vars: map[string]interface{}{
+				"timeout":    "60s",
+				"validators": "1",
+				"data":       "[[",
+				"connection": os.Getenv("ETHDO_TEST_CONNECTION"),
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			viper.Reset()
+
+			for k, v := range test.vars {
+				viper.Set(k, v)
+			}
+			cmd, err := newCommand(context.Background())
+			require.NoError(t, err)
+			err = cmd.process(context.Background())
+			if test.err != "" {
+				require.EqualError(t, err, test.err)
+			} else {
+				require.NoError(t, err)
+			}
+		})
+	}
+}

cmd/validator/expectation/run.go

@@ -0,0 +1,50 @@
+// Copyright © 2021 Weald Technology Trading.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validatorexpectation
+
+import (
+	"context"
+
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+// Run runs the command.
+func Run(cmd *cobra.Command) (string, error) {
+	ctx := context.Background()
+
+	c, err := newCommand(ctx)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to set up command")
+	}
+
+	// Further errors do not need a usage report.
+	cmd.SilenceUsage = true
+
+	if err := c.process(ctx); err != nil {
+		return "", errors.Wrap(err, "failed to process")
+	}
+
+	if viper.GetBool("quiet") {
+		return "", nil
+	}
+
+	results, err := c.output(ctx)
+	if err != nil {
+		return "", errors.Wrap(err, "failed to obtain output")
+	}
+
+	return results, nil
+}

cmd/validatorcredentials.go

@@ -0,0 +1,32 @@
+// Copyright © 2022 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+)
+
+// validatorCredentialsCmd represents the validator credentials command
+var validatorCredentialsCmd = &cobra.Command{
+	Use:   "credentials",
+	Short: "Manage Ethereum consensu validator credentials",
+	Long:  `Manage Ethereum consensu validator credentials.`,
+}
+
+func init() {
+	validatorCmd.AddCommand(validatorCredentialsCmd)
+}
+
+func validatorCredentialsFlags(cmd *cobra.Command) {
+}

cmd/validatorcredentialsget.go

@@ -0,0 +1,65 @@
+// Copyright © 2022 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	validatorcredentialsget "github.com/wealdtech/ethdo/cmd/validator/credentials/get"
+)
+
+var validatorCredentialsGetCmd = &cobra.Command{
+	Use:   "get",
+	Short: "Obtain withdrawal credentials for an Ethereum consensus validator",
+	Long: `Obtain withdrawal credentials for an Ethereum consensus validator.  For example:
+
+    ethdo validator credentials get --account=primary/validator
+
+In quiet mode this will return 0 if the validator exists, otherwise 1.`,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		res, err := validatorcredentialsget.Run(cmd)
+		if err != nil {
+			return err
+		}
+		if viper.GetBool("quiet") {
+			return nil
+		}
+		if res != "" {
+			fmt.Println(res)
+		}
+		return nil
+	},
+}
+
+func init() {
+	validatorCredentialsCmd.AddCommand(validatorCredentialsGetCmd)
+	validatorCredentialsFlags(validatorCredentialsGetCmd)
+	validatorCredentialsGetCmd.Flags().String("account", "", "Account for which to fetch validator credentials")
+	validatorCredentialsGetCmd.Flags().String("index", "", "Validator index for which to fetch validator credentials")
+	validatorCredentialsGetCmd.Flags().String("pubkey", "", "Validator public key for which to fetch validator credentials")
+}
+
+func validatorCredentialsGetBindings() {
+	if err := viper.BindPFlag("account", validatorCredentialsGetCmd.Flags().Lookup("account")); err != nil {
+		panic(err)
+	}
+	if err := viper.BindPFlag("index", validatorCredentialsGetCmd.Flags().Lookup("index")); err != nil {
+		panic(err)
+	}
+	if err := viper.BindPFlag("pubkey", validatorCredentialsGetCmd.Flags().Lookup("pubkey")); err != nil {
+		panic(err)
+	}
+}

cmd/validatordepositdata.go

@@ -1,4 +1,4 @@
-// Copyright © 2019, 2020 Weald Technology Trading
+// Copyright © 2019 - 2022 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -55,7 +55,7 @@ func init() {
 	validatorDepositDataCmd.Flags().String("withdrawaladdress", "", "Ethereum 1 address of the account to which the validator funds will be withdrawn")
 	validatorDepositDataCmd.Flags().String("depositvalue", "", "Value of the amount to be deposited")
 	validatorDepositDataCmd.Flags().Bool("raw", false, "Print raw deposit data transaction data")
-	validatorDepositDataCmd.Flags().String("forkversion", "", "Use a hard-coded fork version (default is to fetch it from the node)")
+	validatorDepositDataCmd.Flags().String("forkversion", "", "Use a hard-coded fork version (default is to use mainnet value)")
 	validatorDepositDataCmd.Flags().Bool("launchpad", false, "Print launchpad-compatible JSON")
 }
 

cmd/validatorexpectation.go

@@ -0,0 +1,55 @@
+// Copyright © 2021 Weald Technology Trading
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	validatorexpectation "github.com/wealdtech/ethdo/cmd/validator/expectation"
+)
+
+var validatorExpectationCmd = &cobra.Command{
+	Use:   "expectation",
+	Short: "Calculate expectation for individual validators",
+	Long: `Calculate expectation for individual validators.  For example:
+
+    ethdo validator expectation`,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		res, err := validatorexpectation.Run(cmd)
+		if err != nil {
+			return err
+		}
+		if viper.GetBool("quiet") {
+			return nil
+		}
+		res = strings.TrimRight(res, "\n")
+		fmt.Println(res)
+		return nil
+	},
+}
+
+func init() {
+	validatorCmd.AddCommand(validatorExpectationCmd)
+	validatorFlags(validatorExpectationCmd)
+	validatorExpectationCmd.Flags().Int64("validators", 1, "Number of validators")
+}
+
+func validatorExpectationBindings() {
+	if err := viper.BindPFlag("validators", validatorExpectationCmd.Flags().Lookup("validators")); err != nil {
+		panic(err)
+	}
+}

cmd/validatorinfo.go

@@ -1,4 +1,4 @@
-// Copyright © 2020 Weald Technology Trading
+// Copyright © 2020, 2021 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -54,7 +54,7 @@ In quiet mode this will return 0 if the validator information can be obtained, o
 		)
 		errCheck(err, "Failed to connect to Ethereum 2 beacon node")
 
-		account, err := validatorInfoAccount()
+		account, err := validatorInfoAccount(ctx, eth2Client)
 		errCheck(err, "Failed to obtain validator account")
 
 		pubKeys := make([]spec.BLSPubKey, 1)
@@ -99,6 +99,12 @@ In quiet mode this will return 0 if the validator information can be obtained, o
 			fmt.Printf("Public key: %#x\n", validator.Validator.PublicKey)
 		}
 		fmt.Printf("Status: %v\n", validator.Status)
+		switch validator.Status {
+		case api.ValidatorStateActiveExiting, api.ValidatorStateActiveSlashed:
+			fmt.Printf("Exit epoch: %d\n", validator.Validator.ExitEpoch)
+		case api.ValidatorStateExitedUnslashed, api.ValidatorStateExitedSlashed:
+			fmt.Printf("Withdrawable epoch: %d\n", validator.Validator.WithdrawableEpoch)
+		}
 		fmt.Printf("Balance: %s\n", string2eth.GWeiToString(uint64(validator.Balance), true))
 		if validator.Status.IsActive() {
 			fmt.Printf("Effective balance: %s\n", string2eth.GWeiToString(uint64(validator.Validator.EffectiveBalance), true))
@@ -107,31 +113,12 @@ In quiet mode this will return 0 if the validator information can be obtained, o
 			fmt.Printf("Withdrawal credentials: %#x\n", validator.Validator.WithdrawalCredentials)
 		}
 
-		//		transition := time.Unix(int64(validatorInfo.TransitionTimestamp), 0)
-		//		transitionPassed := int64(validatorInfo.TransitionTimestamp) <= time.Now().Unix()
-		//		switch validatorInfo.Status {
-		//		case ethpb.ValidatorStatus_DEPOSITED:
-		//			if validatorInfo.TransitionTimestamp != 0 {
-		//				fmt.Printf("Inclusion in chain: %s\n", transition)
-		//			}
-		//		case ethpb.ValidatorStatus_PENDING:
-		//			fmt.Printf("Activation: %s\n", transition)
-		//		case ethpb.ValidatorStatus_EXITING, ethpb.ValidatorStatus_SLASHING:
-		//			fmt.Printf("Attesting finishes: %s\n", transition)
-		//		case ethpb.ValidatorStatus_EXITED:
-		//			if transitionPassed {
-		//				fmt.Printf("Funds withdrawable: Now\n")
-		//			} else {
-		//				fmt.Printf("Funds withdrawable: %s\n", transition)
-		//			}
-		//		}
-
 		os.Exit(_exitSuccess)
 	},
 }
 
 // validatorInfoAccount obtains the account for the validator info command.
-func validatorInfoAccount() (e2wtypes.Account, error) {
+func validatorInfoAccount(ctx context.Context, eth2Client eth2client.Service) (e2wtypes.Account, error) {
 	var account e2wtypes.Account
 	var err error
 	switch {
@@ -151,6 +138,27 @@ func validatorInfoAccount() (e2wtypes.Account, error) {
 		if err != nil {
 			return nil, errors.Wrap(err, fmt.Sprintf("invalid public key %s", viper.GetString("pubkey")))
 		}
+	case viper.GetInt64("index") != -1:
+		validatorsProvider, isValidatorsProvider := eth2Client.(eth2client.ValidatorsProvider)
+		if !isValidatorsProvider {
+			return nil, errors.New("client does not provide validator information")
+		}
+		index := spec.ValidatorIndex(viper.GetInt64("index"))
+		validators, err := validatorsProvider.Validators(ctx, "head", []spec.ValidatorIndex{
+			index,
+		})
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to obtain validator information")
+		}
+		if len(validators) == 0 {
+			return nil, errors.New("unknown validator index")
+		}
+		pubKeyBytes := make([]byte, 48)
+		copy(pubKeyBytes, validators[index].Validator.PublicKey[:])
+		account, err = util.NewScratchAccount(nil, pubKeyBytes)
+		if err != nil {
+			return nil, errors.Wrap(err, fmt.Sprintf("invalid public key %s", viper.GetString("pubkey")))
+		}
 	default:
 		return nil, errors.New("neither account nor public key supplied")
 	}
@@ -212,6 +220,7 @@ func graphData(network string, validatorPubKey []byte) (uint64, spec.Gwei, error
 func init() {
 	validatorCmd.AddCommand(validatorInfoCmd)
 	validatorInfoCmd.Flags().String("pubkey", "", "Public key for which to obtain status")
+	validatorInfoCmd.Flags().Int64("index", -1, "Index for which to obtain status")
 	validatorFlags(validatorInfoCmd)
 }
 
@@ -219,4 +228,7 @@ func validatorInfoBindings() {
 	if err := viper.BindPFlag("pubkey", validatorInfoCmd.Flags().Lookup("pubkey")); err != nil {
 		panic(err)
 	}
+	if err := viper.BindPFlag("index", validatorInfoCmd.Flags().Lookup("index")); err != nil {
+		panic(err)
+	}
 }

cmd/version.go

@@ -1,4 +1,4 @@
-// Copyright © 2019 - 2021 Weald Technology Trading
+// Copyright © 2019 - 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -24,7 +24,7 @@ import (
 
 // ReleaseVersion is the release version of the codebase.
 // Usually overridden by tag names when building binaries.
-var ReleaseVersion = "local build (latest release 1.12.0)"
+var ReleaseVersion = "local build (latest release 1.22.0)"
 
 // versionCmd represents the version command
 var versionCmd = &cobra.Command{

cmd/wallet/sharedimport/input_internal_test.go

@@ -35,11 +35,11 @@ import (
 func TestInput(t *testing.T) {
 	require.NoError(t, e2types.InitBLS())
 
-	dir := os.TempDir()
-	datFile := filepath.Join(dir, "backup.dat")
-	err := ioutil.WriteFile(datFile, []byte("dummy"), 0600)
+	dir, err := os.MkdirTemp("", "")
 	require.NoError(t, err)
-	// defer os.RemoveAll(dir)
+	datFile := filepath.Join(dir, "backup.dat")
+	require.NoError(t, ioutil.WriteFile(datFile, []byte("dummy"), 0600))
+	defer os.RemoveAll(dir)
 
 	store := scratch.New()
 	require.NoError(t, e2wallet.UseStore(store))

cmd/wallet/sharedimport/process_internal_test.go

@@ -37,10 +37,10 @@ func TestProcess(t *testing.T) {
 		"ed2166659f7b5412a169ec83627386bc6ff1a31e67735d405b2bf7cb122ad7ced35c87e42c8e8f7ba90b5899a94be506687a9c5b353af2a216018d9f1bf61745a5",
 	}
 
-	dir := os.TempDir()
-	datFile := filepath.Join(dir, "backup.dat")
-	err := ioutil.WriteFile(datFile, export, 0600)
+	dir, err := os.MkdirTemp("", "")
 	require.NoError(t, err)
+	datFile := filepath.Join(dir, "backup.dat")
+	require.NoError(t, ioutil.WriteFile(datFile, export, 0600))
 	defer os.RemoveAll(dir)
 
 	tests := []struct {

docs/usage.md

@@ -174,6 +174,13 @@ Public key: 0x99b1f1d84d76185466d86c34bde1101316afddae76217aa86cd066979b19858c2c
 $ ethdo account import --account=Validators/123 --key=6dd12d588d1c05ba40e80880ac7e894aa20babdbf16da52eae26b3f267d68032 --passphrase="my account secret"
 ```
 
+You can also import from an existing keystore such as those generated by the deposit CLI.  For this you need the keystore and the keystore passphrase.  For example:
+
+```sh
+$ ethdo account import --account=Validators/123 --keystore=/path/to/keystore.json --keystore-passphrase="the keystore secret" --passphrase="my account secret"
+```
+`--keystore` can either be the path to the keystore file, or the contents of the keystore file.
+
 #### `info`
 
 `ethdo account info` provides information about the given account.  Options include:
@@ -266,13 +273,35 @@ $ ethdo version
 ### `block` commands
 
 Block commands focus on providing information about Ethereum 2 blocks.
+#### `analyze`
+`ethdo block info` obtains information about a block in Ethereum 2.  Options include:
+  - `blockid`: the ID (slot, root, 'head') of the block to obtain
+
+```sh
+$ ethdo block analyze --blockid=80
+Value for block 80: 488.531
+```
+
+Additional information is supplied when using `--verbose`
+
+```
+$ ethdo block analyze --blockid=80 --verbose
+Attestation 0: distance 1, 119/119/132 new/total/possible votes, score 0.844, value 100.406
+Attestation 1: distance 1, 116/116/131 new/total/possible votes, score 0.844, value 97.875
+Attestation 2: distance 1, 115/115/131 new/total/possible votes, score 0.844, value 97.031
+Attestation 3: distance 1, 114/114/132 new/total/possible votes, score 0.844, value 96.188
+Attestation 4: distance 1, 113/113/132 new/total/possible votes, score 0.844, value 95.344
+Attestation 5: distance 1, 2/22/132 new/total/possible votes, score 0.844, value 1.688
+Value for block 80: 488.531
+```
+
 #### `info`
 
 `ethdo block info` obtains information about a block in Ethereum 2.  Options include:
-  - `slot`: the slot at which to attempt to fetch the block
+  - `blockid`: the ID (slot, root, 'head') of the block to obtain
 
 ```sh
-$ ethdo block info --slot=80 
+$ ethdo block info --blockid=80
 Attestations: 1
 Attester slashings: 0
 Deposits: 0
@@ -327,6 +356,17 @@ Seconds per slot:	12
 Slots per epoch:	32
 ```
 
+#### `queues`
+
+`ethdo chain queues` obtains the activation and exit queue lengths of an Ethereum chain from the node's point of view.  Options include:
+  - `epoch` show the queue length at a given epoch
+  - `json` provide JSON output
+
+```sh
+$ ethdo chain queues
+Activation queue: 14798
+```
+
 #### `status`
 
 `ethdo chain status` obtains the status of an Ethereum 2 chain from the node's point of view.  Options include:
@@ -385,6 +425,37 @@ Deposit commands focus on information about deposit data information in a JSON f
 $ ethdo deposit verify --data=${HOME}/depositdata.json --withdrawalpubkey=0xad1868210a0cff7aff22633c003c503d4c199c8dcca13bba5b3232fc784d39d3855936e94ce184c3ce27bf15d4347695 --validatorpubkey=0xa951530887ae2494a8cc4f11cf186963b0051ac4f7942375585b9cf98324db1e532a67e521d0fcaab510edad1352394c --depositvalue=32Ether
 ```
 
+### `epoch` comands
+
+Epoch commands focus on information about a beacon chain epoch.
+
+#### `summary`
+
+`ethdo epoch summary` provides a summary of the given epoch.  Options include:
+  - `epoch`: the epoch for which to provide a summary; defaults to last complete epoch
+  - `json`: provide JSON output
+
+```sh
+$ ethdo epoch summary
+Epoch 1406:
+  Slot 44992 (0/32):
+    Proposer: 31501
+    Proposed: ✓
+  Slot 44993 (1/32):
+    Proposer: 9302
+    Proposed: ✓
+  ...
+  Sync committee validator 71248:
+    Chances: 29
+    Included: 7
+    Inclusion %: 24.14
+  Sync committee validator 87371:
+    Chances: 29
+    Included: 0
+    Inclusion %: 0.00
+  ...
+```
+
 ### `exit` comands
 
 Exit commands focus on information about validator exits generated by the `ethdo validator exit` command.
@@ -451,18 +522,64 @@ $ ethdo slot time --slot=5
 2020-12-01 12:01:23 +0000 GMT
 ```
 
+### `synccommittee` commands
+
+Sync committee commands focus on information about sync committees.
+
+#### `inclusion`
+
+`ethdo synccommittee inclusion` provides information about the inclusion, or not, of a validator's sync committee messages.  Options include:
+  - `account` the account of the validator for which to print sync committee contributions
+  - `index` the index of the validator for which to print sync committee contributions
+  - `pubkey` the public key of the validator for which to print sync committee contributions
+  - `epoch` the specific epoch for which to print sync committee contributions.  Defaults to the last complete epoch
+
+
+```sh
+$ ethdo synccommittee inclusion --index=274946 --epoch=91592
+Epoch: 91593
+Expected: 32
+Included: 30
+Missed: 1
+No block: 1
+Per-slot result: ✓✓✓✓✓✓✓✓ ✓✓✕✓✓✓✓✓ ✓✓✓✓-✓✓✓ ✓✓✓✓✓✓✓✓
+```
+
+#### `members`
+
+`ethdo synccommittee members` provides information about the members of a sync committee.  Options include:
+  - `epoch` the specific epoch for which to provide sync committee members.
+  - `period` the period for which to provide sync committee members.  Can be 'current' or 'next'; dfeaults to 'current'
+
+```sh
+$ ethdo synccommittee members
+138334,116317,231736,65706,60046,148162,274946,34724,18051,122841,269578,121110,89733,154887,202118,243459,267543,82793,59504,238929,55360,272874,93917,83116,264342,244312,264907,79193,15443,27997,127175,140965,64416,66399,173906,268885,67779,48139,215005,191435,107954,225228,148630,169357,61091,223319,40668,184307,95903,81179,237461,41723,119710,243333,248243,42757,228686,252749,17546,231625,132030,15934,108465,104302,93026,191946,63738,80996,90679,227542,75463,64581,242030,5429,61623,157314,145363,224733,232492,45357,80674,198583,221422,48665,154803,128608,172512,261074,102835,129935,255726,40846,218932,139874,194575,17346,171565,76413,237859,103170,95661,83018,73902,246680,35795,257792,23836,136624,45745,190990,124229,37281,23818,233435,253903,37502,8669,31151,267179,27954,181019,145719,112270,1899,184844,175014,121769,41717,218760,44813,255860,64865,31985,231664,134296,88114,185542,27557,1698,62470,79182,184325,80380,8865,218456,178979,243886,9466,221389,131476,160857,62916,195389,160182,99293,100263,242371,144594,227527,275978,65714,74350,60121,46642,219334,157142,99379,203508,84367,251808,276456,92563,199831,215312,193875,129690,104234,44290,227725,194780,163061,162328,176517,278620,137355,212826,131615,125734,151873,18977,147927,272759,160537,210675,180411,24203,37266,247527,128678,270287,90352,23043,169645,5304,183412,237387,79751,37635,275139,95857,185990,235565,49425,255836,254314,77582,104172,168556,143653,64173,64504,130363,216602,218107,181130,191845,56454,2040,270365,161952,222409,45097,51611,219190,154903,162311,257460,106337,110775,42928,275709,202352,54724,272295,274470,35220,19694,10347,169585,104938,35121,212982,190582,77999,110201,141519,239881,81263,84314,148883,254649,256309,270013,254179,134009,149660,177127,201926,30533,164789,154343,57437,28958,135169,186415,218514,171355,165247,213526,100044,184264,93278,269329,159634,4092,224671,217236,123946,80703,85444,247742,17959,146473,128231,167559,133899,181532,33378,79060,119785,249443,180469,43692,169679,154421,114047,87877,28337,59072,19807,204598,220293,99461,55272,227923,4503,12580,27044,68955,157373,61321,265034,106833,31534,69137,264783,129588,70433,88338,113528,226211,123003,118982,131549,60350,78896,165715,119736,52639,93274,164295,278837,186453,69910,36768,249533,106205,184057,253232,88155,121377,242589,148236,250065,191526,277249,157463,226527,93000,64784,176880,176380,144301,52061,169803,134291,96648,211716,223000,157911,256737,100938,50434,41075,114894,259888,116872,218201,83617,76348,256832,17113,50270,96468,128448,36987,127511,42397,10154,49234,193346,126352,57719,17029,213127,157942,187829,2353,62462,73637,29053,120324,108515,254684,35982,188131,217092,256206,85802,105907,21204,147562,188961,154541,131147,16000,225112,58362,170375,42239,188309,60280,125472,220119,268946,65736,274053,223569,60454,239552,4401,139357,279634,162711,112016,90295,170641,239770,212067,213770,78311,49057,256295,28666,167207,166783,213148,30689,72118,55912,197733,205116,106169,40570,225057,122079,126423,217781,212897,147499,201774,10616,157826,155954,258431,212151,255318,97138,151907,181491,40236,272993,104430,178068,56089,10067,185066,93669,124108,12785,230215,67995,196282,248285,215370,167715,186183,238147,164161,15068,127990,166146,244578,195912,199812,248435,135597,143024,225304,27045,238140,87008,272550,165234,218128,160038,17697,25332,23446,265921,201045,241106
+```
+
 ### `validator` commands
 
 Validator commands focus on interaction with Ethereum 2 validators.
 
+#### `credentials get`
+
+`ethdo validator credentials get` provides information about the withdrawal credentials for the provided validator.  Options include:
+  - `account` the account for which to obtain the withdrawal credentials (in format "wallet/account")
+  - `pubkey` the public key of the validator for which to obtain the withdrawal credentials
+  - `index` the index of the validator for which to obtain the withdrawal credentials
+
+```sh
+$ ethdo validator credentials get --account=Validators/1
+```
+
 #### `depositdata`
 
 `ethdo validator depositdata` generates the data required to deposit one or more Ethereum 2 validators.  Options include:
   - `withdrawalaccount` specify the account to be used for the withdrawal credentials (if withdrawalpubkey is not supplied)
+  - `withdrawaladdress` specify the Ethereum execution address to be used for the withdrawal credentials (if withdrawalpubkey is not supplied)
   - `withdrawalpubkey` specify the public key to be used for the withdrawal credentials (if withdrawalaccount is not supplied)
   - `validatoraccount` specify the account to be used for the validator
   - `depositvalue` specify the amount of the deposit
-  - `forkversion` specify the fork version for the deposit signature; this should not be included unless the deposit is being generated offline.  Note that supplying an incorrect value could result in the loss of your deposit, so only supply this value if you are sure you know what you are doing
+  - `forkversion` specify the fork version for the deposit signature; this defaults to mainnet.  Note that supplying an incorrect value could result in the loss of your deposit, so only supply this value if you are sure you know what you are doing.  You can find the value for other chains by fetching the value supplied in "Genesis fork version" of the `ethdo chain info` command
   - `raw` generate raw hex output that can be supplied as the data to an Ethereum 1 deposit transaction
 
 #### `exit`
@@ -527,6 +644,16 @@ $ ethdo validator keycheck --withdrawal-credentials=0x007e28dcf9029e8d92ca4b5d01
 Withdrawal credentials confirmed at path m/12381/3600/10/0
 ```
 
+#### `expectation`
+
+`ethdo validator expectation` calculates the times between expected actions.
+
+```sh
+$ ethdo validator expectation
+Expected time between block proposals: 4 weeks 6 days
+Expected time between sync committees: 1 year 27 weeks
+```
+
 ### `attester` commands
 
 Attester commands focus on Ethereum 2 validators' actions as attesters.

go.mod

@@ -4,43 +4,48 @@ go 1.16
 
 require (
 	github.com/OneOfOne/xxhash v1.2.5 // indirect
-	github.com/attestantio/dirk v1.0.3
-	github.com/attestantio/go-eth2-client v0.7.2
-	github.com/ferranbt/fastssz v0.0.0-20210905181407-59cf6761a7d5
-	github.com/gofrs/uuid v4.0.0+incompatible
+	github.com/attestantio/dirk v1.1.0
+	github.com/attestantio/go-eth2-client v0.11.0
+	github.com/aws/aws-sdk-go v1.42.44 // indirect
+	github.com/ferranbt/fastssz v0.0.0-20220103083642-bc5fefefa28b
+	github.com/gofrs/uuid v4.2.0+incompatible
 	github.com/google/uuid v1.3.0
+	github.com/hako/durafmt v0.0.0-20210608085754-5c1018a4e16b
 	github.com/hashicorp/hcl v1.0.1-vault-3 // indirect
-	github.com/herumi/bls-eth-go-binary v0.0.0-20210902234237-7763804ee078
+	github.com/herumi/bls-eth-go-binary v0.0.0-20220103074059-01b0ca9e9ef7
+	github.com/jackc/puddle v1.2.1 // indirect
 	github.com/minio/highwayhash v1.0.2 // indirect
 	github.com/mitchellh/go-homedir v1.1.0
-	github.com/mitchellh/mapstructure v1.4.2 // indirect
 	github.com/nbutton23/zxcvbn-go v0.0.0-20210217022336-fa2cb2858354
 	github.com/pkg/errors v0.9.1
 	github.com/protolambda/zssz v0.1.5 // indirect
-	github.com/prysmaticlabs/ethereumapis v0.0.0-20210201130911-92b2a467c108 // indirect
 	github.com/prysmaticlabs/go-bitfield v0.0.0-20210809151128-385d8c5e3fb7
 	github.com/prysmaticlabs/go-ssz v0.0.0-20210121151755-f6208871c388
-	github.com/rs/zerolog v1.23.0
-	github.com/spf13/cobra v1.2.1
+	github.com/rs/zerolog v1.26.1
+	github.com/spf13/afero v1.8.0 // indirect
+	github.com/spf13/cobra v1.3.0
 	github.com/spf13/pflag v1.0.5
-	github.com/spf13/viper v1.8.1
+	github.com/spf13/viper v1.10.1
 	github.com/stretchr/testify v1.7.0
 	github.com/tyler-smith/go-bip39 v1.1.0
 	github.com/wealdtech/go-bytesutil v1.1.1
 	github.com/wealdtech/go-ecodec v1.1.2
-	github.com/wealdtech/go-eth2-types/v2 v2.5.6
-	github.com/wealdtech/go-eth2-util v1.6.5
-	github.com/wealdtech/go-eth2-wallet v1.14.6
-	github.com/wealdtech/go-eth2-wallet-dirk v1.1.7
+	github.com/wealdtech/go-eth2-types/v2 v2.6.0
+	github.com/wealdtech/go-eth2-util v1.7.0
+	github.com/wealdtech/go-eth2-wallet v1.15.0
+	github.com/wealdtech/go-eth2-wallet-dirk v1.2.0
 	github.com/wealdtech/go-eth2-wallet-distributed v1.1.4
-	github.com/wealdtech/go-eth2-wallet-encryptor-keystorev4 v1.1.6
-	github.com/wealdtech/go-eth2-wallet-hd/v2 v2.5.5
-	github.com/wealdtech/go-eth2-wallet-nd/v2 v2.3.4
-	github.com/wealdtech/go-eth2-wallet-store-filesystem v1.16.15
-	github.com/wealdtech/go-eth2-wallet-store-s3 v1.9.5
-	github.com/wealdtech/go-eth2-wallet-store-scratch v1.6.3
-	github.com/wealdtech/go-eth2-wallet-types/v2 v2.8.5
+	github.com/wealdtech/go-eth2-wallet-encryptor-keystorev4 v1.2.0
+	github.com/wealdtech/go-eth2-wallet-hd/v2 v2.6.0
+	github.com/wealdtech/go-eth2-wallet-nd/v2 v2.4.0
+	github.com/wealdtech/go-eth2-wallet-store-filesystem v1.17.0
+	github.com/wealdtech/go-eth2-wallet-store-s3 v1.10.0
+	github.com/wealdtech/go-eth2-wallet-store-scratch v1.7.0
+	github.com/wealdtech/go-eth2-wallet-types/v2 v2.9.0
 	github.com/wealdtech/go-string2eth v1.1.0
+	golang.org/x/crypto v0.0.0-20220128200615-198e4374d7ed // indirect
 	golang.org/x/text v0.3.7
-	google.golang.org/grpc v1.40.0
+	google.golang.org/genproto v0.0.0-20220126215142-9970aeb2e350 // indirect
+	google.golang.org/grpc v1.44.0
+	gopkg.in/ini.v1 v1.66.3 // indirect
 )

go.sum

@@ -3,6 +3,7 @@ cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMT
 cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
 cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
 cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.44.3/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
 cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
 cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
 cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
@@ -15,6 +16,7 @@ cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOY
 cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
 cloud.google.com/go v0.72.0/go.mod h1:M+5Vjvlc2wnp6tjzE102Dw08nGShTscUx2nZMufOKPI=
 cloud.google.com/go v0.74.0/go.mod h1:VV1xSbzvo+9QJOxLDaJfTjx5e+MePCpCWwvftOeQmWk=
+cloud.google.com/go v0.75.0/go.mod h1:VGuuCn7PG0dwsd5XPVm2Mm3wlh3EL55/79EKB6hlPTY=
 cloud.google.com/go v0.78.0/go.mod h1:QjdrLG0uq+YwhjoVOLsS1t7TW8fs36kLs4XO5R5ECHg=
 cloud.google.com/go v0.79.0/go.mod h1:3bzgcEeQlzbuEAYu4mrWhKqWjmpprinYgKJLgKHnbb8=
 cloud.google.com/go v0.81.0/go.mod h1:mk/AM35KwGk/Nm2YSeZbxXdrNK3KZOYHmLkOqC2V6E0=
@@ -22,8 +24,11 @@ cloud.google.com/go v0.83.0/go.mod h1:Z7MJUsANfY0pYPdw0lbnivPx4/vhy/e2FEkSkF7vAV
 cloud.google.com/go v0.84.0/go.mod h1:RazrYuxIK6Kb7YrzzhPoLmCVzl7Sup4NrbKPg8KHSUM=
 cloud.google.com/go v0.87.0/go.mod h1:TpDYlFy7vuLzZMMZ+B6iRiELaY7z/gJPaqbMx6mlWcY=
 cloud.google.com/go v0.90.0/go.mod h1:kRX0mNRHe0e2rC6oNakvwQqzyDmg57xJ+SZU1eT2aDQ=
-cloud.google.com/go v0.92.3/go.mod h1:8utlLll2EF5XMAV15woO4lSbWQlk8rer9aLOfLh7+YI=
 cloud.google.com/go v0.93.3/go.mod h1:8utlLll2EF5XMAV15woO4lSbWQlk8rer9aLOfLh7+YI=
+cloud.google.com/go v0.94.1/go.mod h1:qAlAugsXlC+JWO+Bke5vCtc9ONxjQT3drlTTnAplMW4=
+cloud.google.com/go v0.97.0/go.mod h1:GF7l59pYBVlXQIBLx3a761cZ41F9bBH3JUlihCt2Udc=
+cloud.google.com/go v0.98.0/go.mod h1:ua6Ush4NALrHk5QXDWnjvZHN93OuF0HfuEPq9I1X0cM=
+cloud.google.com/go v0.99.0/go.mod h1:w0Xx2nLzqWJPuozYQX+hFfCSI8WioryfRDzkoI/Y2ZA=
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
 cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
 cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
@@ -32,20 +37,23 @@ cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4g
 cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
 cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
-cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
+cloud.google.com/go/firestore v1.6.0/go.mod h1:afJwI0vaXwAG54kI7A//lP/lSPDkQORQuMkv56TxEPU=
+cloud.google.com/go/firestore v1.6.1/go.mod h1:asNXNOzBdyVQmEU+ggO8UPodTkEVFW5Qx+rwHnAz+EY=
 cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
 cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
 cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
 cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU=
-cloud.google.com/go/secretmanager v0.1.0/go.mod h1:3nGKHvnzDUVit7U0S9KAKJ4aOsO1xtwRG+7ey5LK1bM=
+cloud.google.com/go/secretmanager v1.0.0/go.mod h1:+Qkm5qxIJ5mk74xxIXA+87fseaY1JLYBcFPQoc/GQxg=
 cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
 cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
 cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
 cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
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@@ -467,13 +537,14 @@ github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5Cc
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@@ -519,9 +595,13 @@ github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
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@@ -544,11 +624,17 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
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 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190820162420-60c769a6c586/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
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@@ -588,11 +674,11 @@ golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
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@@ -604,6 +690,7 @@ golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLL
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190628185345-da137c7871d7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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 golang.org/x/net v0.0.0-20191002035440-2ec189313ef0/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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@@ -617,7 +704,6 @@ golang.org/x/net v0.0.0-20200501053045-e0ff5e5a1de5/go.mod h1:qpuaurCH72eLCgpAm/
 golang.org/x/net v0.0.0-20200506145744-7e3656a0809f/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200513185701-a91f0712d120/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
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 golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
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@@ -625,6 +711,7 @@ golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwY
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@@ -634,8 +721,15 @@ golang.org/x/net v0.0.0-20210503060351-7fd8e65b6420/go.mod h1:9nx3DQGgdP8bBQD5qx
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@@ -647,11 +741,12 @@ golang.org/x/oauth2 v0.0.0-20201208152858-08078c50e5b5/go.mod h1:KelEdhl1UZF7XfJ
 golang.org/x/oauth2 v0.0.0-20210218202405-ba52d332ba99/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
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@@ -662,6 +757,7 @@ golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJ
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@@ -671,6 +767,7 @@ golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5h
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@@ -680,14 +777,18 @@ golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7w
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 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200212091648-12a6c2dcc1e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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@@ -709,12 +810,15 @@ golang.org/x/sys v0.0.0-20210104204734-6f8348627aad/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210220050731-9a76102bfb43/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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@@ -723,9 +827,28 @@ golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -748,7 +871,6 @@ golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
-golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190506145303-2d16b83fe98c/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
@@ -757,9 +879,9 @@ golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgw
 golang.org/x/tools v0.0.0-20190628153133-6cdbf07be9d0/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20190816200558-6889da9d5479/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
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 golang.org/x/tools v0.0.0-20190911174233-4f2ddba30aff/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
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-golang.org/x/tools v0.0.0-20191112195655-aa38f8e97acc/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
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@@ -792,12 +914,14 @@ golang.org/x/tools v0.0.0-20201201161351-ac6f37ff4c2a/go.mod h1:emZCQorbCU4vsT4f
 golang.org/x/tools v0.0.0-20201208233053-a543418bbed2/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
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 golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
 golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
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 golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
+golang.org/x/tools v0.1.7/go.mod h1:LGqMHiF4EqQNHR1JncWGqT5BVaXmza+X+BDGol+dOxo=
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@@ -828,12 +952,19 @@ google.golang.org/api v0.36.0/go.mod h1:+z5ficQTmoYpPn8LCUNVpK5I7hwkpjbcgqA7I34q
 google.golang.org/api v0.40.0/go.mod h1:fYKFpnQN0DsDSKRVRcQSDQNtqWPfM9i+zNPxepjRCQ8=
 google.golang.org/api v0.41.0/go.mod h1:RkxM5lITDfTzmyKFPt+wGrCJbVfniCr2ool8kTBzRTU=
 google.golang.org/api v0.43.0/go.mod h1:nQsDGjRXMo4lvh5hP0TKqF244gqhGcr/YSIykhUk/94=
-google.golang.org/api v0.44.0/go.mod h1:EBOGZqzyhtvMDoxwS97ctnh0zUmYY6CxqXsc1AvkYD8=
 google.golang.org/api v0.47.0/go.mod h1:Wbvgpq1HddcWVtzsVLyfLp8lDg6AA241LmgIL59tHXo=
 google.golang.org/api v0.48.0/go.mod h1:71Pr1vy+TAZRPkPs/xlCf5SsU8WjuAWv1Pfjbtukyy4=
 google.golang.org/api v0.50.0/go.mod h1:4bNT5pAuq5ji4SRZm+5QIkjny9JAyVD/3gaSihNefaw=
 google.golang.org/api v0.51.0/go.mod h1:t4HdrdoNgyN5cbEfm7Lum0lcLDLiise1F8qDKX00sOU=
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+google.golang.org/api v0.55.0/go.mod h1:38yMfeP1kfjsl8isn0tliTjIb1rJXcQi4UXlbqivdVE=
+google.golang.org/api v0.56.0/go.mod h1:38yMfeP1kfjsl8isn0tliTjIb1rJXcQi4UXlbqivdVE=
+google.golang.org/api v0.57.0/go.mod h1:dVPlbZyBo2/OjBpmvNdpn2GRm6rPy75jyU7bmhdrMgI=
+google.golang.org/api v0.59.0/go.mod h1:sT2boj7M9YJxZzgeZqXogmhfmRWDtPzT31xkieUbuZU=
+google.golang.org/api v0.60.0/go.mod h1:d7rl65NZAkEQ90JFzqBjcRq1TVeG5ZoGV3sSpEnnVb4=
+google.golang.org/api v0.61.0/go.mod h1:xQRti5UdCmoCEqFxcz93fTl338AVqDgyaDRuOZ3hg9I=
+google.golang.org/api v0.62.0/go.mod h1:dKmwPCydfsad4qCH08MSdgWjfHOyfpd4VtDGgRFdavw=
+google.golang.org/api v0.63.0/go.mod h1:gs4ij2ffTRXwuzzgJl/56BdwJaA194ijkfn++9tDuPo=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -880,7 +1011,9 @@ google.golang.org/genproto v0.0.0-20201109203340-2640f1f9cdfb/go.mod h1:FWY/as6D
 google.golang.org/genproto v0.0.0-20201201144952-b05cb90ed32e/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20201210142538-e3217bee35cc/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20201214200347-8c77b98c765d/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
+google.golang.org/genproto v0.0.0-20210108203827-ffc7fda8c3d7/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20210222152913-aa3ee6e6a81c/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
+google.golang.org/genproto v0.0.0-20210226172003-ab064af71705/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20210303154014-9728d6b83eeb/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20210310155132-4ce2db91004e/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20210319143718-93e7006c17a6/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
@@ -896,8 +1029,26 @@ google.golang.org/genproto v0.0.0-20210716133855-ce7ef5c701ea/go.mod h1:AxrInvYm
 google.golang.org/genproto v0.0.0-20210728212813-7823e685a01f/go.mod h1:ob2IJxKrgPT52GcgX759i1sleT07tiKowYBGbczaW48=
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@@ -923,8 +1074,13 @@ google.golang.org/grpc v1.37.1/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQ
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@@ -949,8 +1105,10 @@ gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8
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