diff --git a/solidity_deposit_contract/.gitattributes b/solidity_deposit_contract/.gitattributes
new file mode 100644
index 000000000..52031de51
--- /dev/null
+++ b/solidity_deposit_contract/.gitattributes
@@ -0,0 +1 @@
+*.sol linguist-language=Solidity
diff --git a/solidity_deposit_contract/.gitmodules b/solidity_deposit_contract/.gitmodules
new file mode 100644
index 000000000..e12471968
--- /dev/null
+++ b/solidity_deposit_contract/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "lib/ds-test"]
+	path = lib/ds-test
+	url = https://github.com/dapphub/ds-test
diff --git a/solidity_deposit_contract/AUTHORS b/solidity_deposit_contract/AUTHORS
new file mode 100644
index 000000000..4d06c4c57
--- /dev/null
+++ b/solidity_deposit_contract/AUTHORS
@@ -0,0 +1,28 @@
+The contract logic here is based on the deposit contract written in Vyper.
+
+The original repository (https://github.com/ethereum/deposit_contract) had the following authors:
+
+@NIC619
+@carver
+@hwwhww
+@davesque
+@ralexstokes
+@ChihChengLiang
+@nisdas
+@djrtwo
+@JustinDrake
+@vbuterin
+@njgheorghita
+@CarlBeek
+
+In eth2.0-specs repository (https://github.com/ethereum/eth2.0-specs), its current location, it had the following additional authors:
+
+@daejunpark
+
+And this repository has the following authors:
+
+@axic
+@MrChico
+@chriseth
+
+(All of the above are GitHub usernames in order of they appeared first in the commit history.)
diff --git a/solidity_deposit_contract/LICENSE b/solidity_deposit_contract/LICENSE
new file mode 100644
index 000000000..670154e35
--- /dev/null
+++ b/solidity_deposit_contract/LICENSE
@@ -0,0 +1,116 @@
+CC0 1.0 Universal
+
+Statement of Purpose
+
+The laws of most jurisdictions throughout the world automatically confer
+exclusive Copyright and Related Rights (defined below) upon the creator and
+subsequent owner(s) (each and all, an "owner") of an original work of
+authorship and/or a database (each, a "Work").
+
+Certain owners wish to permanently relinquish those rights to a Work for the
+purpose of contributing to a commons of creative, cultural and scientific
+works ("Commons") that the public can reliably and without fear of later
+claims of infringement build upon, modify, incorporate in other works, reuse
+and redistribute as freely as possible in any form whatsoever and for any
+purposes, including without limitation commercial purposes. These owners may
+contribute to the Commons to promote the ideal of a free culture and the
+further production of creative, cultural and scientific works, or to gain
+reputation or greater distribution for their Work in part through the use and
+efforts of others.
+
+For these and/or other purposes and motivations, and without any expectation
+of additional consideration or compensation, the person associating CC0 with a
+Work (the "Affirmer"), to the extent that he or she is an owner of Copyright
+and Related Rights in the Work, voluntarily elects to apply CC0 to the Work
+and publicly distribute the Work under its terms, with knowledge of his or her
+Copyright and Related Rights in the Work and the meaning and intended legal
+effect of CC0 on those rights.
+
+1. Copyright and Related Rights. A Work made available under CC0 may be
+protected by copyright and related or neighboring rights ("Copyright and
+Related Rights"). Copyright and Related Rights include, but are not limited
+to, the following:
+
+  i. the right to reproduce, adapt, distribute, perform, display, communicate,
+  and translate a Work;
+
+  ii. moral rights retained by the original author(s) and/or performer(s);
+
+  iii. publicity and privacy rights pertaining to a person's image or likeness
+  depicted in a Work;
+
+  iv. rights protecting against unfair competition in regards to a Work,
+  subject to the limitations in paragraph 4(a), below;
+
+  v. rights protecting the extraction, dissemination, use and reuse of data in
+  a Work;
+
+  vi. database rights (such as those arising under Directive 96/9/EC of the
+  European Parliament and of the Council of 11 March 1996 on the legal
+  protection of databases, and under any national implementation thereof,
+  including any amended or successor version of such directive); and
+
+  vii. other similar, equivalent or corresponding rights throughout the world
+  based on applicable law or treaty, and any national implementations thereof.
+
+2. Waiver. To the greatest extent permitted by, but not in contravention of,
+applicable law, Affirmer hereby overtly, fully, permanently, irrevocably and
+unconditionally waives, abandons, and surrenders all of Affirmer's Copyright
+and Related Rights and associated claims and causes of action, whether now
+known or unknown (including existing as well as future claims and causes of
+action), in the Work (i) in all territories worldwide, (ii) for the maximum
+duration provided by applicable law or treaty (including future time
+extensions), (iii) in any current or future medium and for any number of
+copies, and (iv) for any purpose whatsoever, including without limitation
+commercial, advertising or promotional purposes (the "Waiver"). Affirmer makes
+the Waiver for the benefit of each member of the public at large and to the
+detriment of Affirmer's heirs and successors, fully intending that such Waiver
+shall not be subject to revocation, rescission, cancellation, termination, or
+any other legal or equitable action to disrupt the quiet enjoyment of the Work
+by the public as contemplated by Affirmer's express Statement of Purpose.
+
+3. Public License Fallback. Should any part of the Waiver for any reason be
+judged legally invalid or ineffective under applicable law, then the Waiver
+shall be preserved to the maximum extent permitted taking into account
+Affirmer's express Statement of Purpose. In addition, to the extent the Waiver
+is so judged Affirmer hereby grants to each affected person a royalty-free,
+non transferable, non sublicensable, non exclusive, irrevocable and
+unconditional license to exercise Affirmer's Copyright and Related Rights in
+the Work (i) in all territories worldwide, (ii) for the maximum duration
+provided by applicable law or treaty (including future time extensions), (iii)
+in any current or future medium and for any number of copies, and (iv) for any
+purpose whatsoever, including without limitation commercial, advertising or
+promotional purposes (the "License"). The License shall be deemed effective as
+of the date CC0 was applied by Affirmer to the Work. Should any part of the
+License for any reason be judged legally invalid or ineffective under
+applicable law, such partial invalidity or ineffectiveness shall not
+invalidate the remainder of the License, and in such case Affirmer hereby
+affirms that he or she will not (i) exercise any of his or her remaining
+Copyright and Related Rights in the Work or (ii) assert any associated claims
+and causes of action with respect to the Work, in either case contrary to
+Affirmer's express Statement of Purpose.
+
+4. Limitations and Disclaimers.
+
+  a. No trademark or patent rights held by Affirmer are waived, abandoned,
+  surrendered, licensed or otherwise affected by this document.
+
+  b. Affirmer offers the Work as-is and makes no representations or warranties
+  of any kind concerning the Work, express, implied, statutory or otherwise,
+  including without limitation warranties of title, merchantability, fitness
+  for a particular purpose, non infringement, or the absence of latent or
+  other defects, accuracy, or the present or absence of errors, whether or not
+  discoverable, all to the greatest extent permissible under applicable law.
+
+  c. Affirmer disclaims responsibility for clearing rights of other persons
+  that may apply to the Work or any use thereof, including without limitation
+  any person's Copyright and Related Rights in the Work. Further, Affirmer
+  disclaims responsibility for obtaining any necessary consents, permissions
+  or other rights required for any use of the Work.
+
+  d. Affirmer understands and acknowledges that Creative Commons is not a
+  party to this document and has no duty or obligation with respect to this
+  CC0 or use of the Work.
+
+For more information, please see
+<http://creativecommons.org/publicdomain/zero/1.0/>
diff --git a/solidity_deposit_contract/Makefile b/solidity_deposit_contract/Makefile
new file mode 100644
index 000000000..55d672105
--- /dev/null
+++ b/solidity_deposit_contract/Makefile
@@ -0,0 +1,22 @@
+all: compile
+
+clean:
+	@rm -rf build
+	@rm -f deposit_contract.json
+
+# Note: using /bin/echo for macOS support
+compile: clean
+	@git submodule update --recursive --init
+	@solc --metadata-literal --optimize --optimize-runs 5000000 --bin --abi --combined-json=abi,bin,bin-runtime,srcmap,srcmap-runtime,ast,metadata,storage-layout --overwrite -o build deposit_contract.sol tests/deposit_contract.t.sol
+	@/bin/echo -n '{"abi": ' > deposit_contract.json
+	@cat build/DepositContract.abi >> deposit_contract.json
+	@/bin/echo -n ', "bytecode": "0x' >> deposit_contract.json
+	@cat build/DepositContract.bin >> deposit_contract.json
+	@/bin/echo -n '"}' >> deposit_contract.json
+
+export DAPP_SKIP_BUILD:=1
+export DAPP_SRC:=.
+export DAPP_JSON:=build/combined.json
+
+test:
+	dapp test -v --fuzz-runs 5
diff --git a/solidity_deposit_contract/README.md b/solidity_deposit_contract/README.md
new file mode 100644
index 000000000..d5a71191e
--- /dev/null
+++ b/solidity_deposit_contract/README.md
@@ -0,0 +1,26 @@
+# eth2-deposit-contract
+
+This is a port of the [Vyper Eth 2.0 deposit contract](https://github.com/ethereum/eth2.0-specs/blob/dev/deposit_contract/contracts/validator_registration.vy) to Solidity.
+
+The original motivation was to run the SMTChecker and the new Yul IR generator option (`--ir`) in the compiler.
+
+As of June 2020, this contract (the version tagged as `r1`) has been verified and is considered for adoption.
+See this [blog post](https://blog.ethereum.org/2020/06/23/eth2-quick-update-no-12/) for more information.
+
+## Using this with the tests
+
+1. Create the `deposit_contract.json` by running `make` (this requires `solc` to be in the path)
+2. Download [eth2.0-specs](https://github.com/ethereum/eth2.0-specs)
+3. Replace `eth2.0-specs/deposit_contract/contracts/validator_registration.json` with `deposit_contract.json`
+4. In the `eth2.0-specs` directory run `make install_deposit_contract_tester` to install the tools needed (make sure to have Python 3.7 and pip installed)
+5. Finally in the `eth2.0-specs` directory run `make test_deposit_contract` to execute the tests
+
+The Makefile currently compiles the code without optimisations. To enable optimisations add `--optimize` to the `solc` line.
+
+
+## Running randomized `dapp` tests:
+
+Install the latest version of `dapp` by following the instructions at [dapp.tools](https://dapp.tools/). Then run
+```sh
+make test
+```
diff --git a/solidity_deposit_contract/circle.yml b/solidity_deposit_contract/circle.yml
new file mode 100644
index 000000000..c1b0b3506
--- /dev/null
+++ b/solidity_deposit_contract/circle.yml
@@ -0,0 +1,77 @@
+version: 2.1
+
+jobs:
+  build:
+    docker:
+      - image: ethereum/solc:0.6.11-alpine
+    steps:
+      - checkout
+      - run:
+          name: Install build essentials
+          command: |
+            apk update
+            apk add git make
+      - run:
+          name: Compile the contract
+          command: |
+            make
+            git diff --color --exit-code
+      - persist_to_workspace:
+          root: .
+          paths:
+            - deposit_contract.json
+            - build/combined.json
+            - lib
+
+  spectest:
+    docker:
+      - image: cimg/python:3.8.1
+    steps:
+      - checkout
+      - attach_workspace:
+          at: /tmp/
+      - run:
+          name: Update python3
+          command: |
+            sudo apt-get update
+            sudo apt-get install -y python3-venv
+      - run:
+          name: Install eth2.0-specs tests
+          command: |
+            git clone https://github.com/ethereum/eth2.0-specs --single-branch --branch v0.11.2
+            cp -f /tmp/deposit_contract.json eth2.0-specs/deposit_contract/contracts/validator_registration.json
+            cd eth2.0-specs
+            make install_deposit_contract_tester
+      - run:
+          name: Run eth2.0-specs tests
+          command: |
+            cd eth2.0-specs
+            make test_deposit_contract
+
+  test:
+    docker:
+      - image: nixorg/nix:circleci
+    steps:
+      - checkout
+      - attach_workspace:
+          at: /tmp/
+      - run:
+          name: Test the contract
+          command: |
+            mkdir build
+            cp -r /tmp/build/* build
+            cp -r /tmp/lib/* lib
+            nix-shell --command 'make test'
+
+workflows:
+  version: 2
+
+  build_and_test:
+    jobs:
+      - build
+      - spectest:
+          requires:
+            - build
+      - test:
+          requires:
+            - spectest
diff --git a/solidity_deposit_contract/deposit_contract.json b/solidity_deposit_contract/deposit_contract.json
new file mode 100644
index 000000000..060fe729c
--- /dev/null
+++ b/solidity_deposit_contract/deposit_contract.json
@@ -0,0 +1 @@
+{"abi": [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes","name":"pubkey","type":"bytes"},{"indexed":false,"internalType":"bytes","name":"withdrawal_credentials","type":"bytes"},{"indexed":false,"internalType":"bytes","name":"amount","type":"bytes"},{"indexed":false,"internalType":"bytes","name":"signature","type":"bytes"},{"indexed":false,"internalType":"bytes","name":"index","type":"bytes"}],"name":"DepositEvent","type":"event"},{"inputs":[{"internalType":"bytes","name":"pubkey","type":"bytes"},{"internalType":"bytes","name":"withdrawal_credentials","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"},{"internalType":"bytes32","name":"deposit_data_root","type":"bytes32"}],"name":"deposit","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"get_deposit_count","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"get_deposit_root","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"}], "bytecode": "0x608060405234801561001057600080fd5b5060005b601f8110156101025760026021826020811061002c57fe5b01546021836020811061003b57fe5b015460405160200180838152602001828152602001925050506040516020818303038152906040526040518082805190602001908083835b602083106100925780518252601f199092019160209182019101610073565b51815160209384036101000a60001901801990921691161790526040519190930194509192505080830381855afa1580156100d1573d6000803e3d6000fd5b5050506040513d60208110156100e657600080fd5b5051602160018301602081106100f857fe5b0155600101610014565b506118d680620001136000396000f3fe60806040526004361061003f5760003560e01c806301ffc9a71461004457806322895118146100a4578063621fd130146101ba578063c5f2892f14610244575b600080fd5b34801561005057600080fd5b506100906004803603602081101561006757600080fd5b50357fffffffff000000000000000000000000000000000000000000000000000000001661026b565b604080519115158252519081900360200190f35b6101b8600480360360808110156100ba57600080fd5b8101906020810181356401000000008111156100d557600080fd5b8201836020820111156100e757600080fd5b8035906020019184600183028401116401000000008311171561010957600080fd5b91939092909160208101903564010000000081111561012757600080fd5b82018360208201111561013957600080fd5b8035906020019184600183028401116401000000008311171561015b57600080fd5b91939092909160208101903564010000000081111561017957600080fd5b82018360208201111561018b57600080fd5b803590602001918460018302840111640100000000831117156101ad57600080fd5b919350915035610304565b005b3480156101c657600080fd5b506101cf6110b5565b6040805160208082528351818301528351919283929083019185019080838360005b838110156102095781810151838201526020016101f1565b50505050905090810190601f1680156102365780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b34801561025057600080fd5b506102596110c7565b60408051918252519081900360200190f35b60007fffffffff0000000000000000000000000000000000000000000000000000000082167f01ffc9a70000000000000000000000000000000000000000000000000000000014806102fe57507fffffffff0000000000000000000000000000000000000000000000000000000082167f8564090700000000000000000000000000000000000000000000000000000000145b92915050565b6030861461035d576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260268152602001806118056026913960400191505060405180910390fd5b602084146103b6576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040180806020018281038252603681526020018061179c6036913960400191505060405180910390fd5b6060821461040f576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260298152602001806118786029913960400191505060405180910390fd5b670de0b6b3a7640000341015610470576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260268152602001806118526026913960400191505060405180910390fd5b633b9aca003406156104cd576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260338152602001806117d26033913960400191505060405180910390fd5b633b9aca00340467ffffffffffffffff811115610535576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040180806020018281038252602781526020018061182b6027913960400191505060405180910390fd5b6060610540826114ba565b90507f649bbc62d0e31342afea4e5cd82d4049e7e1ee912fc0889aa790803be39038c589898989858a8a6105756020546114ba565b6040805160a0808252810189905290819060208201908201606083016080840160c085018e8e80828437600083820152601f017fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe01690910187810386528c815260200190508c8c808284376000838201819052601f9091017fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe01690920188810386528c5181528c51602091820193918e019250908190849084905b83811015610648578181015183820152602001610630565b50505050905090810190601f1680156106755780820380516001836020036101000a031916815260200191505b5086810383528881526020018989808284376000838201819052601f9091017fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe0169092018881038452895181528951602091820193918b019250908190849084905b838110156106ef5781810151838201526020016106d7565b50505050905090810190601f16801561071c5780820380516001836020036101000a031916815260200191505b509d505050505050505050505050505060405180910390a1600060028a8a600060801b604051602001808484808284377fffffffffffffffffffffffffffffffff0000000000000000000000000000000090941691909301908152604080517ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0818403018152601090920190819052815191955093508392506020850191508083835b602083106107fc57805182527fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe090920191602091820191016107bf565b51815160209384036101000a7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01801990921691161790526040519190930194509192505080830381855afa158015610859573d6000803e3d6000fd5b5050506040513d602081101561086e57600080fd5b5051905060006002806108846040848a8c6116fe565b6040516020018083838082843780830192505050925050506040516020818303038152906040526040518082805190602001908083835b602083106108f857805182527fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe090920191602091820191016108bb565b51815160209384036101000a7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01801990921691161790526040519190930194509192505080830381855afa158015610955573d6000803e3d6000fd5b5050506040513d602081101561096a57600080fd5b5051600261097b896040818d6116fe565b60405160009060200180848480828437919091019283525050604080518083038152602092830191829052805190945090925082918401908083835b602083106109f457805182527fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe090920191602091820191016109b7565b51815160209384036101000a7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01801990921691161790526040519190930194509192505080830381855afa158015610a51573d6000803e3d6000fd5b5050506040513d6020811015610a6657600080fd5b5051604080516020818101949094528082019290925280518083038201815260609092019081905281519192909182918401908083835b60208310610ada57805182527fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe09092019160209182019101610a9d565b51815160209384036101000a7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01801990921691161790526040519190930194509192505080830381855afa158015610b37573d6000803e3d6000fd5b5050506040513d6020811015610b4c57600080fd5b50516040805160208101858152929350600092600292839287928f928f92018383808284378083019250505093505050506040516020818303038152906040526040518082805190602001908083835b60208310610bd957805182527fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe09092019160209182019101610b9c565b51815160209384036101000a7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01801990921691161790526040519190930194509192505080830381855afa158015610c36573d6000803e3d6000fd5b5050506040513d6020811015610c4b57600080fd5b50516040518651600291889160009188916020918201918291908601908083835b60208310610ca957805182527fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe09092019160209182019101610c6c565b6001836020036101000a0380198251168184511680821785525050505050509050018367ffffffffffffffff191667ffffffffffffffff1916815260180182815260200193505050506040516020818303038152906040526040518082805190602001908083835b60208310610d4e57805182527fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe09092019160209182019101610d11565b51815160209384036101000a7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01801990921691161790526040519190930194509192505080830381855afa158015610dab573d6000803e3d6000fd5b5050506040513d6020811015610dc057600080fd5b5051604080516020818101949094528082019290925280518083038201815260609092019081905281519192909182918401908083835b60208310610e3457805182527fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe09092019160209182019101610df7565b51815160209384036101000a7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01801990921691161790526040519190930194509192505080830381855afa158015610e91573d6000803e3d6000fd5b5050506040513d6020811015610ea657600080fd5b50519050858114610f02576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260548152602001806117486054913960600191505060405180910390fd5b60205463ffffffff11610f60576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260218152602001806117276021913960400191505060405180910390fd5b602080546001019081905560005b60208110156110a9578160011660011415610fa0578260008260208110610f9157fe5b0155506110ac95505050505050565b600260008260208110610faf57fe5b01548460405160200180838152602001828152602001925050506040516020818303038152906040526040518082805190602001908083835b6020831061102557805182527fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe09092019160209182019101610fe8565b51815160209384036101000a7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01801990921691161790526040519190930194509192505080830381855afa158015611082573d6000803e3d6000fd5b5050506040513d602081101561109757600080fd5b50519250600282049150600101610f6e565b50fe5b50505050505050565b60606110c26020546114ba565b905090565b6020546000908190815b60208110156112f05781600116600114156111e6576002600082602081106110f557fe5b01548460405160200180838152602001828152602001925050506040516020818303038152906040526040518082805190602001908083835b6020831061116b57805182527fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe0909201916020918201910161112e565b51815160209384036101000a7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01801990921691161790526040519190930194509192505080830381855afa1580156111c8573d6000803e3d6000fd5b5050506040513d60208110156111dd57600080fd5b505192506112e2565b600283602183602081106111f657fe5b015460405160200180838152602001828152602001925050506040516020818303038152906040526040518082805190602001908083835b6020831061126b57805182527fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe0909201916020918201910161122e565b51815160209384036101000a7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01801990921691161790526040519190930194509192505080830381855afa1580156112c8573d6000803e3d6000fd5b5050506040513d60208110156112dd57600080fd5b505192505b6002820491506001016110d1565b506002826112ff6020546114ba565b600060401b6040516020018084815260200183805190602001908083835b6020831061135a57805182527fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe0909201916020918201910161131d565b51815160209384036101000a7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01801990921691161790527fffffffffffffffffffffffffffffffffffffffffffffffff000000000000000095909516920191825250604080518083037ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff8018152601890920190819052815191955093508392850191508083835b6020831061143f57805182527fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe09092019160209182019101611402565b51815160209384036101000a7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01801990921691161790526040519190930194509192505080830381855afa15801561149c573d6000803e3d6000fd5b5050506040513d60208110156114b157600080fd5b50519250505090565b60408051600880825281830190925260609160208201818036833701905050905060c082901b8060071a60f81b826000815181106114f457fe5b60200101907effffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916908160001a9053508060061a60f81b8260018151811061153757fe5b60200101907effffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916908160001a9053508060051a60f81b8260028151811061157a57fe5b60200101907effffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916908160001a9053508060041a60f81b826003815181106115bd57fe5b60200101907effffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916908160001a9053508060031a60f81b8260048151811061160057fe5b60200101907effffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916908160001a9053508060021a60f81b8260058151811061164357fe5b60200101907effffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916908160001a9053508060011a60f81b8260068151811061168657fe5b60200101907effffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916908160001a9053508060001a60f81b826007815181106116c957fe5b60200101907effffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916908160001a90535050919050565b6000808585111561170d578182fd5b83861115611719578182fd5b505082019391909203915056fe4465706f736974436f6e74726163743a206d65726b6c6520747265652066756c6c4465706f736974436f6e74726163743a207265636f6e7374727563746564204465706f7369744461746120646f6573206e6f74206d6174636820737570706c696564206465706f7369745f646174615f726f6f744465706f736974436f6e74726163743a20696e76616c6964207769746864726177616c5f63726564656e7469616c73206c656e6774684465706f736974436f6e74726163743a206465706f7369742076616c7565206e6f74206d756c7469706c65206f6620677765694465706f736974436f6e74726163743a20696e76616c6964207075626b6579206c656e6774684465706f736974436f6e74726163743a206465706f7369742076616c756520746f6f20686967684465706f736974436f6e74726163743a206465706f7369742076616c756520746f6f206c6f774465706f736974436f6e74726163743a20696e76616c6964207369676e6174757265206c656e677468a2646970667358221220dceca8706b29e917dacf25fceef95acac8d90d765ac926663ce4096195952b6164736f6c634300060b0033"}
\ No newline at end of file
diff --git a/solidity_deposit_contract/deposit_contract.sol b/solidity_deposit_contract/deposit_contract.sol
new file mode 100644
index 000000000..21d0b895a
--- /dev/null
+++ b/solidity_deposit_contract/deposit_contract.sol
@@ -0,0 +1,178 @@
+// ┏━━━┓━┏┓━┏┓━━┏━━━┓━━┏━━━┓━━━━┏━━━┓━━━━━━━━━━━━━━━━━━━┏┓━━━━━┏━━━┓━━━━━━━━━┏┓━━━━━━━━━━━━━━┏┓━
+// ┃┏━━┛┏┛┗┓┃┃━━┃┏━┓┃━━┃┏━┓┃━━━━┗┓┏┓┃━━━━━━━━━━━━━━━━━━┏┛┗┓━━━━┃┏━┓┃━━━━━━━━┏┛┗┓━━━━━━━━━━━━┏┛┗┓
+// ┃┗━━┓┗┓┏┛┃┗━┓┗┛┏┛┃━━┃┃━┃┃━━━━━┃┃┃┃┏━━┓┏━━┓┏━━┓┏━━┓┏┓┗┓┏┛━━━━┃┃━┗┛┏━━┓┏━┓━┗┓┏┛┏━┓┏━━┓━┏━━┓┗┓┏┛
+// ┃┏━━┛━┃┃━┃┏┓┃┏━┛┏┛━━┃┃━┃┃━━━━━┃┃┃┃┃┏┓┃┃┏┓┃┃┏┓┃┃━━┫┣┫━┃┃━━━━━┃┃━┏┓┃┏┓┃┃┏┓┓━┃┃━┃┏┛┗━┓┃━┃┏━┛━┃┃━
+// ┃┗━━┓━┃┗┓┃┃┃┃┃┃┗━┓┏┓┃┗━┛┃━━━━┏┛┗┛┃┃┃━┫┃┗┛┃┃┗┛┃┣━━┃┃┃━┃┗┓━━━━┃┗━┛┃┃┗┛┃┃┃┃┃━┃┗┓┃┃━┃┗┛┗┓┃┗━┓━┃┗┓
+// ┗━━━┛━┗━┛┗┛┗┛┗━━━┛┗┛┗━━━┛━━━━┗━━━┛┗━━┛┃┏━┛┗━━┛┗━━┛┗┛━┗━┛━━━━┗━━━┛┗━━┛┗┛┗┛━┗━┛┗┛━┗━━━┛┗━━┛━┗━┛
+// ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┃┃━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+// ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┗┛━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+// SPDX-License-Identifier: CC0-1.0
+
+pragma solidity 0.6.11;
+
+// This interface is designed to be compatible with the Vyper version.
+/// @notice This is the Ethereum 2.0 deposit contract interface.
+/// For more information see the Phase 0 specification under https://github.com/ethereum/eth2.0-specs
+interface IDepositContract {
+    /// @notice A processed deposit event.
+    event DepositEvent(
+        bytes pubkey,
+        bytes withdrawal_credentials,
+        bytes amount,
+        bytes signature,
+        bytes index
+    );
+
+    /// @notice Submit a Phase 0 DepositData object.
+    /// @param pubkey A BLS12-381 public key.
+    /// @param withdrawal_credentials Commitment to a public key for withdrawals.
+    /// @param signature A BLS12-381 signature.
+    /// @param deposit_data_root The SHA-256 hash of the SSZ-encoded DepositData object.
+    /// Used as a protection against malformed input.
+    function deposit(
+        bytes calldata pubkey,
+        bytes calldata withdrawal_credentials,
+        bytes calldata signature,
+        bytes32 deposit_data_root
+    ) external payable;
+
+    /// @notice Query the current deposit root hash.
+    /// @return The deposit root hash.
+    function get_deposit_root() external view returns (bytes32);
+
+    /// @notice Query the current deposit count.
+    /// @return The deposit count encoded as a little endian 64-bit number.
+    function get_deposit_count() external view returns (bytes memory);
+}
+
+// Based on official specification in https://eips.ethereum.org/EIPS/eip-165
+interface ERC165 {
+    /// @notice Query if a contract implements an interface
+    /// @param interfaceId The interface identifier, as specified in ERC-165
+    /// @dev Interface identification is specified in ERC-165. This function
+    ///  uses less than 30,000 gas.
+    /// @return `true` if the contract implements `interfaceId` and
+    ///  `interfaceId` is not 0xffffffff, `false` otherwise
+    function supportsInterface(bytes4 interfaceId) external pure returns (bool);
+}
+
+// This is a rewrite of the Vyper Eth2.0 deposit contract in Solidity.
+// It tries to stay as close as possible to the original source code.
+/// @notice This is the Ethereum 2.0 deposit contract interface.
+/// For more information see the Phase 0 specification under https://github.com/ethereum/eth2.0-specs
+contract DepositContract is IDepositContract, ERC165 {
+    uint constant DEPOSIT_CONTRACT_TREE_DEPTH = 32;
+    // NOTE: this also ensures `deposit_count` will fit into 64-bits
+    uint constant MAX_DEPOSIT_COUNT = 2**DEPOSIT_CONTRACT_TREE_DEPTH - 1;
+
+    bytes32[DEPOSIT_CONTRACT_TREE_DEPTH] branch;
+    uint256 deposit_count;
+
+    bytes32[DEPOSIT_CONTRACT_TREE_DEPTH] zero_hashes;
+
+    constructor() public {
+        // Compute hashes in empty sparse Merkle tree
+        for (uint height = 0; height < DEPOSIT_CONTRACT_TREE_DEPTH - 1; height++)
+            zero_hashes[height + 1] = sha256(abi.encodePacked(zero_hashes[height], zero_hashes[height]));
+    }
+
+    function get_deposit_root() override external view returns (bytes32) {
+        bytes32 node;
+        uint size = deposit_count;
+        for (uint height = 0; height < DEPOSIT_CONTRACT_TREE_DEPTH; height++) {
+            if ((size & 1) == 1)
+                node = sha256(abi.encodePacked(branch[height], node));
+            else
+                node = sha256(abi.encodePacked(node, zero_hashes[height]));
+            size /= 2;
+        }
+        return sha256(abi.encodePacked(
+            node,
+            to_little_endian_64(uint64(deposit_count)),
+            bytes24(0)
+        ));
+    }
+
+    function get_deposit_count() override external view returns (bytes memory) {
+        return to_little_endian_64(uint64(deposit_count));
+    }
+
+    function deposit(
+        bytes calldata pubkey,
+        bytes calldata withdrawal_credentials,
+        bytes calldata signature,
+        bytes32 deposit_data_root
+    ) override external payable {
+        // Extended ABI length checks since dynamic types are used.
+        require(pubkey.length == 48, "DepositContract: invalid pubkey length");
+        require(withdrawal_credentials.length == 32, "DepositContract: invalid withdrawal_credentials length");
+        require(signature.length == 96, "DepositContract: invalid signature length");
+
+        // Check deposit amount
+        require(msg.value >= 1 ether, "DepositContract: deposit value too low");
+        require(msg.value % 1 gwei == 0, "DepositContract: deposit value not multiple of gwei");
+        uint deposit_amount = msg.value / 1 gwei;
+        require(deposit_amount <= type(uint64).max, "DepositContract: deposit value too high");
+
+        // Emit `DepositEvent` log
+        bytes memory amount = to_little_endian_64(uint64(deposit_amount));
+        emit DepositEvent(
+            pubkey,
+            withdrawal_credentials,
+            amount,
+            signature,
+            to_little_endian_64(uint64(deposit_count))
+        );
+
+        // Compute deposit data root (`DepositData` hash tree root)
+        bytes32 pubkey_root = sha256(abi.encodePacked(pubkey, bytes16(0)));
+        bytes32 signature_root = sha256(abi.encodePacked(
+            sha256(abi.encodePacked(signature[:64])),
+            sha256(abi.encodePacked(signature[64:], bytes32(0)))
+        ));
+        bytes32 node = sha256(abi.encodePacked(
+            sha256(abi.encodePacked(pubkey_root, withdrawal_credentials)),
+            sha256(abi.encodePacked(amount, bytes24(0), signature_root))
+        ));
+
+        // Verify computed and expected deposit data roots match
+        require(node == deposit_data_root, "DepositContract: reconstructed DepositData does not match supplied deposit_data_root");
+
+        // Avoid overflowing the Merkle tree (and prevent edge case in computing `branch`)
+        require(deposit_count < MAX_DEPOSIT_COUNT, "DepositContract: merkle tree full");
+
+        // Add deposit data root to Merkle tree (update a single `branch` node)
+        deposit_count += 1;
+        uint size = deposit_count;
+        for (uint height = 0; height < DEPOSIT_CONTRACT_TREE_DEPTH; height++) {
+            if ((size & 1) == 1) {
+                branch[height] = node;
+                return;
+            }
+            node = sha256(abi.encodePacked(branch[height], node));
+            size /= 2;
+        }
+        // As the loop should always end prematurely with the `return` statement,
+        // this code should be unreachable. We assert `false` just to be safe.
+        assert(false);
+    }
+
+    function supportsInterface(bytes4 interfaceId) override external pure returns (bool) {
+        return interfaceId == type(ERC165).interfaceId || interfaceId == type(IDepositContract).interfaceId;
+    }
+
+    function to_little_endian_64(uint64 value) internal pure returns (bytes memory ret) {
+        ret = new bytes(8);
+        bytes8 bytesValue = bytes8(value);
+        // Byteswapping during copying to bytes.
+        ret[0] = bytesValue[7];
+        ret[1] = bytesValue[6];
+        ret[2] = bytesValue[5];
+        ret[3] = bytesValue[4];
+        ret[4] = bytesValue[3];
+        ret[5] = bytesValue[2];
+        ret[6] = bytesValue[1];
+        ret[7] = bytesValue[0];
+    }
+}
diff --git a/solidity_deposit_contract/lib/ds-test b/solidity_deposit_contract/lib/ds-test
new file mode 160000
index 000000000..eb7148d43
--- /dev/null
+++ b/solidity_deposit_contract/lib/ds-test
@@ -0,0 +1 @@
+Subproject commit eb7148d43c1ca6f9890361e2e2378364af2430ba
diff --git a/solidity_deposit_contract/shell.nix b/solidity_deposit_contract/shell.nix
new file mode 100644
index 000000000..d0727d49a
--- /dev/null
+++ b/solidity_deposit_contract/shell.nix
@@ -0,0 +1,18 @@
+let dapptools = builtins.fetchGit {
+    url = "https://github.com/dapphub/dapptools.git";
+    rev = "11dcefe1f03b0acafe76b4d7d54821ef6bd63131";
+  };
+    nixpkgs = builtins.fetchGit {
+      url = "https://github.com/nixos/nixpkgs";
+      ref = "release-19.03";
+      rev = "f1707d8875276cfa110139435a7e8998b4c2a4fd";
+  };
+  pkgs-for-dapp = import nixpkgs {
+    overlays = [
+      (import (dapptools + /overlay.nix))
+    ];
+  };
+in
+pkgs-for-dapp.mkShell {
+  buildInputs = [ pkgs-for-dapp.dapp pkgs-for-dapp.solc pkgs-for-dapp.hevm ];
+}
diff --git a/solidity_deposit_contract/tests/deposit_contract.t.sol b/solidity_deposit_contract/tests/deposit_contract.t.sol
new file mode 100644
index 000000000..5742bd934
--- /dev/null
+++ b/solidity_deposit_contract/tests/deposit_contract.t.sol
@@ -0,0 +1,142 @@
+pragma solidity ^0.6.2;
+
+import "../lib/ds-test/src/test.sol";
+
+import "./vyper_setup.sol";
+import "../deposit_contract.sol";
+
+contract DepositContractTest is DSTest {
+  DepositContract depositContract_sol;
+  DepositContract depositContract_vyp;
+  uint64 constant GWEI = 1000000000;
+
+  function setUp() public {
+    VyperSetup vyperSetup = new VyperSetup();
+    depositContract_vyp = DepositContract(vyperSetup.deployDeposit());
+    depositContract_sol = new DepositContract();
+  }
+
+  // --- SUCCESS TESTS ---
+
+  // Tests initilized storage values, comparing vyper and solidity
+  function test_empty_root() public {
+    bytes32 zHash = 0x0000000000000000000000000000000000000000000000000000000000000000;
+    bytes32 zHashN = zHash;
+    for (uint i = 0; i <= 31; i++) {
+      zHashN = sha256(abi.encodePacked(zHashN, zHashN));
+    }
+    assertEq(sha256(abi.encodePacked(zHashN, zHash)), depositContract_vyp.get_deposit_root());
+    assertEq(depositContract_sol.get_deposit_root(),  depositContract_vyp.get_deposit_root());
+  }
+
+  // Generates 16 random deposits, insert them in both vyper and solidity version and compare get_deposit_root after each insertion
+  function test_16_deposits(bytes32[16] memory pubkey_one, bytes16[16] memory pubkey_two, bytes32[16] memory _withdrawal_credentials,
+                            bytes32[16] memory sig_one, bytes32[16] memory sig_two, bytes32[16] memory sig_three, uint32[16] memory amount) public {
+    uint j;
+    for (uint i = 0; i < 16; i++) {
+      // as of dcaa774, the solidity version is more restrictive than vyper and requires deposits to be divisible by GWEI
+      uint64 gweiamount = amount[i] * GWEI;
+      if (1 ether <= gweiamount) {
+        j++;
+        deposit_in(depositContract_sol, pubkey_one[i], pubkey_two[i], _withdrawal_credentials[i], sig_one[i], sig_two[i], sig_three[i], gweiamount);
+        deposit_in(depositContract_vyp, pubkey_one[i], pubkey_two[i], _withdrawal_credentials[i], sig_one[i], sig_two[i], sig_three[i], gweiamount);
+
+        assertEq(depositContract_sol.get_deposit_root(), depositContract_vyp.get_deposit_root());
+        assertEq(keccak256(abi.encodePacked(depositContract_sol.get_deposit_count())), keccak256(abi.encodePacked(depositContract_vyp.get_deposit_count())));
+        assertEq(keccak256(abi.encodePacked(depositContract_sol.get_deposit_count())), keccak256(to_little_endian_64(uint64(j))));
+      }
+    }
+  }
+
+  // The solidity contract fails when given a deposit which is not divisible by GWEI
+
+  function testFail_deposit_not_divisible_by_gwei(bytes32 pubkey_one, bytes16 pubkey_two, bytes32 _withdrawal_credentials,
+                                                  bytes32 sig_one, bytes32 sig_two, bytes32 sig_three) public {
+    deposit_in(depositContract_sol, pubkey_one, pubkey_two, _withdrawal_credentials, sig_one, sig_two, sig_three, 1 ether + 1);
+  }
+
+  // --- FAILURE TESTS ---
+
+  // if the node is given randomly instead of as the ssz root, the chances of success are so unlikely that we can assert it to be false
+  function testFail_malformed_node_vyp(bytes32 pubkey_one, bytes16 pubkey_two, bytes32 _withdrawal_credentials, bytes32 sig_one,
+                                       bytes32 sig_two, bytes32 sig_three, uint64 amount, bytes32 node) public {
+    bytes memory pubkey = abi.encodePacked(pubkey_one, pubkey_two);
+    bytes memory withdrawal_credentials = abi.encodePacked(_withdrawal_credentials); //I wish just recasting to `bytes` would work..
+    bytes memory signature = abi.encodePacked(sig_one, sig_two, sig_three);
+    depositContract_vyp.deposit{value: amount}(pubkey, withdrawal_credentials, signature, node);
+  }
+
+  // If the node is taken randomly instead of as the ssz root, the chances of success are so unlikely that we can assert it to be false
+  function testFail_malformed_node_sol(bytes32 pubkey_one, bytes16 pubkey_two, bytes32 _withdrawal_credentials, bytes32 sig_one,
+                                       bytes32 sig_two, bytes32 sig_three, uint64 amount, bytes32 node) public {
+    bytes memory pubkey = abi.encodePacked(pubkey_one, pubkey_two);
+    bytes memory withdrawal_credentials = abi.encodePacked(_withdrawal_credentials);
+    bytes memory signature = abi.encodePacked(sig_one, sig_two, sig_three);
+    depositContract_sol.deposit{value: amount}(pubkey, withdrawal_credentials, signature, node);
+  }
+
+  // if bytes lengths are wrong, the call will fail
+  function testFail_malformed_calldata_vyp(bytes memory pubkey, bytes memory withdrawal_credentials, bytes memory signature, uint64 amount) public {
+    if (amount >= 1000000000000000000) {
+      if (!(pubkey.length == 48 && withdrawal_credentials.length == 32 && signature.length == 96)) {
+        depositContract_vyp.deposit{value: amount}(pubkey, withdrawal_credentials, signature,
+                                                  encode_node(pubkey, withdrawal_credentials, signature, to_little_endian_64(amount / GWEI))
+                                                 );
+      } else { revert(); }
+    } else { revert(); }
+  }
+
+  function testFail_malformed_calldata_sol(bytes memory pubkey, bytes memory withdrawal_credentials, bytes memory signature, uint64 amount) public {
+    if (amount >= 1000000000000000000) {
+      if (!(pubkey.length == 48 && withdrawal_credentials.length == 32 && signature.length == 96)) {
+        depositContract_sol.deposit{value: amount}(pubkey, withdrawal_credentials, signature,
+                                                  encode_node(pubkey, withdrawal_credentials, signature, to_little_endian_64(amount / GWEI))
+                                                 );
+      } else { revert(); }
+    } else { revert(); }
+  }
+
+  // --- HELPER FUNCTIONS ---
+
+  function deposit_in(DepositContract depositContract, bytes32 pubkey_one, bytes16 pubkey_two, bytes32 _withdrawal_credentials, bytes32 sig_one, bytes32 sig_two, bytes32 sig_three, uint64 amount) public {
+    bytes memory pubkey = abi.encodePacked(pubkey_one, pubkey_two);
+    bytes memory withdrawal_credentials = abi.encodePacked(_withdrawal_credentials);
+    bytes memory signature = abi.encodePacked(sig_one, sig_two, sig_three);
+    bytes32 node = encode_node(pubkey, withdrawal_credentials, signature, to_little_endian_64(amount / GWEI));
+    depositContract.deposit{value: amount}(pubkey, withdrawal_credentials, signature, node);
+  }
+
+  function slice(bytes memory a, uint32 offset, uint32 size) pure internal returns (bytes memory result) {
+    result = new bytes(size);
+    for (uint i = 0; i < size; i++) {
+      result[i] = a[offset + i];
+    }
+  }
+
+  function encode_node(bytes memory pubkey, bytes memory withdrawal_credentials, bytes memory signature, bytes memory amount) public pure returns (bytes32) {
+    bytes16 zero_bytes16;
+    bytes24 zero_bytes24;
+    bytes32 zero_bytes32;
+    bytes32 pubkey_root = sha256(abi.encodePacked(pubkey, zero_bytes16));
+    bytes32 signature_root = sha256(abi.encodePacked(
+      sha256(abi.encodePacked(slice(signature, 0, 64))),
+      sha256(abi.encodePacked(slice(signature, 64, 32), zero_bytes32))
+    ));
+    return sha256(abi.encodePacked(
+      sha256(abi.encodePacked(pubkey_root, withdrawal_credentials)),
+      sha256(abi.encodePacked(amount, zero_bytes24, signature_root))
+    ));
+  }
+
+  function to_little_endian_64(uint64 value) internal pure returns (bytes memory ret) {
+    ret = new bytes(8);
+    ret[0] = bytes1(uint8(value & 0xff));
+    ret[1] = bytes1(uint8((value >> 8) & 0xff));
+    ret[2] = bytes1(uint8((value >> 16) & 0xff));
+    ret[3] = bytes1(uint8((value >> 24) & 0xff));
+    ret[4] = bytes1(uint8((value >> 32) & 0xff));
+    ret[5] = bytes1(uint8((value >> 40) & 0xff));
+    ret[6] = bytes1(uint8((value >> 48) & 0xff));
+    ret[7] = bytes1(uint8((value >> 56) & 0xff));
+  }
+}
diff --git a/solidity_deposit_contract/tests/vyper_setup.sol b/solidity_deposit_contract/tests/vyper_setup.sol
new file mode 100644
index 000000000..8d82c754d
--- /dev/null
+++ b/solidity_deposit_contract/tests/vyper_setup.sol
@@ -0,0 +1,16 @@
+pragma solidity ^0.6.0;
+
+contract VyperSetup {
+  // Bytecode from https://github.com/ethereum/eth2.0-specs/blob/dev/deposit_contract/contracts/validator_registration.json
+  bytes constant public depositCode = hex"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";
+  function write(bytes memory _code) public returns (address target) {
+    assembly {
+      target := create(0, add(_code, 0x20), mload(_code))
+    }
+  }
+
+  function deployDeposit() public returns (address) {
+    return write(depositCode);
+  }
+}
+