diff --git a/README.md b/README.md
index fa103394d..1bb2ae49f 100644
--- a/README.md
+++ b/README.md
@@ -18,9 +18,9 @@ Core specifications for Eth2 client validation can be found in [specs/core](spec
 * [Honest Validator](specs/validator/0_beacon-chain-validator.md)
 
 ### Phase 1
+* [The Beacon Chain for Shards](specs/core/1_beacon-chain.md)
 * [Custody Game](specs/core/1_custody-game.md)
-* [Shard Data Chains](specs/core/1_shard-data-chains.md)
-* [Misc beacon chain updates](specs/core/1_beacon-chain-misc.md)
+* [Shard Transition and Fraud Proofs](specs/core/1_fraud_proofs.md)
 
 ### Phase 2
 
diff --git a/specs/core/1_fraudproofs.md b/specs/core/1_fraud_proofs.md
similarity index 94%
rename from specs/core/1_fraudproofs.md
rename to specs/core/1_fraud_proofs.md
index 46ba390cd..e44f790ed 100644
--- a/specs/core/1_fraudproofs.md
+++ b/specs/core/1_fraud_proofs.md
@@ -1,4 +1,4 @@
-# Ethereum 2.0 Phase 1 -- Crosslinks and Shard Data
+# Ethereum 2.0 Phase 1 -- Shard Transition and Fraud Proofs
 
 **Notice**: This document is a work-in-progress for researchers and implementers.
 
@@ -12,7 +12,7 @@
 
 ## Introduction
 
-This document describes the shard transition function (data layer only) and the shard fork choice rule as part of Phase 1 of Ethereum 2.0.
+This document describes the shard transition function and fraud proofs as part of Phase 1 of Ethereum 2.0.
 
 ## Fraud proofs