diff --git a/beacon_chain/block_pools/candidate_chains.nim b/beacon_chain/block_pools/candidate_chains.nim
index 9bfb92ab4..e011eca5c 100644
--- a/beacon_chain/block_pools/candidate_chains.nim
+++ b/beacon_chain/block_pools/candidate_chains.nim
@@ -133,7 +133,7 @@ func atSlot*(blck: BlockRef, slot: Slot): BlockSlot =
   ## block proposal)
   BlockSlot(blck: blck.getAncestorAt(slot), slot: slot)
 
-func init*(T: type BlockRef, root: Eth2Digest, slot: Slot): BlockRef =
+func init(T: type BlockRef, root: Eth2Digest, slot: Slot): BlockRef =
   BlockRef(
     root: root,
     slot: slot
@@ -828,7 +828,7 @@ proc getProposer*(
   dag.withState(dag.tmpState, head.atSlot(slot)):
     var cache = get_empty_per_epoch_cache()
 
-    # https://github.com/ethereum/eth2.0-specs/blob/v0.11.1/specs/phase0/validator.md#validator-assignments
+    # https://github.com/ethereum/eth2.0-specs/blob/v0.11.3/specs/phase0/validator.md#validator-assignments
     let proposerIdx = get_beacon_proposer_index(state, cache)
     if proposerIdx.isNone:
       warn "Missing proposer index",
diff --git a/beacon_chain/spec/state_transition_block.nim b/beacon_chain/spec/state_transition_block.nim
index 1205e1772..dec2a1caf 100644
--- a/beacon_chain/spec/state_transition_block.nim
+++ b/beacon_chain/spec/state_transition_block.nim
@@ -95,7 +95,7 @@ proc process_block_header*(
 
   true
 
-# https://github.com/ethereum/eth2.0-specs/blob/v0.9.2/specs/core/0_beacon-chain.md#randao
+# https://github.com/ethereum/eth2.0-specs/blob/v0.11.3/specs/phase0/beacon-chain.md#randao
 proc process_randao(
     state: var BeaconState, body: BeaconBlockBody, flags: UpdateFlags,
     stateCache: var StateCache): bool {.nbench.}=
@@ -107,9 +107,9 @@ proc process_randao(
     debug "Proposer index missing, probably along with any active validators"
     return false
 
+  # Verify RANDAO reveal
   let proposer = addr state.validators[proposer_index.get]
 
-  # Verify that the provided randao value is valid
   let signing_root = compute_signing_root(
     epoch, get_domain(state, DOMAIN_RANDAO, get_current_epoch(state)))
   if skipBLSValidation notin flags:
diff --git a/beacon_chain/spec/validator.nim b/beacon_chain/spec/validator.nim
index 0a64472e2..a752790ff 100644
--- a/beacon_chain/spec/validator.nim
+++ b/beacon_chain/spec/validator.nim
@@ -219,7 +219,7 @@ func get_beacon_proposer_indexes_for_epoch*(state: BeaconState, epoch: Epoch, st
     if idx.isSome:
       result.add (currSlot, idx.get)
 
-# https://github.com/ethereum/eth2.0-specs/blob/v0.11.1/specs/phase0/validator.md#validator-assignments
+# https://github.com/ethereum/eth2.0-specs/blob/v0.11.3/specs/phase0/validator.md#validator-assignments
 func get_committee_assignment(
     state: BeaconState, epoch: Epoch, validator_index: ValidatorIndex):
     Option[tuple[a: seq[ValidatorIndex], b: CommitteeIndex, c: Slot]] {.used.} =
@@ -244,7 +244,7 @@ func get_committee_assignment(
         return some((committee, idx, slot))
   none(tuple[a: seq[ValidatorIndex], b: CommitteeIndex, c: Slot])
 
-# https://github.com/ethereum/eth2.0-specs/blob/v0.11.1/specs/phase0/validator.md#validator-assignments
+# https://github.com/ethereum/eth2.0-specs/blob/v0.11.3/specs/phase0/validator.md#validator-assignments
 func is_proposer(
     state: BeaconState, validator_index: ValidatorIndex): bool {.used.} =
   var cache = get_empty_per_epoch_cache()