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helpful comment for persistent committee shuffling

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terence tsao 2018-11-08 08:28:44 -08:00 committed by GitHub
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specs/beacon-chain.md
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@ -849,6 +849,8 @@ Now run the following code to reshuffle a few proposers:
active_validator_indices = get_active_validator_indices(validators)
num_validators_to_reshuffle = len(active_validator_indices) // SHARD_PERSISTENT_COMMITTEE_CHANGE_PERIOD
for i in range(num_validators_to_reshuffle):
# Multiplying i to 2 to ensure we have different input to all the required hashes in the shuffling
# and none of the hashes used for entropy in this loop will be the same
vid = active_validator_indices[hash(active_state.randao_mix + bytes8(i * 2)) % len(active_validator_indices)]
new_shard = hash(active_state.randao_mix + bytes8(i * 2 + 1)) % SHARD_COUNT
shard_reassignment_record = ShardReassignmentRecord(