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Update beacon-chain.md

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Justin 2021-03-19 10:04:46 +00:00 committed by GitHub
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specs/altair/beacon-chain.md
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@ -294,8 +294,8 @@ def get_sync_committee(state: BeaconState, epoch: Epoch) -> SyncCommittee:
"""
indices = get_sync_committee_indices(state, epoch)
pubkeys = [state.validators[index].pubkey for index in indices]
subcommitees = [pubkeys[i:i + SYNC_PUBKEY_AGGREGATE_SIZE] for i in range(0, len(pubkeys), SYNC_PUBKEY_AGGREGATE_SIZE)]
pubkey_aggregates = [bls.AggregatePKs(subcommitee) for subcommitee in subcommitees]
partition = [pubkeys[i:i + SYNC_PUBKEY_AGGREGATE_SIZE] for i in range(0, len(pubkeys), SYNC_PUBKEY_AGGREGATE_SIZE)]
pubkey_aggregates = [bls.AggregatePKs(preaggregate) for preaggregate in partition]
return SyncCommittee(pubkeys=pubkeys, pubkey_aggregates=pubkey_aggregates)
```