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Update 0_beacon-chain.md

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Justin 2019-03-12 10:26:34 +00:00 committed by GitHub
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specs/core/0_beacon-chain.md
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@ -614,6 +614,7 @@ The types are defined topologically to aid in facilitating an executable version
'current_justified_root': 'bytes32', 'current_justified_root': 'bytes32',
'justification_bitfield': 'uint64', 'justification_bitfield': 'uint64',
'finalized_epoch': 'uint64', 'finalized_epoch': 'uint64',
'finalized_root': 'bytes32',
# Recent state # Recent state
'latest_crosslinks': [Crosslink, SHARD_COUNT], 'latest_crosslinks': [Crosslink, SHARD_COUNT],
@ -1828,6 +1829,7 @@ def update_justification_and_finalization(state: BeaconState) -> None:
# The 1st/2nd most recent epochs are both justified, the 1st using the 2nd as source # The 1st/2nd most recent epochs are both justified, the 1st using the 2nd as source
if (bitfield >> 0) % 4 == 0b11 and state.current_justified_epoch == current_epoch - 1: if (bitfield >> 0) % 4 == 0b11 and state.current_justified_epoch == current_epoch - 1:
state.finalized_epoch = state.current_justified_epoch state.finalized_epoch = state.current_justified_epoch
state.finalized_root = get_block_root(state, get_epoch_start_slot(finalized_epoch))
# Rotate justified epochs # Rotate justified epochs
state.previous_justified_epoch = state.current_justified_epoch state.previous_justified_epoch = state.current_justified_epoch