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fix issues in justificaiton/finality

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Danny Ryan 2018-12-05 13:55:56 -06:00
parent 4e0b120fe3
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1 changed files with 6 additions and 6 deletions
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specs/core/0_beacon-chain.md
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@ -1422,14 +1422,14 @@ If `state.slot % POW_RECEIPT_ROOT_VOTING_PERIOD == 0`:
* Set `state.previous_justified_slot = state.justified_slot`. * Set `state.previous_justified_slot = state.justified_slot`.
* Set `state.justification_bitfield = (state.justification_bitfield * 2) % 2**64`. * Set `state.justification_bitfield = (state.justification_bitfield * 2) % 2**64`.
* Set `state.justification_bitfield &= 2` and `state.justified_slot = s - EPOCH_LENGTH` if `3 * previous_epoch_boundary_attesting_balance >= 2 * total_balance`. * Set `state.justification_bitfield |= 2` and `state.justified_slot = s - EPOCH_LENGTH` if `3 * previous_epoch_boundary_attesting_balance >= 2 * total_balance`.
* Set `state.justification_bitfield &= 1` and `state.justified_slot = s` if `3 * this_epoch_boundary_attesting_balance >= 2 * total_balance`. * Set `state.justification_bitfield |= 1` and `state.justified_slot = s` if `3 * this_epoch_boundary_attesting_balance >= 2 * total_balance`.
### Finalization # Finalization
* Set `state.finalized_slot = state.justified_slot` if `state.justified_slot == s - 1 * EPOCH_LENGTH and state.justification_bitfield % 4 == 3`. * Set `state.finalized_slot = state.justified_slot - EPOCH_LENGTH` if `state.justified_slot == s and state.justification_bitfield % 4 == 3`.
* Set `state.finalized_slot = state.justified_slot` if `state.justified_slot == s - 2 * EPOCH_LENGTH and state.justification_bitfield % 8 == 7`. * Set `state.finalized_slot = state.justified_slot - EPOCH_LENGTH` if `state.justified_slot == s - EPOCH_LENGTH and state.justification_bitfield % 8 == 7`.
* Set `state.finalized_slot = state.justified_slot` If `state.justified_slot == s - 3 * EPOCH_LENGTH and state.justification_bitfield % 16 in (15, 14)`. * Set `state.finalized_slot = state.justified_slot - EPOCH_LENGTH` if `state.justified_slot == s - 2 * EPOCH_LENGTH and state.justification_bitfield % 16 in (15, 14)`.
### Crosslinks ### Crosslinks