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fixed typo & s/winning_hash/winning_root/

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Terence Tsao 2018-12-11 12:50:20 -08:00
parent a13997d738
commit 3f31eecb18
1 changed files with 4 additions and 4 deletions
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8
specs/core/0_beacon-chain.md
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@ -898,7 +898,7 @@ def get_beacon_proposer_index(state: BeaconState,
#### `get_updated_ancestor_hashes`
```pythonproposal_root
```python
def get_updated_ancestor_hashes(latest_block: BeaconBlock,
latest_root: Hash32) -> List[Hash32]:
new_ancestor_hashes = copy.deepcopy(latest_block.ancestor_hashes)
@ -1473,8 +1473,8 @@ All [validators](#dfn-validator):
For every `shard_committee` in `state.shard_committees_at_slots`:
* Let `attesting_validators(shard_committee, shard_block_root)` be the union of the [validator](#dfn-validator) index sets given by `[get_attestation_participants(state, a.data, a.participation_bitfield) for a in this_epoch_attestations + previous_epoch_attestations if a.shard == shard_committee.shard and a.shard_block_root == shard_block_root]`.
* Let `winning_hash(shard_committee)` be equal to the value of `shard_block_root` such that `sum([get_effective_balance(v) for v in attesting_validators(shard_committee, shard_block_root)])` is maximized (ties broken by favoring lower `shard_block_root` values).
* Let `attesting_validators(shard_committee)` be equal to `attesting_validators(shard_committee, winning_hash(shard_committee))` for convenience.
* Let `winning_root(shard_committee)` be equal to the value of `shard_block_root` such that `sum([get_effective_balance(v) for v in attesting_validators(shard_committee, shard_block_root)])` is maximized (ties broken by favoring lower `shard_block_root` values).
* Let `attesting_validators(shard_committee)` be equal to `attesting_validators(shard_committee, winning_root(shard_committee))` for convenience.
* Let `total_attesting_balance(shard_committee)` be the sum of the balances-at-stake of `attesting_validators(shard_committee)`.
* Let `total_balance(shard_committee) = sum([get_effective_balance(v) for v in shard_committee.committee])`.
* Let `inclusion_slot(v) = a.slot_included` for the attestation `a` where `v` is in `get_attestation_participants(state, a.data, a.participation_bitfield)`.
@ -1516,7 +1516,7 @@ Set `state.finalized_slot = state.previous_justified_slot` if any of the followi
For every `shard_committee` in `state.shard_committees_at_slots`:
* Set `state.latest_crosslinks[shard] = CrosslinkRecord(slot=state.slot, block_root=winning_hash(shard_committee))` if `3 * total_attesting_balance(shard_committee) >= 2 * total_balance(shard_committee)`.
* Set `state.latest_crosslinks[shard] = CrosslinkRecord(slot=state.slot, block_root=winning_root(shard_committee))` if `3 * total_attesting_balance(shard_committee) >= 2 * total_balance(shard_committee)`.
### Justification and finalization rewards and penalties