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change crosslink.slot to crosslink.epoch

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Danny Ryan 2019-01-26 07:55:32 -07:00
parent 0e90dd8ad0
commit c9494dbf88
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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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@ -539,8 +539,8 @@ Code snippets appearing in `this style` are to be interpreted as Python code. Be
```python
{
# Slot number
'slot': 'uint64',
# Epoch number
'epoch': 'uint64',
# Shard block root
'shard_block_root': 'bytes32',
}
@ -1291,7 +1291,7 @@ def get_initial_beacon_state(initial_validator_deposits: List[Deposit],
finalized_slot=GENESIS_SLOT,
# Recent state
latest_crosslinks=[Crosslink(slot=GENESIS_SLOT, shard_block_root=ZERO_HASH) for _ in range(SHARD_COUNT)],
latest_crosslinks=[Crosslink(epoch=slot_to_epoch(GENESIS_SLOT), shard_block_root=ZERO_HASH) for _ in range(SHARD_COUNT)],
latest_block_roots=[ZERO_HASH for _ in range(LATEST_BLOCK_ROOTS_LENGTH)],
latest_index_roots=[ZERO_HASH for _ in range(LATEST_INDEX_ROOTS_LENGTH)],
latest_penalized_balances=[0 for _ in range(LATEST_PENALIZED_EXIT_LENGTH)],
@ -1318,7 +1318,7 @@ def get_initial_beacon_state(initial_validator_deposits: List[Deposit],
if get_effective_balance(state, validator_index) >= MAX_DEPOSIT_AMOUNT:
activate_validator(state, validator_index, True)
genesis_epoch = slot_to_epoch(GENESIS_SLOT)
genesis_epoch = current_epoch(state)
state.latest_index_roots[genesis_epoch % LATEST_INDEX_ROOTS_LENGTH] = hash_tree_root(get_active_validator_indices(state, genesis_epoch))
state.current_epoch_seed = generate_seed(state, genesis_epoch)
@ -1687,7 +1687,7 @@ Finally, update the following:
For every `slot in range(previous_epoch_start_slot, next_epoch_start_slot)`, let `crosslink_committees_at_slot = get_crosslink_committees_at_slot(state, slot)`. For every `(crosslink_committee, shard)` in `crosslink_committees_at_slot`, compute:
* Set `state.latest_crosslinks[shard] = Crosslink(slot=current_epoch_start_slot, shard_block_root=winning_root(crosslink_committee))` if `3 * total_attesting_balance(crosslink_committee) >= 2 * total_balance(crosslink_committee)`.
* Set `state.latest_crosslinks[shard] = Crosslink(epoch=current_epoch(state), shard_block_root=winning_root(crosslink_committee))` if `3 * total_attesting_balance(crosslink_committee) >= 2 * total_balance(crosslink_committee)`.
### Rewards and penalties
@ -1763,7 +1763,7 @@ First, update the following:
If the following are satisfied:
* `slot_to_epoch(state.finalized_slot) > state.validator_registry_update_epoch`
* `slot_to_epoch(state.latest_crosslinks[shard].slot) > state.validator_registry_update_epoch` for every shard number `shard` in `[(state.current_epoch_start_shard + i) % SHARD_COUNT for i in range(get_current_epoch_committee_count_per_slot(state) * EPOCH_LENGTH)]` (that is, for every shard in the current committees)
* `state.latest_crosslinks[shard].epoch > state.validator_registry_update_epoch` for every shard number `shard` in `[(state.current_epoch_start_shard + i) % SHARD_COUNT for i in range(get_current_epoch_committee_count_per_slot(state) * EPOCH_LENGTH)]` (that is, for every shard in the current committees)
update the validator registry and associated fields by running