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rework rewards sections as per PR feedback

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Danny Ryan 2018-12-12 09:07:44 -06:00
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specs/core/0_beacon-chain.md
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@ -103,8 +103,10 @@
- [Justification](#justification) - [Justification](#justification)
- [Finalization](#finalization) - [Finalization](#finalization)
- [Crosslinks](#crosslinks) - [Crosslinks](#crosslinks)
- [Justification and finalization rewards and penalties](#justification-and-finalization-rewards-and-penalties) - [Rewards and penalties](#rewards-and-penalties)
- [Crosslink rewards and penalties](#crosslink-rewards-and-penalties) - [Justification and finalization](#justification-and-finalization)
- [Attestation inclusion](#attestation-inclusion)
- [Crosslinks](#crosslinks-1)
- [Validator registry](#validator-registry) - [Validator registry](#validator-registry)
- [Proposer reshuffling](#proposer-reshuffling) - [Proposer reshuffling](#proposer-reshuffling)
- [Final updates](#final-updates) - [Final updates](#final-updates)
@ -1553,7 +1555,9 @@ For every `shard_committee` in `state.shard_committees_at_slots`:
* 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)`. * 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 ### Rewards and penalties
#### Justification and finalization
Note: When applying penalties in the following balance recalculations implementers should make sure the `uint64` does not underflow. Note: When applying penalties in the following balance recalculations implementers should make sure the `uint64` does not underflow.
@ -1578,9 +1582,11 @@ Case 2: `slots_since_finality > 4 * EPOCH_LENGTH`:
* Any [active validator](#dfn-active-validator) `v` not in `previous_epoch_head_attesters`, loses `base_inactivity_penalty(v, slots_since_finality)`. * Any [active validator](#dfn-active-validator) `v` not in `previous_epoch_head_attesters`, loses `base_inactivity_penalty(v, slots_since_finality)`.
* Any [validator](#dfn-validator) with `status == EXITED_WITH_PENALTY`, loses `3 * base_inactivity_penalty(v, slots_since_finality)`. * Any [validator](#dfn-validator) with `status == EXITED_WITH_PENALTY`, loses `3 * base_inactivity_penalty(v, slots_since_finality)`.
#### Attestation inclusion
For each `v` in `previous_epoch_attesters`, we determine the proposer `proposer_index = get_beacon_proposer_index(state, inclusion_slot(v))` and set `state.validator_registry[proposer_index].balance += base_reward(v) // INCLUDER_REWARD_QUOTIENT`. For each `v` in `previous_epoch_attesters`, we determine the proposer `proposer_index = get_beacon_proposer_index(state, inclusion_slot(v))` and set `state.validator_registry[proposer_index].balance += base_reward(v) // INCLUDER_REWARD_QUOTIENT`.
### Crosslink rewards and penalties #### Crosslinks
For every `shard_committee` in `state.shard_committees_at_slots[:EPOCH_LENGTH]` (i.e. the objects corresponding to the epoch before the current one), for each `v` in `[state.validator_registry[index] for index in shard_committee.committee]`, adjust balances as follows: For every `shard_committee` in `state.shard_committees_at_slots[:EPOCH_LENGTH]` (i.e. the objects corresponding to the epoch before the current one), for each `v` in `[state.validator_registry[index] for index in shard_committee.committee]`, adjust balances as follows: