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fix minor errors per #628

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Danny Ryan 2019-02-21 15:18:41 -07:00
parent 0f222171ca
commit d31aeacd3c
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1 changed files with 2 additions and 2 deletions
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specs/validator/0_beacon-chain-validator.md
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@ -263,7 +263,7 @@ Set `attestation_data.beacon_block_root = hash_tree_root(head)` where `head` is
Set `attestation_data.epoch_boundary_root = hash_tree_root(epoch_boundary)` where `epoch_boundary` is the block at the most recent epoch boundary in the chain defined by `head` -- i.e. the `BeaconBlock` where `block.slot == get_epoch_start_slot(slot_to_epoch(head.slot))`.
_Note:_ This can be looked up in the state using:
* Let `epoch_start_slot = get_epoch_start_slot(slot_to_epoch(head.slot))`. `get_block_root(state, get_epoch_start_slot(slot_to_epoch(head.slot)))`.
* Let `epoch_start_slot = get_epoch_start_slot(slot_to_epoch(head.slot))`.
* Set `epoch_boundary_root = hash_tree_root(head) if epoch_start_slot == head.slot else get_block_root(state, epoch_start_slot)`.
##### Shard block root
@ -282,7 +282,7 @@ Set `attestation_data.justified_epoch = state.justified_epoch` where `state` is
##### Justified block root
Set `attestation_data.justified_block_root = hash_tree_root(justified_block)` where `justified_block` is the block at `state.justified_epoch` in the chain defined by `head`.
Set `attestation_data.justified_block_root = hash_tree_root(justified_block)` where `justified_block` is the block at the slot `get_epoch_start_slot(state.justified_epoch)` in the chain defined by `head`.
_Note:_ This can be looked up in the state using `get_block_root(state, justified_epoch)`.