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Merge pull request #558 from decanus/patch-14 

`shard` -> `attestation.data.shard`
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Danny Ryan 2019-02-02 08:49:28 -08:00 committed by GitHub
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specs/core/0_beacon-chain.md
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@ -1733,7 +1733,7 @@ For each `attestation` in `block.body.attestations`:
* Verify that `attestation.data.slot <= state.slot - MIN_ATTESTATION_INCLUSION_DELAY < attestation.data.slot + EPOCH_LENGTH`.
* Verify that `attestation.data.justified_epoch` is equal to `state.justified_epoch if attestation.data.slot >= get_epoch_start_slot(get_current_epoch(state)) else state.previous_justified_epoch`.
* Verify that `attestation.data.justified_block_root` is equal to `get_block_root(state, get_epoch_start_slot(attestation.data.justified_epoch))`.
* Verify that either `attestation.data.latest_crosslink_root` or `attestation.data.shard_block_root` equals `state.latest_crosslinks[shard].shard_block_root`.
* Verify that either `attestation.data.latest_crosslink_root` or `attestation.data.shard_block_root` equals `state.latest_crosslinks[attestation.data.shard].shard_block_root`.
* Verify bitfields and aggregate signature:
```python