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fix typo and specify something 

- committee_index is used as an input to compute_subnet_for_attestation but it's not previously defined
- attestation.data.committee_index is incorrect, the field is "index"
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fradamt 2022-06-27 14:20:25 +02:00 committed by GitHub
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specs/phase0/validator.md
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@ -260,7 +260,7 @@ A validator should plan for future assignments by noting their assigned attestat
slot and joining the committee index attestation subnet related to their committee assignment.
Specifically a validator should:
* Call `get_committee_assignment(state, next_epoch, validator_index)` when checking for next epoch assignments.
* Call `_, committee_index, _ = get_committee_assignment(state, next_epoch, validator_index)` when checking for next epoch assignments.
* Calculate the committees per slot for the next epoch: `committees_per_slot = get_committee_count_per_slot(state, next_epoch)`
* Calculate the subnet index: `subnet_id = compute_subnet_for_attestation(committees_per_slot, slot, committee_index)`
* Find peers of the pubsub topic `beacon_attestation_{subnet_id}`.
@ -510,7 +510,7 @@ Finally, the validator broadcasts `attestation` to the associated attestation su
The `subnet_id` for the `attestation` is calculated with:
- Let `committees_per_slot = get_committee_count_per_slot(state, attestation.data.target.epoch)`.
- Let `subnet_id = compute_subnet_for_attestation(committees_per_slot, attestation.data.slot, attestation.data.committee_index)`.
- Let `subnet_id = compute_subnet_for_attestation(committees_per_slot, attestation.data.slot, attestation.data.index)`.
```python
def compute_subnet_for_attestation(committees_per_slot: uint64, slot: Slot, committee_index: CommitteeIndex) -> uint64: