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Update specs/validator/0_beacon-chain-validator.md 

Co-Authored-By: djrtwo <dannyjryan@gmail.com>
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Hsiao-Wei Wang 2019-01-23 17:16:04 -06:00 committed by GitHub
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@ -310,7 +310,7 @@ Set `attestation.data = attestation_data` where `attestation_data` is the `Attes
* Let `aggregation_bitfield` be a byte array filled with zeros of length `(len(committee) + 7) // 8`.
* Let `index_into_committee` be the index into the validator's `committee` at which `validator_index` is located.
* Set `aggregation_bitfield[index_into_committee // 8] |= 2 ** (index_into_committee % 8)`.
* Set `attestation.participation_bitfield = participation_bitfield`.
* Set `attestation.aggregation_bitfield = aggregation_bitfield`.
_Note_: Calling `get_attestation_participants(state, attestation.data, attestation.participation_bitfield)` should return `[validator_index]`.