eth2.0-specs/specs/_features/eip7549/validator.md

Deneb -- Honest Validator

Table of contents

• Modifications in EIP-7549
  • Block proposal
    • Constructing the BeaconBlockBody
      • Attestations
  • Attesting
    • Construct attestation
  • Attestation aggregation
    • Construct aggregate

Modifications in EIP-7549

Block proposal

Constructing the BeaconBlockBody

Attestations

Attestations received from aggregators with disjoint committee_bits sets and equal AttestationData SHOULD be consolidated into a single Attestation object.

Attesting

Construct attestation

• Set attestation_data.index = 0.
• Let aggregation_bits be a Bitlist[MAX_VALIDATORS_PER_COMMITTEE] of length len(committee), where the bit of the index of the validator in the committee is set to 0b1.
• Set attestation.aggregation_bits = [aggregation_bits], a list of length 1
• Let committee_bits be a Bitvector[MAX_COMMITTEES_PER_SLOT], where the bit at the index associated with the validator's committee is set to 0b1
• Set attestation.committee_bits = committee_bits

Note: Calling get_attesting_indices(state, attestation) should return a list of length equal to 1, containing validator_index.

Attestation aggregation

Construct aggregate

• Set attestation_data.index = 0.
• Let aggregation_bits be a Bitlist[MAX_VALIDATORS_PER_COMMITTEE] of length len(committee), where each bit set from each individual attestation is set to 0b1.
• Set attestation.aggregation_bits = [aggregation_bits], a list of length 1
• Set attestation.committee_bits = committee_bits, where committee_bits has the same value as in each individual attestation