.CoreServeChallengeV1�PCoreServeChallengeV1�(CoreServeChallengeV1 {
version: u8 = 1
corePublicKey: 32 bytes
fork: u64
length: u64
signedHeadHash: 32 bytes
blockIndices: sorted distinct array[1..16] of u64 below length
clientNonce: 32 bytes
admission: optional AdmissionV1
} AdmissionV1