Class RecentHistory

constructor

• new RecentHistory(
      hasher: MmrHasher<KeccakHash>,
      state: RecentHistoryState,
  ): RecentHistory

  Parameters

  • hasher: MmrHasher<KeccakHash>
  • state: RecentHistoryState

  Returns RecentHistory

Readonlystate

partialTransition

• partialTransition(input: RecentHistoryPartialInput): RecentHistoryStateUpdate

  During the accumulation stage, a value with the partial transition of this state is provided which contains the update for the newly-known roots of the parent block.

  β_H† ≡ β_H except β_H†[|β_H| − 1]_s = H_r

  https://graypaper.fluffylabs.dev/#/1c979cb/0f55020f5502?v=0.7.1

  Parameters

  • input: RecentHistoryPartialInput

  Returns RecentHistoryStateUpdate

transition

• transition(input: RecentHistoryInput): RecentHistoryStateUpdate

  β′ = β_H† ++ (p, h: H(H), s: H_0, b: M_r(β′_B)) where p = { (((g_r)_s)_p ↦ ((g_r)_s)_e) | g ∈ EG }

  https://graypaper.fluffylabs.dev/#/1c979cb/0fd2020fd202?v=0.7.1

  Parameters

  • input: RecentHistoryInput

  Returns RecentHistoryStateUpdate