Module polkadot_node_primitives::approval

Expand description

Types relevant for approval.

Structs

AssignmentCert
A certification of assignment.
BlockApprovalMeta
Metadata about a block which is now live in the approval protocol.
IndirectAssignmentCert
An assignment criterion which refers to the candidate under which the assignment is relevant by block hash.
IndirectSignedApprovalVote
A signed approval vote which references the candidate indirectly via the block.
RelayVRFStory
random bytes derived from the VRF submitted within the block by the block author as a credential and used as input to approval assignment criteria.
Slot
Unit type wrapper that represents a slot.
UnsafeVRFOutput
An unsafe VRF output. Provide BABE Epoch info to create a RelayVRFStory.
VRFOutput
VRF output type available for std environment, suitable for schnorrkel operations.
VRFProof
VRF proof type available for std environment, suitable for schnorrkel operations.

ApprovalError
Errors that can occur during the approvals protocol.
AssignmentCertKind
Different kinds of input data or criteria that can prove a validator’s assignment to check a particular parachain.

ASSIGNED_CORE_CONTEXT
A static context used for transcripts indicating assigned availability core.
CORE_RANDOMNESS_CONTEXT
A static context associated with producing randomness for a core.
RELAY_VRF_DELAY_CONTEXT
A static context used for all relay-vrf-modulo VRFs.
RELAY_VRF_MODULO_CONTEXT
A static context used for all relay-vrf-modulo VRFs.
RELAY_VRF_STORY_CONTEXT
A static context used to compute the Relay VRF story based on the VRF output included in the header-chain.
TRANCHE_RANDOMNESS_CONTEXT
A static context associated with producing randomness for a tranche.

DelayTranche
Validators assigning to check a particular candidate are split up into tranches. Earlier tranches of validators check first, with later tranches serving as backup.
Randomness
Schnorrkel randomness value. Same size as VRFOutput.