Enum LineageBinding 

pub enum LineageBinding {
    ChainPosition(u64),
    PreviousHash(String),
}

Lineage binding for the preimage (ADR 0014 §Replay: “preimage MUST include chain_position or previous_hash”).

JSONL appends prefer PreviousSignature (Option A from ADR 0010 §2); CLI attestation records that don’t have a previous signature on hand at sign time use ChainPosition (Option B-style monotonic counter).

Variants

ChainPosition(u64)

Monotonic chain position counter (u64).

PreviousHash(String)

Hex-encoded previous-row hash (32-byte BLAKE3 → 64 hex chars).

Implementations

impl LineageBinding

pub const fn tag(&self) -> u8

Tag byte distinguishing the two variants in the canonical preimage. 0x01 for ChainPosition, 0x02 for PreviousHash. The tag is included so a captured signature for ChainPosition(10) cannot be re-purposed under PreviousHash("0a…") even if their canonical byte forms happened to coincide.

Trait Implementations

impl Clone for LineageBinding

fn clone(&self) -> LineageBinding

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LineageBinding

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for LineageBinding

fn eq(&self, other: &LineageBinding) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for LineageBinding

impl StructuralPartialEq for LineageBinding