Struct ChainHash 

pub struct ChainHash(/* private fields */);

A 32-byte chain link value: either a genesis seed or the output of chain_next.

Not secret (it is stored on disk alongside the content it authenticates), so Debug and hex encode/decode are unrestricted. Equality compares via blake3::Hash, which is constant-time — the same idiom already used for the promise resolver-token check and verify_control_hmac, so a forged stored hash reveals no timing signal.

Implementations

impl ChainHash

pub fn to_hex(self) -> String

Render as a lowercase hex string for JSONL storage.

pub fn from_hex(s: &str) -> Result<Self, ChainError>

Parse a lowercase (or uppercase) hex string produced by Self::to_hex.

Errors

Returns ChainError::MalformedHash if s is not exactly 64 hex characters.

Trait Implementations

impl Clone for ChainHash

fn clone(&self) -> ChainHash

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ChainHash

impl Debug for ChainHash

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

Formats the value using the given formatter.

impl Eq for ChainHash

impl PartialEq for ChainHash

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

Equality operator ==.

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

Inequality operator !=.