Struct WitnessStatement 

pub struct WitnessStatement {
    pub format_version: u16,
    pub witness: String,
    pub home_node_id: String,
    pub snapshot: String,
    pub at_seq: u64,
    pub seen_at_seq: u64,
}

A seed’s word that it folded the home’s attestation snapshot (D80).

Its own object, under its own format_version, served and never written into anybody’s log: a seed that cosigned through the home would have to win a race against every new attestation, and a statement compared by ancestry does not care how many landed since.

Fields

format_version: u16

Version of this object’s shape; 1.

witness: String

The seed’s actor id: the hash of the key that signs this.

home_node_id: String

The home’s node actor id, which signed the attestation.

snapshot: String

The attestation’s id, choir_view::RefSnapshot::id, as hex.

at_seq: u64

The log position the attestation occupies.

seen_at_seq: u64

The last seq the seed had folded when it signed.

Implementations

impl WitnessStatement

pub fn canonical_bytes(&self) -> Vec<u8>

The bytes that are signed: compact JSON, fields in declaration order.

Written out rather than left to a map’s iteration order, because whether serde_json sorts object keys depends on a feature any crate in a build can switch on, and a signature over bytes that move with the build is a signature over nothing.

pub fn from_json(value: &Value) -> Option<Self>

Reads one back from its JSON form.

pub fn to_json(&self) -> Value

Its JSON form.

Trait Implementations

impl Clone for WitnessStatement

fn clone(&self) -> WitnessStatement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WitnessStatement

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

Formats the value using the given formatter.

impl PartialEq for WitnessStatement

fn eq(&self, other: &WitnessStatement) -> 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 WitnessStatement

impl StructuralPartialEq for WitnessStatement