Struct SignableLink 

pub struct SignableLink<'a> {
    pub src_id: &'a str,
    pub dst_id: &'a str,
    pub relation: &'a str,
    pub observed_by: Option<&'a str>,
    pub valid_from: Option<&'a str>,
    pub valid_until: Option<&'a str>,
}

The six fields the link signature commits to.

Decoupled from crate::models::MemoryLink on purpose: that struct is the public wire shape for get_links (4 columns), while the signed bundle includes the temporal-validity columns (valid_from, valid_until, observed_by) added in v0.6.3 schema v15. Keeping SignableLink separate means H3’s verifier can deserialize directly from a row without dragging the entire MemoryLink shape — and it gives the canonical encoder a single, audited shape to commit to.

Fields

src_id: &'a str

dst_id: &'a str

relation: &'a str

observed_by: Option<&'a str>

Agent that observed / asserted this link. None when the link was created by an unidentified caller (rare on the signing path — the keypair’s owner is normally the observer).

valid_from: Option<&'a str>

RFC3339 instant the link became true. Always present on writes produced by db::create_link (set to “now” at insert time).

valid_until: Option<&'a str>

RFC3339 instant the link was invalidated, or None if still valid. Almost always None at insert time; set later by db::invalidate_link.

Trait Implementations

impl<'a> Clone for SignableLink<'a>

fn clone(&self) -> SignableLink<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for SignableLink<'a>

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

Formats the value using the given formatter.

impl<'a> Eq for SignableLink<'a>

impl<'a> PartialEq for SignableLink<'a>

fn eq(&self, other: &SignableLink<'a>) -> 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<'a> StructuralPartialEq for SignableLink<'a>