UUIDv7 generation and validation for Artefact node identity.
The key public function for consumers is from_name/1 — derive a stable,
deterministic UUID from any string identifier. Use it when importing from
external sources (Mermaid, Cypher, JSON) to ensure the same node always
gets the same UUID across repeated imports.
Summary
Functions
Deterministic UUIDv7-shaped identifier derived from a name string.
Generate a UUIDv7 string. Time-ordered; lower value = earlier creation.
Compare two UUIDv7 strings. Returns the lower (earlier) of the two.
Returns true when value is a valid UUIDv7 string (lowercase hex).
Functions
Deterministic UUIDv7-shaped identifier derived from a name string.
Uses SHA-256 of the name in place of random bytes, with version and variant
bits forced identically to generate_v7/0. The timestamp field is filled from
the hash rather than the clock, so the result is not time-ordered, but it is
stable: the same name always produces the same UUID. Passes valid?/1.
Generate a UUIDv7 string. Time-ordered; lower value = earlier creation.
Compare two UUIDv7 strings. Returns the lower (earlier) of the two.
Returns true when value is a valid UUIDv7 string (lowercase hex).