
REGISTRY
Each reference identifies the registry state of an instrument held by FACTOS. The reference is stable and is written once into the instrument that points at it. The record it describes is versioned and anchored, and changes without the reference ever changing.
Every record states what it is, what registry state FACTOS publishes for it, the reference of the evidence package, and the on-chain anchors that let a third party check the claim without asking us.