pub const DERIVATION_V1: &str = "rite-kdf/v1";Expand description
Frozen-scheme tag recorded with the machine seed. It pins the entire
construction (Extract/Expand, the ratchet rule, the info/path byte
encodings), not merely the hash. A verifier treats it as a selector among
known-good schemes it already trusts and rejects any value it does not
recognise, it is never an instruction to trust an arbitrary algorithm.