Module note 

Note commitments - a faithful port of note.ts’s Poseidon derivations.

Note the deliberate input ordering: ownerHash and nullifier hash the same three values in a different order.

Functions

note_id

id = Poseidon([ownerHash, amount, token]).

nullifier

nullifier = Poseidon([sharedSecret, pub.x, pub.y]).

owner_hash

ownerHash = Poseidon([pub.x, pub.y, sharedSecret]).