Circuits

Both Hinkal circuits—SwapperM and SwapperMHA—are built to support privacy‑preserving, multi‑token transactions in a UTXO‑style model. Hinkal treats each token deposit as a commitment, a cryptographic hash that conceals the amount, token address, stealth public key and timestamp. Spending a commitment requires revealing a nullifier (a hash of the commitment and a signature) that proves ownership without exposing the spender’s secret key or linking the spend to other transactions. The circuits allow a user to aggregate multiple inputs and produce multiple outputs across several ERC‑20 tokens, all within a single zero‑knowledge proof.