import { approveCall, burnCall, deriveNote, routeFor } from "@arcveil/bridge"; const route = routeFor(8453);            // Baseconst note = deriveNote(signature, 0);   // one signature derives every note // Two transactions from the source chain. Nothing is sent for you.approveCall({ route, amount: 25_000_000n });burnCall({  route,  amount: 25_000_000n,  gateway: VEIL_GATEWAY,  hook: { precommitment: note.precommitment, refund: yourArcAddress },});

import { contextFor, proveWithdrawal, withdrawalFor, witnessFor } from "@arcveil/bridge"; // The recipient and the fee are hashed into the proof, so the relayer that// submits it cannot redirect the money or pay itself more.const withdrawal = withdrawalFor(ENTRYPOINT, { recipient, feeRecipient, relayFeeBPS: 25n }); const proof = await proveWithdrawal(  {    note, change, label, existingValue, withdrawnValue,    stateWitness: witnessFor(commitments, myCommitment),    aspWitness: witnessFor(labels, label),    context: contextFor(withdrawal, SCOPE),  },  artifacts,   // withdraw.wasm and withdraw.zkey, fetched by `pnpm veil:artifacts`  groth16,     // snarkjs, loaded only when someone actually withdraws);

# What the relayer needs before you build the proof.curl https://arcveil-relay.workers.dev/quote # The proof and eight public numbers. Nothing that names a deposit.curl -X POST https://arcveil-relay.workers.dev/withdraw \  -H 'content-type: application/json' \  -d '{"recipient":"0x…","relayFeeBPS":"25","proof":{…}}'