/**
* ZK Trust Proof Example — BTCFi SDK
*
* Agent A proves to Agent B that a Bitcoin address has balance >= threshold
* without revealing the exact balance. Agent B verifies the proof independently.
*/
import BTCFi from '@aiindigo/btcfi';
const btcfi = new BTCFi({
paymentNetwork: 'base',
evmPrivateKey: process.env.EVM_PRIVATE_KEY,
});
async function main() {
const address = 'bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq';
// Agent A: Generate balance proof
console.log('Generating balance proof...');
const proof = await btcfi.generateBalanceProof(address, 100000, 'sats');
console.log(`Proof type: ${proof.proofType}`);
console.log(`Meets threshold: ${proof.verified}`);
console.log(`Proof time: ${proof.proofTimeMs}ms`);
// Agent A sends { proof, publicInputs, proofType } to Agent B
const payload = {
proofType: proof.proofType,
proof: proof.proof,
publicInputs: proof.publicInputs,
};
// Agent B: Verify the proof (no need to access the address)
console.log('\nVerifying proof...');
const verification = await btcfi.verifyProof(
payload.proofType,
payload.proof as any,
payload.publicInputs
);
console.log(`Verified: ${verification.verified}`);
console.log(`Checks: ${verification.checks.join(', ')}`);
// UTXO age proof — prove address has old coins
console.log('\nGenerating UTXO age proof...');
const ageProof = await btcfi.generateAgeProof(address, 1000);
console.log(`Has UTXOs >= 1000 blocks old: ${ageProof.verified}`);
console.log(`Qualifying UTXOs: ${(ageProof.metadata as any).qualifyingCount}`);
}
main().catch(console.error);
