/**
* ZK UTXO Age Proof — POST /api/v1/zk/age-proof
* Prove "address has UTXOs older than N blocks" without revealing which UTXOs.
* Price: $0.03 USDC
*/
import { NextRequest, NextResponse } from 'next/server';
import { generateAgeProof } from '@/lib/zk';
import { isValidBitcoinAddress } from '@/lib/validation';
export async function POST(request: NextRequest) {
try {
const body = await request.json();
const { address, minBlocks } = body;
if (!address || !isValidBitcoinAddress(address)) {
return NextResponse.json({ success: false, error: 'Valid Bitcoin address required', code: 'INVALID_ADDRESS' }, { status: 400 });
}
if (typeof minBlocks !== 'number' || minBlocks <= 0) {
return NextResponse.json({ success: false, error: 'Positive minBlocks required', code: 'INVALID_MIN_BLOCKS' }, { status: 400 });
}
const result = await generateAgeProof({ address, minBlocks });
return NextResponse.json({
success: true,
proofType: 'utxo_age',
proof: result.proof,
publicInputs: result.publicInputs,
verified: result.verified,
proofTimeMs: result.proofTimeMs,
metadata: result.metadata,
_meta: {
description: 'ZK proof that address holds UTXOs older than the specified block threshold. Does not reveal which UTXOs qualify.',
verify: '/api/v1/zk/verify',
source: 'btcfi',
timestamp: new Date().toISOString(),
},
});
} catch (error) {
return NextResponse.json({
success: false, error: error instanceof Error ? error.message : 'Proof generation failed', code: 'ZK_ERROR',
}, { status: 500 });
}
}
