zk-Identity Core

Overview

zk-Identity Core enables privacy-preserving identity verification for Web3 applications. By leveraging zero-knowledge proofs, users can prove their identity attributes without revealing personal data on-chain.

Built for DeFi protocols, NFT platforms, and any application requiring KYC/AML compliance while maintaining user privacy. The system generates cryptographic proofs that can be verified by smart contracts in real-time.

Key Features

• Anonymous Verification — Prove identity attributes without revealing personal data. Users share only what they choose to disclose.
• On-Chain Settlement — Direct integration with smart contracts. Verification proofs are submitted and verified on-chain.
• GDPR Compliance — Data minimization built into the protocol. No personal data stored on-chain.
• Multi-Chain Support — Ethereum, Polygon, Avalanche, and more. Deploy once, reach everywhere.
• 50ms Verification — Blazing fast proof generation. Users experience instant verification.

Quick Integration

import { ZKIdentity, ProofRequest } from '@gitdigital/identity-core';

const identity = new ZKIdentity({
  apiKey: process.env.GITDIGITAL_API_KEY
});

// Create a verification proof request
const proofRequest: ProofRequest = {
  attributes: ['age_over_18', 'country_resident'],
  verifier: '0x742d35Cc6634C0532925a3b844Bc9e7595f',
  nonce: BigInt(1234567890)
};

const proof = await identity.generateProof(proofRequest);
// Returns ZK proof that can be verified on-chain
console.log(proof.proof);

API Reference

{
  "user_id": "usr_abc123",
  "attributes": ["age_over_18", "kyc_verified"],
  "callback_url": "https://yourapp.com/webhook"
}

{
  "verification_id": "ver_xyz789",
  "circuit": "age_verification_v2",
  "public_signals": [...]
}

{
  "proof": "0x...",
  "contract_address": "0x742d...",
  "chain": "ethereum"
}

Changelog