The open-source protocol for Zero-Knowledge Attestations. Anchoring Verifiable Credentials (W3C VC) to the European Blockchain Services Infrastructure (EBSI) and compliant ledgers.
Traditional compliance requires sharing raw data (passports, medical records), creating honeypots for hackers
Identity data is trapped in proprietary silos that don't communicate securely.
The user holds the keys. The verifier receives only a cryptographic "Yes/No" proof.
Holds sensitive data locally. Data never leaves the device
Generates a mathematical proof (zk-SNARK) satisfying the regulatory logic
Receives a verified "TRUE" statement. No raw data is ever exposed
W3C VCs:
The global standard for digital verifiable claims.
Decentralized Identifiers (DIDs):
Permanent, cryptographically secure identity anchors.
eIDAS 2.0 Bridge:
Fully compatible with the upcoming EU Digital Identity Wallet (EUDI).
EBSI Native:
Settlement aligned with the European Blockchain Services Infrastructure.
Trust4Layer provides SDKs and APIs for seamless integration of Zero-Knowledge proofs into existing enterprise stacks.
import { OpenZKA } from ‘@trustvestor/sdk’;
const proof = await OpenZKA.prove({
credential: wallet.get(‘EU_ID’),
predicate: “Over 18”
});
// Returns cryptographic proof: 0x8f2a…