★ Public verifier · no login required

Verify a4 Qubitsattestation

Drop any attestation JSON below. The Merkle inclusion proof is recomputed in your browser per RFC 6962 §2.1.1 and cross-checked against the published root on trust.4qubits.com. Tamper-evident, regulator-shareable, and zero trust in this page.

Drop a 4Qubits attestation JSON

or click to browse — Merkle proof + ML-DSA-87 signature run entirely in your browser

Or paste raw JSON

Step 1

Drop the JSON

Anything Attest exports — a single ledger entry, an evidence bundle, or a board-ready packet.

Step 2

Recompute the Merkle root

Your browser walks the audit path and rebuilds the root locally. The portal can't lie about this; you don't need to trust it.

Step 3

Cross-check + verify ML-DSA-87

The recomputed root is matched against the per-tenant published root, then the ML-DSA-87 (FIPS 204) signature is verified in your browser via @noble/post-quantum. No backend trust required.