Paste a receipt hash. Watch it verify.

Every H33 Vault action emits a signed cryptographic receipt. This viewer walks through verification client-side — sample hashes today, real receipts when the public backend ships.

● Demo · live ○ Real-receipt lookup coming next

Every receipt has this shape
authority_hash · policy_hash · evidence_hash
preconditions · decision_hash · pq_signature
— all bound to the action at signing time.

In 5 sentences

What is itInteractive cryptographic receipt verifier. Paste a receipt hash, watch the verification steps run client-side.

Why it mattersThe industrial audit log pattern cannot answer 'was this decision valid.' A receipt with authority · policy · evidence · preconditions hashes can.

When to useWhen you have a real H33 receipt to verify (once the live backend ships) or when you want to see the algorithm run on sample data (today).

How it differsClient-side algorithm today (demo mode with sample hashes). Same algorithm will run against the real audit log when the public backend ships next.

Evidence14 capabilities emit signed receipts in production today. The demo hashes here mirror real production receipt shape. Public /verify/<hash>/ backend ships next.

Try it

Paste a receipt hash · or click a sample.

Samples:

✓ Verified

—

Demo mode. This viewer runs client-side with pre-baked sample receipts. Real-receipt lookup against the Vault's audit log ships when the public backend endpoint lands. The verification steps shown here mirror the real algorithm.

What emits receipts today

14 Vault capabilities · signed at the moment of action

Payment Authorization Authority Delegation Audit Logs Document Notarization Decision Integrity AI Agent Authorization

Trust status

Interactive demo runs today. Real backend ships next.

Same algorithm · demo hashes now, real lookup soon.

Runs today

Vault workflows running in production
Cryptographic receipts emitted per action
Immutable audit trail · Object-Locked
Auth1 · Wallet · Document · Audit APIs
Post-quantum primitives (Dilithium + Kyber)
Benchmark v12 · 2,293,766 auth/sec

Coming next

Public /verify// receipt viewer
Public /replay// decision viewer
docs.h33.you developer documentation
SOC 2 Type II Certified
Payment Requests + Rewards adapters

Every claim, an artifact.

Start free See the proof surface