PQ Verifiable Archive

Post-quantum tamper evidence for signed documents

Contracts archived today must verify in 2040. Receipts here are signed with ML-DSA-65 (NIST FIPS-204) instead of RSA or ECDSA.

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1
Upload document
Drop a contract PDF
Click or drop a .pdf
Use sample contract
2
Signing ceremony
Signing Ceremony
Simulated. Signers entered here are recorded as requester-asserted: the receipt proves they were claimed, not that these people signed. Only envelopes received via the DocuSign Connect webhook carry DocuSign-reported signers.
3
Anchor to public ledger
Anchoring to Algorand
Verify Independently

Drop any proof bundle and original PDF. Every check runs in your browser — after this page loads, the only network requests go to public Algorand infrastructure. For full independence, use the open-source CLI verifier: npx tsx verifier/verify.ts --bundle bundle.json --pdf doc.pdf

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