RFC 3161 Cryptographic Timestamp Proof

International Registry of Traditional Science — Independent Verification Page
TSA-VERIFIED HASH: MATCH SHA-256 RFC 3161

Record Identity

Registry ID IRTS-2026-000001
Title IRTS System Architecture — Sovereign Traditional Knowledge Defensive Disclosure Registry (IRTS-IPR-DECL-20260513-001)
Filing Date 20260513

Cryptographic Proof

SHA-256 Content Hash 5bdf4d73dc52184a4bfe594c8cb94ad7c63ba9c3fc7911e15c56f6e1978994f0
Hash Integrity MATCH — live content hash equals stored proof hash
TSR (RFC 3161 Response) MIISFTADAgEAMIISDAYJKoZIhvcNAQcCoIIR/TCCEfkCAQMxDzANBglghkgBZQMEAgMFADCCAYYGCyqGSIb3DQEJEAEEoIIBdQSCAXEwggFtAgEBBgQqAwQB… Download full proof (JSON) ↗
TSA Authority https://freetsa.org/tsr Submitted: 2026-05-22T10:49:16.775089+00:00

Independent Verification Steps

  1. Retrieve the record via /oai?verb=GetRecord
  2. Compute SHA-256 of the canonical JSON — expected: 5bdf4d73dc52184a…
  3. Download the full JSON proof and extract tsa_response_b64
  4. Verify with OpenSSL: openssl ts -verify -data record.json -in proof.tsr -CAfile cacert.pem

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