Irreversible may refer to: Irreversible process, in thermodynamics, a process that is not reversible Irréversible, 2002 French film Irréversible (soundtrack), soundtrack to the film Irréversible An a
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb175bf707d7d3119f1f470a4f4bdd6094998625331a2d2d039b203a3c5c8f901. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0faacbc6-8bf0-4f77-adae-02fcecf9bae6.json and https://artists.proofprofile.net/proofs/artist/0faacbc6-8bf0-4f77-adae-02fcecf9bae6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).