Mouna or Mona,Ambroise Queffélec, Yacine Derradji, Valéry Debov, Dalila Smaali-Dekdouk, Yasmina Cherrad-Benchefra, Le français en Algérie. Lexique et dynamique des langues, Duculot, 2002, , p.427. als
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 0x1a9b99c0764ac1216f09c09c3bb0f883281512dd14f38fbbf7f281adbcfd4317. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a262e97c-33fd-4877-8ea6-198c8888b3c2.json and https://artists.proofprofile.net/proofs/artist/a262e97c-33fd-4877-8ea6-198c8888b3c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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