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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eaddb3dc108a833b57eb3472ed7475ea49a83486dcd9b1540ac7ecd1f78e37e. Chain 2 (Bitcoin): anchored in block 953988 (2026-06-16T18:23:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ebfbff5-8548-4ed2-846c-3fb0b06f9f00.json and https://artists.proofprofile.net/proofs/artist/2ebfbff5-8548-4ed2-846c-3fb0b06f9f00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Elhamdou lilah chouft dfinti beaaini ou chaft chta yasra baad dfina ouache yasra
Mohamed Belkhayati Vol 4 Duo Cheikh Omar