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 0xa8919b3fd82002b72fe4973eb125f8d5e291cbb75a0e11e3db6043056e075750. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17fccdf0-6d62-4fca-a423-0bf744d4bfb9.json and https://artists.proofprofile.net/proofs/artist/17fccdf0-6d62-4fca-a423-0bf744d4bfb9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Un chewing-gum sur la tombe de Jim Morrison
J'veux me faire beau (Wy'zat Remix) part. II
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