1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf793f621bef79465ed130d92cb10af78fbc29e24b48f53d497e5df4d458d2542. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06d58c98-5e0b-423c-9035-4da32359f25e.json and https://artists.proofprofile.net/proofs/artist/06d58c98-5e0b-423c-9035-4da32359f25e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Star Académie 2009 : Variété du 1er mars 2009 (Live)
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