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 0xe9c27ceb161204c6d6ed5fcd5c6fa85fbed5e31c1aec55ff5a21fb084cb970c8. Chain 2 (Bitcoin): anchored in block 953812 (2026-06-15T17:06:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6381e9a-33d0-4b12-a06e-d47687a494c9.json and https://artists.proofprofile.net/proofs/artist/f6381e9a-33d0-4b12-a06e-d47687a494c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We Are Katermukke: Marcus Meinhardt (DJ Mix)
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