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 0xbaea5945e78f77563bd812c97c015bde658305d07ac5379561037c44ee2bfeec. 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/d20f8f8b-01ee-4b1b-9747-cfa5a2423e74.json and https://artists.proofprofile.net/proofs/artist/d20f8f8b-01ee-4b1b-9747-cfa5a2423e74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Backstreet Boys Goes Classical (A Symphony Tribute)
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