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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc510248df1e22082cabb04817591ccaae9243ffd5847b6bd80dc93561f7958e4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/592c25be-19c0-4214-aa57-cedfa4d565ff.json and https://artists.proofprofile.net/proofs/artist/592c25be-19c0-4214-aa57-cedfa4d565ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Big Band- The World's Greatest Jazz Collection, Vol. 65
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Big Band- The World's Greatest Jazz Collection, Vol. 73
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Let's Do It (Let's Fall in Love) - Ver. 1
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Sing, Sing, Sing (Intro. Christopher Columbus) Part 1 & 2