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 0xfbeedd6f6be33170f18f1b0b35256369c3c69c3ea992f6e7e2853247d24c85d3. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2746ebe3-2690-44bd-92b2-d7b6b2dcd4dd.json and https://artists.proofprofile.net/proofs/artist/2746ebe3-2690-44bd-92b2-d7b6b2dcd4dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Hang Drum Track - T_Mo Balearica Remix
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Junior Eurovision Songcontest Participants 2012