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 0x9472bdeac37b9d0a88c0cc3bec995bffd7683188a40fc2218c0f539b2a9aa0b3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4acf15bf-3d35-46c5-8800-3c7d70180ac7.json and https://artists.proofprofile.net/proofs/artist/4acf15bf-3d35-46c5-8800-3c7d70180ac7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Danses & fêtes juives : Les plus belles danses
The Jewish Wedding (The Best of Jewish Songs and Music for Dance)
Hatikva (The Most Beautiful Jewish Songs and Melodies)