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 0x1a82acaf8c44cb0d9dcdb11467c812315e8f7e7ee6110235aa4f23d12f19be87. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87bbbe78-63a4-46d3-aaa3-ffdfe10b4a22.json and https://artists.proofprofile.net/proofs/artist/87bbbe78-63a4-46d3-aaa3-ffdfe10b4a22.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Figaro, Op. 320: Figaro-Polka francaise, Op. 320
Der Zigeunerbaron: Einzugs-Marsch (From Der Zigeunerbaron)
Die Fledermaus: Bohmisch-Polka (from Die Fledermaus)
The Danube Waves: Valurile Dunarii (The Danube Waves)
101 Classics - The Best Loved Classical Melodies
The Danube Waves: Valurile Dunarii (the Danube Waves)
The Great Waltzes - The Essential Collection
40 of the Best: Classical Music to Drive With
Listen, Learn and Grow: Playtime Fun and Games
Radetzky March, Op. 228 : Radetsky March, Op. 228
Panda Classics - Issue Nos. 1-3 (3Cd Box Set)