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 0xdb799faaf40c22280e88c1f78e8605de90dfbc659d3e60da84d534227de9f28d. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe38d396-d374-4eed-aaf8-da65620af521.json and https://artists.proofprofile.net/proofs/artist/fe38d396-d374-4eed-aaf8-da65620af521.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Top 85 Classics - The Very Best of Leo Reisman & His Orchestra Volume 2
There's a Boat Dats Leavin Soon for New York
Jazz Age Chronicles Vol. 6: The Song Hits of 1926
Jazz Age Chronicles Vol. 11: The Song Hits of 1928
Nipper's Greatest Hits - The 30's (Volume 2)
Puttin' on the Ritz (Puttin' on the Ritz)
Say it Isn´t so (The Songs of Irving Berlin Vol.3)