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 0xb7c9a54d2f533b8a96d844f3ddd02e81e0148e2f7f19c93b77c561ade1a43382. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80a88a18-f61b-4cce-ab8a-abc74987495b.json and https://artists.proofprofile.net/proofs/artist/80a88a18-f61b-4cce-ab8a-abc74987495b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Festival - Live - German Jazz Festival, October 12th, 1980
Tiger, Panther & Co. - Live - German Jazz Festival, October 12th, 1980
Jessica's Dream - Live - German Jazz Festival, October 12th, 1980
Last Not Least - Live - German Jazz Festival, October 12th, 1980
Half of Life, Pt. 1 - Retrospection Three
Half of Life, Pt. 2 - Retrospection Three
Half of Life (Retrospection Three), Pt. 1
Half of Life (Retrospection Three), Pt. 2
Manhattan Lounge: Classic New York Late Night Cocktail Jazz