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 0xc9ef3ec46e1c64dc447f1946cfc9e7a7450bc665e75de7722a814c1313660ae0. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c32be0f-9d57-44f9-a4ed-4e3424fd0654.json and https://artists.proofprofile.net/proofs/artist/5c32be0f-9d57-44f9-a4ed-4e3424fd0654.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pieces for Lute in A Major: No. 1, Chaconne
Pieces for Lute in A Major: No. 2, Passepied
Pieces for Lute in A Major: No. 3, Rondeau
Pieces for Lute in A Major: No. 4, Phantasia
Pieces for Lute in A Major: No. 5, Pastorel
Pieces for Lute in D Major: No. 2, Campanella
Pieces for Lute in D Major: No. 3, Phantasia
Pieces for Lute in D Major: No. 4, Gavotte
Pieces for Lute in D Major: No. 5, Courante
Pieces for Lute in D Major: No. 6, Sarabande & Double
A Lute by Sixtus Rauwolf: French & German Baroque Music
Lindberg, Jakob: Baroque Music for Lute and Guitar
Caminando: Musiques Renaissance et Baroque (Renaissance and Baroque Music)