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 0x4d1771758d6926925cb3dfcc04d78b677d05471aa9bc4682c69254f6e0062545. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b140d6c-b94e-477b-8203-f6e14446cf11.json and https://artists.proofprofile.net/proofs/artist/4b140d6c-b94e-477b-8203-f6e14446cf11.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mascagni: Cavalleria rusticana: Sancta Maria (After "Intermezzo" from Cavalleria rusticana)
Schubert: Ave Maria, 'Ellens Gesang III' D839
Traditional: Canticle Of The Creatures: Part 1
Traditional: Canticle Of The Creatures: Part 2
Sancta Maria (After "Intermezzo" from Cavalleria rusticana)
Traditional: Veni, Veni Emmanuel (O come, O come Emmanuel)
Gounod, J.S. Bach: Ave Maria, CG 89a (Arr. from Bach's Prelude No. 1, BWV 846)
Handel: Serse, HWV 40 / Act 1: O Mio Signor (After "Ombra mai fù" from Serse, HWV 40)
L'Arlésienne Suite No. 2: II. Agnus Dei (Arr. Moretti for Tenor & Orchestra)
Herz und Mund und Tat und Leben, Cantata BWV 147: X. Jesus bleibet meine Freude
Serse, HWV 40 / Act 1: O Mio Signor (After "Ombra mai fù" from Serse, HWV 40)
Cavalleria rusticana: Sancta Maria (After "Intermezzo" from Cavalleria rusticana)
Herz und Mund und Tat und Leben, Cantata BWV 147: Jesus bleibet meine Freude
Ave Maria, CG 89a (Arr. from Bach's Prelude No. 1, BWV 846)
Veni, Veni Emmanuel (O come, O come Emmanuel)