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 0x001da16df420be04f29749221a0c3582086c61680373fd300d2d07fc88a46cc9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aea2e6a5-43c1-4b77-a74b-48f812f4c428.json and https://artists.proofprofile.net/proofs/artist/aea2e6a5-43c1-4b77-a74b-48f812f4c428.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Missa Salisburgensis - Salzburger Domfestmesse: Kyrie
Missa Salisburgensis - Salzburger Domfestmesse: Gloria
Missa Salisburgensis - Salzburger Domfestmesse: Credo
Missa Salisburgensis - Salzburger Domfestmesse: Sanctus/Benedictus
Missa Salisburgensis - Salzburger Domfestmesse: Agnus Dei
Benevolo: Missa Azzolina / Magnificat / Dixit Dominus
Benevoli & Pitoni: Römische Mehrstimmigkeit
Orazio Benevoli: Missa Tu es Petrus - Kyrie
Orazio Benevoli: Missa Benevola: III. Kyrie II (Mule)
Cappella Musicale della Cattedrale di Verona
Charpentier: Messe à quatre chœurs - Carnets de voyage d'Italie
Agnus Dei - Classical Music for Reflection and Meditation