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 0x3dec79a4b23b7bae9db8a6591f23407d33d82753ce411d2a8934fe3788afa9d3. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3d1824a-3f4b-4d22-b101-0d3a5c381bbc.json and https://artists.proofprofile.net/proofs/artist/c3d1824a-3f4b-4d22-b101-0d3a5c381bbc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Solomon, Hwv 67: Act III - Arrival of the Queen of Sheba
Sonata for Violin and Piano No. 4 in A Minor, Op. 23: I. Presto
Sonata for Violin and Piano No. 9 in A Major “Kreutzer”,III. Pre
Cantata, BWV147: Jesu, Joy of Man’s Desiring
Concerto For Two Instruments In C Minor, BWV1060 : II. Adagio
Double Concerto In D Minor, Bwv 1043: Ii. Largo Ma Non Tanto
Finlandia, Op26 #7: Hymn “Tu, Svētā Nakts