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 0x0f4903acff128ca8f66b396d51fd3285881c12579612a4c04c4b0f20b797582d. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bb8a2b3-c80b-4bda-88eb-ce486b1abea6.json and https://artists.proofprofile.net/proofs/artist/3bb8a2b3-c80b-4bda-88eb-ce486b1abea6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O Sole Mio - Classical & Modern Music Cross Over (Remixe)
One Moment - Radio Classical Rock-Pop Version
Back in Your Arms Again - Classical Beat Version
I Give It All to You - Classical Beat Version
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1eed102dfb833a2aed963b57f8958625405d68e7a77d5dc3835050956d58dc. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZ650709347.
El Ultimo Trémolo (Una Limosnita por Amor de Dios)
Bach: Italian Concerto BWV 971: 1. Without tempo indication
Bach: Italian Concerto BWV 971: 2. Andante
Bach: Italian Concerto BWV 971: 3. Presto
Sor: Les Deux Amis op. 41 1. Introduction (Andante largo)
Sor: Les Deux Amis op. 41 2. Theme (Andantino)
Sor: Les Deux Amis op. 41 3. Variation I
Sor: Les Deux Amis op. 41 4. Variation II
Sor: Les Deux Amis op. 41 5. Variation III
Sor: Les Deux Amis op. 41 6. Variation IV
Sor: Les Deux Amis op. 41 7. Variation V
Tedesco: Sonatina Canonica op. 196 1. Mosso, grazioso e leggero
Tedesco: Sonatina Canonica op. 196 2. Tempo di Siciliane (Andantino)
Tedesco: Sonatina Canonica op. 196 3. Fandango en Rondeau (Ritmico e deciso)
Rodrigo: Tonadilla 1. Allegro ma non troppo
Rodrigo: Tonadilla 2. Minueto Pomposo (Andante)