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 0xf41e895d6e27ac69b3834503b47a85f0f4f1c507063a9b6f13dd12ef81309a56. Chain 2 (Bitcoin): anchored in block 953889 (2026-06-16T04:57:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d9c4d34-0d6d-4ea9-8fb8-cb0ccd88b57e.json and https://artists.proofprofile.net/proofs/artist/0d9c4d34-0d6d-4ea9-8fb8-cb0ccd88b57e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Música del no Esser: No. 1, Sol de Primavera
Música del no Esser: No. 2, Vent Transparent
Orquesta De Camara Del Auditorio De Zaragoza
Música del no Esser: No. 3, Blancor de Neu
Orquestra Simfònica de Barcelona i Nacional de Catalunya
Música del no Esser: No. 4, Núvols Brillants
Concert per a Piano i Conjunt Instrumental
Seco De Arpe: Piano Concerto. Concerto da Camera
Piano Concerto, Op. 72: I. Introducción. Maestoso. Allegro Scherzando - Live
Orquesta Sinfónica De La Región De Murcia
Piano Concerto, Op. 72: II. Mesto E Dolente - Live
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 0x06ed4144ac288602765a4e1e5397dc03e3132cdad6056afc390c2600a4f431f9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEPI82308960.
Piano Concerto, Op. 72: III. Maestoso. Allegro Scherzando - Live
Orquesta de Cámara del Auditorio de Zaragoza "Grupo Enigma"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600c987a0fef9743927b257e9709d89a4e5f3ee397a5abc5e641fe6d9745388c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEPI82308963.
Orquestra de Cámara del Auditorio de Zaragoza - Grupo Enigma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7839772bb378f6cbacba2dab4ffb0d8049ca44af8ae1d6bad2b4e815c573d44. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES8300514302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502937210b2c7c5a6cc0a6e784c8e8c0e08f0c68071bafda967b76d7c4ca4b0b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES8300514303.
Folk Songs: V. A la Femminisca - VI. La donna ideale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4343cba7af349f4128d265bca63bdb9a081aa32e1adb3a6daceae834d66245c6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES8300514306.
Folk Songs: X. Lo fiolaire - XI. Azerbaijan Love Song
Le Cygne. Piano Works by Chopin, Saint-Saëns & Satie
Nocturnes, Op. 55: No. 1, in F Minor - Upon Piano Roll
Goyescas (Suite), No.4: Quejas (o la maja y el ruiseñor)
Ein Traum, Op. 48 No. 6 - Upon Piano Roll
Danzas Españolas, Op. 47: No. 5, Española - Upon Piano Roll
La Creación Musical en Canarias 47 - Obras Para Guitarra
Cinco Piezas Para Guitarra: IV. Recitativo
En la sala de conciertos: Romanza sin palabras sobre un soneto de L. Siemens