1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c98658542eea12846c9eb1dcb9da223f3dec35ed611d59011e895ea95eaf95. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bae9101e-0f1d-4e4f-a2eb-5c4d8b3e2c47.json and https://artists.proofprofile.net/proofs/artist/bae9101e-0f1d-4e4f-a2eb-5c4d8b3e2c47.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Reflexiones De Piano: Melodías Atemporales
Ritmos Relajantes: Melodías Reconfortantes De Piano
Odisea De La Música De Piano: Paisajes Sonoros Celestiales
Armonías Místicas: Viaje De Música De Piano
Piano Sereno: Tonos Relajantes Para El Estudio
Armonías De Piano Para Un Estado De Paz Y Calma
Armonía Nocturna: Piano Para Un Sueño Reparador
Little One's Raincoat Journey: Pianissimo Rainfall on Celeste Keys
Canciones De Piano Para Gatos: Melodías Reconfortantes
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3902e09ca41e453256fe513df53a69d22343039bbbb86294f1e42d0844a0eb52. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZZEB2465972.
Paz Con Piano: Sonidos Serenos Para Meditación
Melodías De Piano Esenciales Para La Relajación Nocturna
Sesiones Meditativas De Piano: Teclas Para La Quietud
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e7040d78136453dbc462df2ec4fd0cd5fd08dba8fad8ed22971b911309cf40. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBWUL2435380.
Melodías Del Crepúsculo: Sueños De Música De Piano
Ritmos Reales: Majestuosidad En La Música De Piano
Música De Piano Canino: Ritmos De Perros
Panorama De La Música De Piano: Horizontes Armónicos
Música De Piano: Melodías De La Primera Luz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02465c0128c6e33cad4930e911a81b0289c5ac148600a71fc0a12d39ed4cea89. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBRKQ2484866.
Música De Piano: Tonos Pacíficos De Meditación
Comodidad Para Mascotas: Sonidos De Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb408b2e7a9f02957db1c3c352fe40b0759da75b5722cbf131dd74fa34a1d2f3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBRKQ2463660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3d07dc906c27938f107dcbb85c1745cef7a86d8376b3808342f87cca9a5705. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBRKQ2463697.
Música De Piano: Viaje Melódico Nocturno
Música De Piano: Claves De Reinos Encantados
Melodías De Medianoche: Secretos Revelados Del Piano
Pulso De Música De Piano: Melodías Sentidas
Música De Piano: Sinfonía Iluminada Por El Sol
Serenata De Los Prados Bañados Por El Sol En El Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25785553b1d2e691f5d56d90576211466f28990053cd838b6173a1b78437ce93. 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/GBRKQ2432891.
Armonía Del Día Bañado Por El Sol En El Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2b6796f423c4698492c7b16c2a02e4168f0ae2ce74deb1d1786696ac425279. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/GBRKQ2432910.