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 0xdbecc9617e4adf681977ec4aa55448943bcc05bf3aef497e27d455f61bde4dc0. 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/ffb95d5a-d090-4b0d-8705-ae978f3bb732.json and https://artists.proofprofile.net/proofs/artist/ffb95d5a-d090-4b0d-8705-ae978f3bb732.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Canción del Color Amarillo (Canciones Infantiles)
Canción del Color Amarillo - Canciones Infantiles
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 0x8228a126bfaa9ed66d966e83a95c3177f61c0b07a12faf666431c186fe777c37. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QM6P41733600.
Canción del Color Azul (Canciones Infantiles)
Canción del Color Azul - Canciones Infantiles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27a2fbaa9bbb07efc3e2ba97bbd136e82b6b5b115c62e87f267dd0eaaa9a2c4. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QM6P41733557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946825d7baf55f6a5ef769a90599c5c75df3b76765615ee5ce872a0da32d71b8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM6P41733680.
Creo en Mí (Canción Antibullying, Matoneo)
Me Lavo las Manos y el Coronavirus Espanto
La Canción del Baño (Llegó la Hora de Bañarse)
Canción para Cuidar el Aire (Canciones Infantiles)
Es Hora de Ir a Dormir (A Dormir, Canciones Infantiles)
Canción para Lavarse las Manos (Vamos a Lavarnos las Manos, Canciones Infantiles)
Canción Para Dar las Gracias y Decir por Favor
Cabeza Hombros Rodillas y Pies (Canción)
¿Estrellita Dónde Estás? (Canciones Infantiles)
Compartir Es Divertido (Canciones Infantiles)
Corazón de Cristal (Canciones Infantiles)
El Profesor Muelitas (Canciones Infantiles)
La Liebre y la Tortuga (Cuentos Infantiles)
Un Milagro de Vida (Canciones Infantiles)
Twinkle Twinkle Little Star (Nursery Rhymes)
Especial de Halloween (Canciones Infantiles)
Mi Carita Redondita (Canciones Infantiles)
Los Colores del Semáforo (Canciones Infantiles)
Medios de Transporte (Canción para Aprender Inglés)
El Círculo Es Redondo (Canción del Círculo)
En Cuarentena Aprendo Cantando (Canciones Infantiles)
No Importa el Color Todos Somos Iguales (Canciones Infantiles)
Canción de los Cinco Sentidos (Vista - Olfato - Tacto - Gusto - Oido)
Partes del Cuerpo (Canciones Infantiles)
Pa Pe Pi Po Pu la Letra P (Las Sílabas Con la Letra P, Canciones Infantiles)
Mundo de los Juguetes (Canciones Infantiles)
Aprendiendo las Vocales (Aeiou Canciones Infantiles)
Gaby Gaby ¿Dónde Estás? (Canciones Infantiles)
Canción para Aprender Inglés (Canciones Infantiles)
Juguemos a la Rueda (Canciones Infantiles)
El Circo de los Esqueletos (Canciones Infantiles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab0f9abc36c3fd14afa292b5bf828236a5e8229f62be1e6357f649b21749db9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM6N22302804.
Los animales de la selva (Canciones Infantiles)
Los animales de la selva - Canciones Infantiles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5679dc57411e674f75757c86de01a4e498b50b37ffc81cb2ff6a62c252799be. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FRX762418097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa18146207587daad72467cfa4a5f159c174944b36e8e4cd06ad877c93db2350. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX452511310.