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 0xe689eca7b2efb1964a6410634187de9ffdd879ec3366d87f50b44104d3e13f74. 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/d0a6631f-c467-4077-a342-c556ad670338.json and https://artists.proofprofile.net/proofs/artist/d0a6631f-c467-4077-a342-c556ad670338.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xf9d09be5d8601ff87482a86dbb5b950659caf3e2d9ffe5b7fef9ce44c703f0e8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USWD11676495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c03a7cfa9604383f46900130abd0c30b8ef8939660b0cc712130ce20f97e85e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USWD11676497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3cde1ab8ed195595bc708638c152312ff50b963f6e9ea4d22686e451bda3b3. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/USWD11676496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d36c227077e8c00fa11b610f7aaf29e1dc4081ba32d1b528ea9d2f9990dc9b2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USWD11676493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98433a4842104280a8fe00057a023395798a34d73c59e3ee0fb6049006acf430. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USWD11676499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ce75337593510a316c1ccb695bdbe65e7acbf8856ccf24ba94a5aac5272e74. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USWD11676501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d22d4c2a424500392b8988efa1906e9f4fe0ff2e9f801ae686eabfb2ee2b566. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USWD11779687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2a20c997cd02dac945ca514dcec0e5a6a2e42512a57815bb85fb499efa6f0e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USWD11779688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7a18537c84ae81a6adffb2f261857ff9cfcf98cd70165544c715e81cb5afc9. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USWD11779691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0dc6694e2d372fdd74afc65c300b3ac72f7278468305355ae09c2c6626bb6c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USWD11779690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bde504ec0b9212949a7e8b0794a21739f3260ec806ca6d0f2cadbb435822037. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USWD11779692.
Compartir con los demás - Versión Diego Topa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2890de908d0cdc12094bdc0debba3828457bb14e6f52a124070c1935d192794. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USWD11779703.
Guardería Suave: Música Ambiental Para Bebés
Pequeñas Sonrisas En Reposo: Música Relajante Para Dormir Al Bebé
Sonidos Tranquilizadores Para Bebés: Música Relajante Para El Sueño Del Bebé
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eacb33566c27b35cb987942e9854857093d0ee7e77f303d3556916f59392159. 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/QZWDD2452912.
Armonías Infantiles: Música Para Jugar Y Descansar
Música Para Dormir Del Bebé Para Noches Tranquilas
Canciones De Cuna De Ensueño Para Bebés: Sonidos Nocturnos Relajantes
Ritmos Suaves: Música Delicada Para Bebés
Melodías De Canción De Cuna Tranquilas Para La Noche Del Bebé
Noche Suave: Melodías De Sueño Para Bebés
Canciones Mágicas para Crear Sonrisas y Aventuras
La Fiesta Musical de los Animales y los Colores Brillantes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233a86adb8c4551c4f2bef1ff6792d7b9118997ffc9f7fef49ec45f11c5e83f7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZP7F2555195.
Un Viaje Imaginario a un Mundo de Música y Fantasía
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29edb7b6092945bbbb83513dbcbbc5be8f64f263006f3e862c5c76d517b1c07. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZP7F2555207.