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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5478e9ca44a4bdab25cdfd5e738a5e3fc06e79c68b661c620ba80ca77de2b5. 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/e8d9b0cd-8d62-4d79-9904-9dd80980439a.json and https://artists.proofprofile.net/proofs/artist/e8d9b0cd-8d62-4d79-9904-9dd80980439a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbae352c013608cd54288da0990d7dfa6eec3acf63d27b5180d7459c1dc8e50. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US3DF2282106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07844b30afe44a4a3c3fef63e7c8051a38363529758d744131915cba11e9cf6b. 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/US3DF2282108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e914524275a0ce9c8a4ea24ac6203f78c589d3749c888eb1b89617c65761dee. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US3DF2282110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1999ad910fbae35b342758e5163e5f5294b8a1774124916eaa264bfe3844b5. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:21:30Z), 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/US3DF2282624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10adf694cab99f1d9df376c1970302c5c61b993b4d8952cb8fc23f42b03b0632. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US3DF2282744.
Las Mejores canciones de Saxofón y Guitarra
Las Mejores Canciones de Saxofón y Guitarra (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e487f22cbccd83e5f8ff1acead44aa498ebe7344c76902e1fa45ed6a794005. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USANG2200374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08de7dd364c7f524a2b0dc1b790ceb6ad6a56b80a8554ef1d4f711dfadea0945. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:51:23Z), 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/USANG2200385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521ea024cc3758ff89b2b4325759c1453b529c7e223b83080f1837e143b979b7. 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/USANG2200388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a74e1a8f4537ad50179a32dc59465fc7247e7f8ac9cebd852306f8d6d6fb35f. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:29:32Z), 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/USANG2200406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001e77e5c08113eee7df007fa5ee6444237d1aaed151fd20188754b1e61f61ee. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USANG2200411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1d7402df0643e1e6dd269fe611418eb7fd6bbddf55c02cfd06f01f7f7b0080. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USANG2200413.
Será Mejor Que Te Vayas - Versión Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73dc952824accb5c8b90a26e369a370fc8dabeaa249fa9a4d41d687a3f318ff. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USANG2200414.
Siénteme, Ámame, Quiéreme - Versión Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a8662fe6ef620533c057488f3b34a82ad983f4a09c004a2e3d4ac61a67fd99. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USANG2200415.
Música En Guitarra Grandes Éxitos Instrumentales
Música en Guitarra Grandes Éxitos Instrumentales
Melodías en Guitarra Hermosas y Agradables para Escuchar (Instrumental)
Música En Guitarra Y Saxofón Las Mejores Canciones Instrumentales
Música en Guitarra y Saxofón Más Bellas del Mundo (Instrumental)
Música en Guitarra y Saxofón las Mejores Canciones Instrumentales
Fue una Noche de Verano - (instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891dc9ecd7e2358208e4aac47fcb448ca6d85734e5df7bd942cfc3085f7e367c. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:21:55Z), 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/USANG2231475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0caa2e499dc23429f8b4366975a7e1a4cd2d1a9f60276b65d658d3b00e2ac2e9. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/USANG2231477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1fadfe2282a5fdf0bdc254b1039b7be503de6598335c917bc7492c889bde0b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USANG2231504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78bc97b79a56c14f4bdd2cca45cd9b4c3607307e342a57df0efa33f1b3b4845b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USANG2231506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b111beaf1272adb39f5b2cc97c3b098973e65310ed948b4344ca0676798b033. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:39:20Z), 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/USANG2231508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab1b6943be234cd0ab0b4dda7169979750c2a85c766fe69c5a612a14e3f2123. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/USANG2231511.
Música en Guitarra para Recordar (instrumental)
Grandes Exitos Instrumentales de Oro (instrumental)
Guitarra Relajante la Música Más Hermosa del Mundo para Tu Corazón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b0e2b32948f277635911f5f1c98080acfd1a26f57097e7b3e273c1d545cb85. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:08:06Z), 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/USANG2238726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdd3f801f01e86e489d09484f40098bc72940c650f72fa4b41845a360d5a853. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:07:41Z), 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/USANG2238728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cdc5aec5246054a7a684d840414582791b8ecb0d50d86639047bc4a9b7a132. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM3DF2205368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231eed0060ba8e2e82336b452eec380ba6346a9748d6cc90c365e5e72f7769fe. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QM3DF2205371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1fdba6844eb6117ee52df9d55c7d8a286f93b7529758a646a6e60874ddb9a5. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:57:49Z), 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/QM3DF2205372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fbbee267443ced7cbb4a6a0c2d822dc4a54441f5befaef27d62d14d11cd529. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:04:32Z), 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/QM3DF2205373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f8bc01e3e07560b086d6964188aec30c21ee0b8ed2f0b8d3d0d1f135f2de30. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QM3DF2205383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2636f5ea7bae66af2f4d70df96b9482980f39109ca655ae68533932c03ee02cb. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:08:54Z), 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/QM3DF2205388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0892eed4d6f13cd0a4c738da059efde3c585aafb91accb43c4d50730983c2504. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/CA5KR2399215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93162b44252232f13946566e5af4b9c4acf7c2c82e87d7c2951776218e72783. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CA5KR2399216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2c188b211bc28abc792198fb72141b113575e81eaafd4c4b4cb4cb9d4c60a1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CA5KR2399217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e424098800d1caa94cbffe8737cf18736b408de587bc0688414f3ddced8b02. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CA5KR2399226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289dd0c02fecae163c7a7a9b5a6c6ebe52c159232d32743654d51591672c476d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CA5KR2399227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf550bec47ab129f9268f169592bcb857afdc52f7889f6088f8ba5d7f67606a9c. 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/CA5KR2399228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4960b177d68b8bd25d5c67bce2f1fc962b8fa7f86b371b60d648b3e8de1630. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CA5KR2399229.