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 0x3ec9b2eeb23991c5a2984fb07dc4026530efc640c440ecef8b7bfcdcec9b3b21. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c280797-32f2-4517-aaec-416e1a6fd4b1.json and https://artists.proofprofile.net/proofs/artist/3c280797-32f2-4517-aaec-416e1a6fd4b1.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 0x1180b01c6aa90ee756bf670c80c6109ca90f5bb02550300a85618120847bd9ff. 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/QM3DF2121722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1180b01c6aa90ee756bf670c80c6109ca90f5bb02550300a85618120847bd9ff. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM3DF2121722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2947808dc16dfd476c8493fd9ee0c378737e7424c9f43926f3f17aae1a4a83a8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USANG2025039.
La Roca Callejera | CUMBIALANDIA: En el Estudio #3 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991e04860b8906884ee382785811bb01416ffddf069e38e249e356246e6a4d04. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/AR5UH2301678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c793ba1b81521d672eb267613926970dfb46a449b18be8a3869fbb2a2209eb2. 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/AR5UH2301679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72365bb2bc7cc73a27e55e2d3283d5b8ae7fb9170eae2a301050214e0ae4f050. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AR5UH2301680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0475ca7642204161f4388455b0a4be766df804f6b592d1199bd6bdd6c17834d0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/AR5UH2301681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf159fa0a26183d33c24847d8071327a92e64c89f30a9195f84f0c556e7f547. 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/AR5UH2301682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4196965d28bf8eec88d81858bc7e832d8966dcc5a5cab5b867ab86607aa1cd10. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/AR5UH2301683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d93aacc09849264d91cb57985d2534850acc1cc434478a4830887c0a8be8201. 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/AR5UH2301684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4eef337bf71a49f7a542a8f8edb5997a452c7046cb012eb0787d8861c957a63. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/AR5UH2301685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79ffdaa2652f1b3eacb687bfe174c396df57c9c418247d99d7cfbf8b614663a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AR5UH2301686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c58ade84b4c6897883d6fe09091c48cdca735dcfb9329dccb65cbb7baa6255. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/AR5UH2301687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2157af19c780a60ded20db464a884d120ce2b2bb02c11a9757e1c77306c1166b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/AR5UH2301689.
Piensa en Mí / Culpables / Tanto la Quería
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9beed2b0b87f118572d42d0e230cb636f46c3e2801b9a395853314443bc45aaa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA011951654.
Te He Prometido / Ya Me Enteré / Juntos al Amanecer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed6df4c9b145110459ca31ceb21bec081b48ebf190e18a189c115956c2a6e6b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA011951657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16570a91f4f43ff3b79dddb111247854675da256bb093baea369d7656b54e9b9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ESA011951661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40912fde68eccf72997e8cffb04c3bf179b82a2b250902ba8827bd6860f2f717. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ESA011974538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f60f0028f625f82b35a46f8fb4a4a08e6db6caacff9a3f83ca679e7944d12e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA011951656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590bd507dfdf3633a97230cd601c1aeb48766ca82ffe20fe76b2ab914427542b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA011954125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475b637631eef7acc2af638912eadbd63791cfdff39657b30a40b08d537e7b54. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ESA011970153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d5d954359fca602d7220e5fe1e118e626c89eec327cbccac6f4346a07b4033. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ESA011951659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc36c2c48f9f73ac6f33d5a6989a0725b668f6c1ff83bb90af5f004d5973db1. 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/ESA011951660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64f50852d48a043201e4216e4e920421b1c0d272a1fc748d27a5cde9479536c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ESA011951655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6383b4efc7a8661a82e9dfde4cdb81c0057eb1ef88403989b0dec8a832f87c6. 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/AR5UH2301812.
A Mi Qué Me Importa / Mi Promesa / Que Vuelvas / Perdóname
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10601f56ab2ea24bfdebad5e334175be1db2bfc9db27c94fbc67dd878caa83b5. 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/AR5UH2300688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3483d308f978106d462f22ee7e94860aa10e89bb902047379037d5863427a8b5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ARQIH2291571.
Basta / Disparo al Corazón / Me Acostumbré
La Primicia / Digo Que No / Podría Ser Amado
Me Olvide de Ti / A Puro Dolor / La Pregunta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293b57a4b26b3ce12d559db61830e253e8ab53b0214cae19e6c19cb8112cbdc9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM3DF2111228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7a3b9db63fee25ca80b31070f26d507a849f919eab0ad8f0d23e45b11d55da. 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/AREA12000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89dbf586bc69631df9f533cf68a694fad720ca129a62e29e20916c32969a7067. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ARG991032239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0e73debf3f54297f435a5d371f63f694c58d804f192addbce2dcc2a989fb6a. 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/USANG2157953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e59382adbdea065cbb1b50a4e6e176df3f4224ffd42442ecc629a1c7894398a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USANG2112432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3eca6fb661afb2855d74e8477377e6c5f40b7cba8ff0978ad228dfb65d07c9. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USANG2067909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacf7c360da11750710adfc3582b52b1eddf782708be3ada9d0e6f9d66bc8155. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USANG2036711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc9fbddd839723ac40812a03d78fd530af11c5936d88f7d5f5828f543ae5f2d. 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/USANG2003400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58198ed79652044f23e8fd7a03545ae395c9dac2e8a4d499a92cc10d9cbc270. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USANG1921762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab65cdcc6eb460f6fff437af34d79b74ec15ad4d2ddc037bfe77761059084de. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USANG1903587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed6df4c9b145110459ca31ceb21bec081b48ebf190e18a189c115956c2a6e6b. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/ESA011951657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16570a91f4f43ff3b79dddb111247854675da256bb093baea369d7656b54e9b9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ESA011951661.