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 0x75d2db507d734e1d745d278acf3194e52339b6e342b6cdb517851f8e16881014. 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/cfc20a31-10c6-4f62-a659-a0314b3d2915.json and https://artists.proofprofile.net/proofs/artist/cfc20a31-10c6-4f62-a659-a0314b3d2915.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 0x898c90ed4ded10a9ebacd986f119f5e605c54474f6f3bdc4b7f39ec123e04b30. 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/ARG991018798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd825a4578c8057ca95ceb9a577a2102ee62d7441cf0db47ac131e10404f2d9bc. 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/ARG991018799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd618efd290a40da288beb700f218dacd3fd9e97b8cf3830eff1d27ad2d084e94. 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/ARG991018800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dc6b4fc7312437fa5715da92303443863015d74182cdf0875652fba3bcd976. 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/ARG991018804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb156549261dd84de5478ec049371c4a6ed094fbffd0a2ad750458809f15ed1b6. 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/ARG991018805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d9655ebcc398bc8bccb39026e9f621999293a836f08e243c9b680b3b0084e5. 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/ARG991033765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af41dd44ea0a6841960b69bb5608166af3187589b6ee1358c158b0c239e0aac. 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/ARG991026876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571ff55b9c3ceac05052743587118ee1491158e26756914171bf18c6e97fd1f6. 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/ARG991026877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9222b314fc951438d18ce1dd86f86aa5a7dab5dd82e379730dfda55dcc65ee. 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/ARG991026878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29cc16605f04a70a2581796d6f949fb675180915cb39c9d826b708be6635333. 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/ARG991026879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918d04f766ea21bb1950a99643cc756da6cc6066ed39d5a843124fa64da14112. 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/ARG991026881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d09c3344bb73e08760801edd3211a32938b8f85d0daf3953f5d668f9a81d41e. 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/ARG991026882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e06cf0a7976e3bb9939142b6cd1e5148ecc5756b51fd7743e099779eb01c1f. 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/ARG991039043.
Cara Bonita / Quisiera Volverte a Ver / Ella Se Marchó / Se Cree / Una Sirena / Quien Será / Hola Que Tal
Una Sirena / Cara Bonita / Ella Se Marchó
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4762a9684942db44f83738135ed4cb10f72fa345ea38af53804e7ac4c45221b1. 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/ARG991018386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f38f9f62ab58becd1b0da855c05126109b2bf493ea7b72d19e01094fa5aaecc. 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/ARG991025405.
La Movida Tropical: Los 100 Mejores Temas Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacdc8b7d4481919fd1070d8731d776832ca7c94644788b326c03d7e30424ba1. 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/ARG990901304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde972d43367745061adbfd6595f8e203887b853da04349e471436b1587cb579. 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/ARG990901305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d6e5e87151cba3be84b397f56db2989a31e4c4941ed3e4e777db3e36d40d56. 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/ARG990901307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fbe63a4d26a3afc9b2582ca4fe4b4da5378927c8a54eec8406aed6c0d257b2. 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/ARG990901310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4ecd05681ac70f1986bcbe2245b7c1379664bc72238bd972bd97ddd3d9ea9d. 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/ARG990901320.
Cumbia Argentina - Pasion Tropical Vol 7
Gilda Remix (No me arrepiento de este amor, Bolipop, Corazon herido, Noches vacias)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf62ac7cd110c7e9b67d3270fcb160f394bd92de718f1303d9d882af2220c04. 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/ARG991009074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f92f81fb6f3fea142d9e7783ed95ea90e4f4f2f863e6febf8493647893be18. 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/ARG991009075.
La Movida Tropical: Los 100 Mejores Temas Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ca88782f465060dca79e76bd7f29692fb172af9f9c4cdb303f7a30ec132923. 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/ARG990901324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dfc93286949bde2bbb2b2f10e12c131b311a1d4c8388aee339cc3b150fc2e1. 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/ARG990901326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a47dfcc49fac95cd864fa0a9a957f7a7fd33b284aa1c1e67f93e53b3778391. 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/ARG990901338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c706f5572dc8a258f02aa1c53304a8d7218c8ccfe7d3b29aae0326834affc73. 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/ARG991015301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7bee490ca9503320a128e8d67c8111d6d4906832d81a0dfd4079b4d763d69b. 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/ARG991021812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f3eafb6caf92765a7225e97b4be3c16d53f603d2fc954283d8d89d3b46c9af. 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/ARG991021786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce427921f8e89f7e4041f8f2cfcbfde4d07ed994a4533520863cabcd9caccd5. 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/ARG991021790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eff5d1f142f0359f823e829523afc0256722d476cb554c1f363c0d62b314a16. 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/ARG991021795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd15219244ef31bf8f1350ae0b18dd7cafc92eb05210582148651fe5e3140dd. 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/ARG991000591.
Cumbia Argentina – Pasión Tropical Vol 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48daaa476b3abec572570e1168fffff222cbec8d397e927c9984fdabb38a6c81. 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/ARG991009048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6213968b7641d0ddbb8b3360e8995d0049152363efcf455eecae4d8242998b1. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ARG991009054.
Cumbia Argentina - Pasion Tropical Vol 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98288972ecc1e9614549790944fce04e1149afc5ac3f864df21de68b138293ce. 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/QZDQH2421307.