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 0xc068ecb8d62c82face743fb467cfca73f851108cc15441595d38d1f9ceddcdb8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c01a88d-eca1-4e2c-a858-79637c7d6adc.json and https://artists.proofprofile.net/proofs/artist/9c01a88d-eca1-4e2c-a858-79637c7d6adc.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 0x3fa2ae4ff3a393e8587552dfed78d91a3db88616e84036ed0953a7b194251199. 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/USCGJ1236115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52712732cbc42ac74d4b95abc611a1a124f5b4284d9c2d3ba3cfecece3612a79. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/USCGJ1219884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2fcc3ecf8992f3879482f2f0727eb67cf8eaa9c8d02b140863d8fc03001ca9. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:03:11Z), 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/USCGJ1219885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd090c75eb097c3f6a4bf8ada8b872b5e44854b4272a4b75b49960096e25fe0. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:56:07Z), 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/USCGJ1219887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc74a310d5556371eae6bc68d1defcba6d775992064d540ca62eaa3b1f525b5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:14:39Z), 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/USCGJ1219890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb065d119e05e931796bcfd4391b72095b3e2b576a6a8e137205cfe3f78c4d95b. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USCGJ1219891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ade9b7c80bbadc3c23a4e96dc428848ab748d174dbe98e506ffabcf82382865. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:44:00Z), 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/USCGJ1219892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880cea0b168b9f431f30f2cc17c8415847180e53e79faccfea514fe222f53792. 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/USHM21420235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24acec32b21b31753b9c23f1619fc58307953e86a0642f58a1ee6d0bad791706. 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/USHM21420236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2a93901177729d1fe5eef36ec678986f312ae00b56ea466eda3949e375eb33. 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/USHM21420238.
La Promesa (En Vivo) [feat. Huascar Barradas]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d0d5917a1851bdf2bb42df928566fe18e854a053f13ab3c8b4b02a3f9e6d73. 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/USHM21420239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7a71ba7c1fdbfc5f37405df75cd43e495653d1ad97fc97f4e761a1837995bc. 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/USHM21420240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93990b671ed00d6009360e6d03d7cf592de78686c01bc25564050f27140708a6. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:14:12Z), 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/USHM21420242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab7228bb5a15e921ce4420574b98fda0204b0863bd39485aea81b74e4b30b88. 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/USHM21420247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e8813fcebf6120d826437cf0c618afc760fd0ae1cd4b4a429a194dfd4351f8. 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/USHM21420248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446504b309f21e7304cb9a89543c87e42cd0023f48e4ec5d1e27449d4890bd95. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USHM21420234.
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
Bájate de Esa Nube (En Vivo) [feat. Little Big]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0204d1fc8f2801c084e0bc60002e27b10c2b9d448a23a019c7b23dea2e432419. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USHM21420237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0bae21682243f4fa84710e8621486d28e3a5bf797c21af615f3ae8ec051872. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USHM21420241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f988d5c8130fdd71891dcecdcd555418e6875bbefc3fc86faf22da0542065d. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USHM21420243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf222f485c0f57d828bb7af96c7f1d0de986ec049bd6a77e3353f874a90ea508f. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USHM21420244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19dec318dc4a001a7c395254cd024010ea4b879e108e954883a8e878c2313744. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USHM21420245.
Vivo por Tu Amor (En Vivo) [feat. MV Caldera]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe349549d8464acde663590cdc12037bba33331fe05c6b58d0e4f4a8a9078ee21. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USHM21420246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75134538e1998e6faba5c83e18cf33952cdc44b6ffd587f28c433a85031fd1b6. 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/QZES52543902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85320a889b4c17cb5b63a04629ada9c1cbef127833043b99341e681709c1f98b. 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/QZES52543903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d82619e7192f38c95f8ca8639ef7eead65832dcccb98be855cd58a81a0c7bd2. 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/QZES52543904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939f768be752eb8e9604bf08f39b954a297152efe0143031f6c3014d8f6355b5. 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/QZES52543905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591a95ee3c9af0945a345e2591fc3a0e4cf4585f9f949104adedf9de9a3220f1. 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/QZES52543906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa328aa7cc44dcd98f79a888ca1d30f580f9d63a0354390111f31445e10c10b. 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/QZES52543907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f49e0b4efd784fd755e0e285f3094bb76ce6a369091996391c37b608b9c955. 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/QZES52543908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca6be8ba17affcc9ee7016504d3f95f766056cf1de4634b5b460e827f0ac786. 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/QZES52543910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee5a521b7ed50a46c0e68af4bc47c2c9dc8010e4b46f4f4a35801fa8033e1e4. 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/QZES52543911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7415be3b98361260cff0e8a1da917cc596e66f4ad62773b829247cb9aa2601. 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/QZES52543913.
Te Llevo en Mi Corazón (feat. Nacho) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cdeb308edfa2f8d540916e268ae1954424a10a8aa6ce0945a5346a6087c5c8. 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/USHM21806064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c2af3cc6e61582c1f9ad326094da4190d8442844dd30c9ae4df7cd6a24be1a. 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/USCGH1758768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396d6b4172941565daffc99127bd6b08e51597772ca02307dbfcb9866d950ff7. 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/QZ7R41751930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a5bcde518316c5341cfca31bcdab2870c6aaef50153e107ea802835be0e386. 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/QZW9L2374829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dae57373310f15a1a86c7b1eee0a090401c4f9b37e2d4fd60af9dbd1956430. 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/QZW9L2374830.