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 0x56aefcdc235df8df88ef22c836bcca3742f6df79e0307e2d6a26c5c30e7e33a9. 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/22d4909a-0c88-4991-9cb5-c2fe0a4ebc38.json and https://artists.proofprofile.net/proofs/artist/22d4909a-0c88-4991-9cb5-c2fe0a4ebc38.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 0xaed382d72f6f79da80b5c7e82dcc5ccda9cda62968e1a4998e11a027a43565df. 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/TCABN1326026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7722add05f98722ec0efee946614b93a6f1b7e8dec80860a8ff2037f067a7f9c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCACB1401691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89aa0cb0756d81f876a65ef88a20370b512aec3930aca080e4d2a08a53d75e9e. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T23:00:07Z), 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/TCACB1401694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d7972a8d1c357de67234469381d1e98cf7e418102ea8fb49dc7fe654a1bfab. 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/TCACB1401695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1df99bd998ec499a89bdd18391bc7179a632d57e617e82259228e4cbea25b67. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/TCACB1401697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f05024288ce769266672a774aea818761eb3bf2191793db45d272037662f8ce. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/MXUM71400185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8e2bc542763de0a7658fb282b292205046a47e1e079dcde09aace5cc24c3f6. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:33:30Z), 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/MXUM71400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475e45d9ace3a8b5dcc6d5ec7fb5b3c0ba7638908093a211fc348b8d81e99b68. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/MXUM71400207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677178d6359192a827399cadd0b6e1478da13bd7dd37ea99b809398870eb8519. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/MXUM71400208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2667c8e5d757230d524618c26be3d4ceec9394f3ec0ee0cffae86916a79e69. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/MXUM71400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d24efe785e048e5505002b44e5dc6f7c3bbbe7e39b8bda5ec2c402c36ced776. 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/MXUM71400213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9d5c6dffd12c83662d90a7b9cc39a35f39fa65bfced745f0bb032cf0b3eb73. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/MXUM71400205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d21976c9a91a267275be656ebeff016a4b7af994381fb60eb94c37741cf21c5. 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/MXUM71502479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd536ad471d14a3544afd50b2cc02228886a6793171ee05b1c99989371c0c0e37. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/MXUM71700902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df3b60cc8ee2088a35b5a4ad9f5a1c2a3eff7506a421644e0da4cdadd7202cc. 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/MXUM71700904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a63badee11bea31f668ff8dd0e253e6097636ef03fb3239c50d67290870a7aa. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/MXUM71700905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04aab1ecdd5d9b06a6ed287fdeacee44d1344deb0f7c554ef19a5e261db7ea0d. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:19:28Z), 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/MXUM71802280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd620aa25f17218f36dcf3df8ddefc3337c3c93a48c6a2c1a8d76478ee6692b22. 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/MXUM71901949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c47b14cc67a9ad56db9b3e5c528d6bff378bb22ae2861729b441e242110743. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/MXUM71902602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3204a61d9ac3af1b6f2273ad03f97495677f377b5005574bd756c9cad120250. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZNJY2236793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096ae959d38cce79d96703a2589fcfb32623ddd08850ce76594e3ddd32a23551. 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/QZHZ52234932.
La Superacción (En Vivo en el Metropólitan)
La Superacción - En Vivo en el Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599d7aca9c342593deb8e618ba7498221eed28e11b1a4c468bb56ef56c08bd8d. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T07:58:29Z), 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/QZNJZ2317995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf242b6d237864701ec811eb49534e55dfc880e6dcb48365ce255b0f6f2c441f0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZGLM2230313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096ae959d38cce79d96703a2589fcfb32623ddd08850ce76594e3ddd32a23551. 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/QZHZ52234932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6562150d74799c589c4276a0998628798d00d0649737c2f6bf3d7de4a40a2823. 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/QZHZ62078495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe24f4cb7d00a04b140d0c82c6fe36735e43c34907ee9365deb6d81c7f0cabae. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNJY2236797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915c324880446e5c3f3c1b3562eef59062a90dd832ed67c1a77b160870473323. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJW2082203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7903efc4b6bff13f9f4ac421f2105512b3f7f42c7be7415e046acff5879ea805. 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/QZW9K2378977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a59e5480387be2ed02166dc692d94472be3718c30c8ebec6542cd498406d92. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:58:17Z), 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/QZW9K2378978.
Amar Y Vivir (En Vivo Desde La Ciudad De México, 2017)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52305b89fb30b4d37ada93cf04da61876052fe62ee513d1a35e7efad74d99792. 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/USUM71701020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca598c09241c8257f4c807c21c571b5ef9ef4dbefc673133962e5cef6abd4f5. 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/MXUM71501841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9d5c6dffd12c83662d90a7b9cc39a35f39fa65bfced745f0bb032cf0b3eb73. 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/MXUM71400205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa726db94475825308af883298c30a7302cf5ceb48749ff560668217db0030965. 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/MXUM71801153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e599f0b95d6ad0d9f02b2e1d1f99093cbc58c3594805f4c037b55a379712f0. 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/MX3741300965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8856726860223fe5d6943dd4b3433a7b8d90953d717e911e5077c9a75b1985ff. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/MXUM71502481.
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