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 0x34fb7d163f901e87e596a0c61a13a84f90e838ab1caf6c69c67903ec1ac824f2. 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/ebe22131-12c0-426c-a079-f647031ae456.json and https://artists.proofprofile.net/proofs/artist/ebe22131-12c0-426c-a079-f647031ae456.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 0x708a2ffe3fab8c54e5fd119326f24034e37820b74bd509869af4f2cc1e03c259. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/TCAAY1192251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5c36efa0ac3fdef01d3bbc64a849b85e49faec8483e2057a3eeddfef2bbf97. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/TCAAY1192278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7bc05bd3f343cb08b41609c3be7d36b7994b02aea5eec60530542b827a2367. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TCAAY1192310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74974b07a7db7267253af557c044a4f242cc4fb8f23c275c87fa0913acdbe186. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/TCAAY1192317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada31f62df49dc34b588fa81b10fd9471952b5079875009f320791a583c820d4. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/TCAAY1192334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec182ddeedb2bc6f0c5c2f34037c80bcb13e5a422b2d1553a5ac9afc50c5192. 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/TCAAY1192393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c92e2c94ab49d05c3c0e0e9dffa2c5fe8a7f3a88be8d5a0ee3a29477b1d1f77. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/TCAAY1192417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06202c589e98e2c3bc22e09f7f4a6ed4990048109a558609ee309e6d275dc4f. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/TCAAY1192515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470438f9a0f1603cd78392c9f9c41c7017ea9d6e61a8eb92c382a8464d5ed94c. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/TCACM1681702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28859097c24c4524b24e1470eb935f8461d8c54e3e1075cd9ce394874f43bedc. 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/TCACM1681711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39342952c85a3d149ba1c60c883b39b61ee7151138c9d78deffb7f679ac74eb. 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/TCACM1681719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1502b52d43d31a175f8b5d8332d4408e90bab7c186bbda7b5ca585ba8e3156. 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/TCACM1681722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585fc52fc110e4dd8cfe7f9a28b4b61c9be79409d4d627836530c7b3abd8f289. 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/TCACM1681754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d555e5656dbbd13e09ac41118e07850893c03d23cb6e3a4f6b34616af76a4f. 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/TCACM1681757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529faabffce2581bf8b2e8d8c3b127805ef9fcd39577eceba1a43cc50035def3. 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/QMGR32069031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13dc21b94a627789ae0bbf45ec5aa8422b337f7c7b8125ad90c1df619ca5dddd. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBWUL1810512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb77bbd9470ab1bd7ad7f7f517419743c801d2b264cdafc7dd2ccb26366e7af. 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/USCG60851069.
La Música la Pongo Yo (feat. Manny Montes, Ivan 2 Filoz, Michael Pratts & Daniel El Valiente)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf63bafb28d1d1e093b2eccabb249140b666394b5566a1c2b815b45f2168f60b. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/TCACI1578051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b7ab4b35e165ba3ac6de27974d1e8f52bf83051a000de92d0f5429affa9b43. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/USHM22465835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16102b57c43464356037f6ec562ba635f5667c6828f86fb23ad8f131b2c62cb2. 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/USDY41881320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ab1f1f1a207083103f4b994acc536b622b93f8d6b2663d32741886b2fc96ae. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USDY41881321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13dc21b94a627789ae0bbf45ec5aa8422b337f7c7b8125ad90c1df619ca5dddd. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBWUL1810512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6104d463534f12d461434b124630e6d42bd5da9eaee0a1009be8656f9935c8. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZFZ72037217.