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 0x84710640e173beb2c5bdeb7b916cbd275bcd83ef9ea4240cb837707d9640d7c9. 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/d829785e-3517-47cd-af68-adb1e55cb1d0.json and https://artists.proofprofile.net/proofs/artist/d829785e-3517-47cd-af68-adb1e55cb1d0.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 0x18816b2adb818c9cc9c987e10d2701d78c8bbb8a4c3acba4968cd87598d5fc55. 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/USCGH1971074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85229ff0071dcb21ee57ba959965903745b8649fbb0a50d2fdaad7a2881dba1a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:03:41Z), 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/USCGH1971078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be8bb58b2d9d8a3b3e803872e6c277bd690d59e9964287736b30dba96585536. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USCGH1971082.
La Gran Carrera: San Luis vs. Guanajuato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c8f5ca61a6b6b579cb8b42038bd3922c2ec8b95be3a07927f383604c29d177. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FR2X41925615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df71a597ec338edc88ca24000babf4bffaf34f69ac68a552f0451bddeb0a177. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZPLR2402615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b5f752607185155f95eaeb1cded21e43fbf4da166e60f2b776377584b338fa. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZPLR2402616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7873a4285a597fc3b8268f208cc2c57098b12d34270ae243ae99859319d7b4. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZPLR2402617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300165e19b44639e80fa055b1a746d678362fd99282fb98a16e38c8c53b10539. 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/QZPLR2402618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cab2203f73678456b4c1493b3d4e62ee81cb28f016b78321c53e0af2413c757. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZPLR2402619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993e6c1bddef15b7098868494f6d428e195ef1935f4c3e8296fc09c6d7824ec8. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:32:10Z), 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/QZPLR2402621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66f3eb4891a832efbed48503d8e6d410b174cdd839948021c5d21792b91fd31. 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/QZPLR2402622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd03005b44ecbb39000f517559db2578362932dcaede77824d8c320d7e9767f8. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZPLR2402623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e571349afd2a1b172492ee7e0973a3ab180ece4b439d01ea54a685605ab54d9. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZPLR2402624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e4b241731722a203c318f7cd59fd191b8d5bd195eed4c50f28311e9abd9ddc. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZPLR2402625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8254ec9938964c71f7414514f7698d6c08e170de22b25d7020c83e6f248d11. 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/QZPLR2402614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df71a597ec338edc88ca24000babf4bffaf34f69ac68a552f0451bddeb0a177. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZPLR2402615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b5f752607185155f95eaeb1cded21e43fbf4da166e60f2b776377584b338fa. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZPLR2402616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7873a4285a597fc3b8268f208cc2c57098b12d34270ae243ae99859319d7b4. 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/QZPLR2402617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cab2203f73678456b4c1493b3d4e62ee81cb28f016b78321c53e0af2413c757. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZPLR2402619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68dedbee41c71218fe142361ba11d380782158a8c4324ccfe9d86a1ba72646e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZPLR2402620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993e6c1bddef15b7098868494f6d428e195ef1935f4c3e8296fc09c6d7824ec8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:35:12Z), 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/QZPLR2402621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66f3eb4891a832efbed48503d8e6d410b174cdd839948021c5d21792b91fd31. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZPLR2402622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd03005b44ecbb39000f517559db2578362932dcaede77824d8c320d7e9767f8. 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/QZPLR2402623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e571349afd2a1b172492ee7e0973a3ab180ece4b439d01ea54a685605ab54d9. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:56:28Z), 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/QZPLR2402624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a2e2ae0928f65cbc0adc4a7ab890582de3e824a240f08258d9d6b744a74ca6. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZTBD2425751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5376b9a317276f14e69fa4ffee2d3114bfce02812b355ac730a82128b068088. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:50:54Z), 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/QZTBD2425752.
Corridos De Plata ó Plomo "Homenaje El Mejor Guerrero"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a88c5f4d3fdb68e6fed4f539b5d5f0a3c484df260997f3c72c500a2a130ab73. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:48:42Z), 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/QZWFP2448925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4062f6f52fde468258735de53acf34082526690ad2ea4521f50a64d781dd76. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZWFQ2478133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816d66384fc3a0c6c5767863c28466a48ba174c4c6e1e64d620371e5f5cd4f2b. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZWFQ2478136.
Corridos De Plata O Plomo "Homenaje El Mejor Guerrero"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a88c5f4d3fdb68e6fed4f539b5d5f0a3c484df260997f3c72c500a2a130ab73. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZWFP2448925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4062f6f52fde468258735de53acf34082526690ad2ea4521f50a64d781dd76. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZWFQ2478133.
Prestame El Corazón "Homenaje Adios Amigo"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08916be920c551e52e14a2ec7e4d9768f9769d041cd31f824d4a2f6b8c792091. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:37:16Z), 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/QZWFS2462645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935b45473a9035f51e7945ce7d39676fceaf962a7b33f59faa7392ecd397d669. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZK6Q2522266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec021267fc198b2402f1dc5d578b753634f434557ef2f52c384db6f34391f01. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6Q2522268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723713e0fd9f88bfb3bcb13ea2d228dd0372a00d3160c534afaa44be18ae29a1. 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/QZK6Q2522269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe239bd0ba0aa7a835b18bc54b2ad7b4bf7b6c3e52cff2cfb22f2c1e1b7cba446. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZK6Q2522270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45923920c521b75bd0c8a6bde50f4c6a5522bd294b03c16d55540a6a18585f60. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZK6Q2522271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293197f4ac7d7f9bbe5437ff31b5dab34ac0f95619fea47280e39643a8667719. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:39:05Z), 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/QZK6Q2522272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ab3d42ddcb44b897a9ea1989e2f7571dfc55440e667ff8489326d7d55a3fbe. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZK6Q2522273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871b09e660aa98e28460a73d9a97accfa69e6d674d54b856d8e111023ff9f802. 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/QZNWV2521710.