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 0x9414c4194a87e331584d817f494f1df88ff8dda788367cd632c69225c9e3f9a9. 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/0776cd5d-b2bc-4d78-af71-c7f0e984811f.json and https://artists.proofprofile.net/proofs/artist/0776cd5d-b2bc-4d78-af71-c7f0e984811f.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 0xcdc18ebaaae978627ef8796d9fd3b306bba35805d96a1ab23d433601a32714e0. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:39:59Z), 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/QZ9Y21759016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8c89b1ad75ff446b8187a9ed6ae6a6596087f9ff8bb24baa4cb7b31a7657f8. 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/QZ9Y21758979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8bd60731fc9882365e8924af8bce24f7b3b76f9cd2c921de18a4af63606699. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZ9Y21759012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e52c9ef038781d579c53a06efa129ef67cc5e899655fd03f99dced43fb3620. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZ9Y21758953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ae258f43ffaa737e1a6e67e80eb04e9f5b17e550992276aac394bce70eb5b5. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZ8LD1776918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ed4d334cecba52c87bdd47afc36aa0ebb4495771bbef76c90cd3d693dab686. Chain 2 (Bitcoin): anchored in block 957842 (2026-07-13T10:08:30Z), 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/QZAPG1710324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd3f461559d07f03f1a2d5a9aa49e76bc0cfe9efecb75ea2b75e818203a8148. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:32:59Z), 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/UST8K1717765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380b203767a6ded260af28bcdcd4c50ef7ee1b149ef765a4039e89029d41b120. 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/UST8K1717770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8232a03e1b237636a1d146adb48eb464344f4a470fda7632218e9f3d094af2. 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/UST8K1717772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dec627ff93813daea1e163184ccc4be18b3ab0d3a20d6f867cd9e9a8e00432c. 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/QZ8LD1718457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd66f1b0f26dcfff50fa1e9ca772fabc113e9b4d0e519b9336388ec6cc7c8d39. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/UST8K1754533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaab50399068887d1569982070a9cbb60ab33a08d29f14e5f5377a604154fd19. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:04:41Z), 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/UST8K1754536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5868d5a79a7761e02119649042b5dc7e57af87ec25bc36108c7fd10dce4ca54. 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/QZ4JJ1762803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7214be4236845ef9b98d9457797b433504efcc8e601fd4b6142018ca4a3f2985. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US3DF1817828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b08a17a79db422764b9b182fb0538ffe4cf1b382a112513ef22d636725244c. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/US3DF1817832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b895154885472a6edb098090010ccf8df9800bd3952b21c217d934b90964462. 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/US3DF1817836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4318bc42d90b0ec1f271a9bca63ca9a2169dae59c2cda2af82ec9f8dd0e7b792. 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/US3DF1817837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c47e3087a15a931269a2fb901e7c3eb5ff3328ff4402d2af55191937330ef39. 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/US3DF1833562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60360e2b4238980a6ec1e9515c8b8ffadd4a974c2e6aa005f99a82e4fbcbb42. 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/USDXS1900312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6baea24c08f7024ac46119a01319d183003f7272e6b296a82671d36d39788474. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USDXS1900361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301f554ff82867e896cb36b93080406422592483db234a9ddaddd6c718f339dc. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:27:53Z), 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/USDXS1900365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a75d2363169052e82ae1ec7aaf3299ace8d9c80f4bdfc9d696fabba39ce845. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:28:17Z), 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/USDXS1900382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32a9e97c728a25d6f018b6e05597c6021c04ff8e7ea22bb14054e8a4cf71bd0. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:42:39Z), 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/USDXS1906641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe044d905cfc6696365fbfe659aed055a6fe12bba893785d3d2e3cb4a5203cb20. 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/USDXS1906642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd673e3c07263d7462596ab5ae1257fd91806dfc388072004693eb448850247d. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/USDXS1906649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0906bfeec25fc60dad5dbf41cfcab57abbcbb7a9b367671a20d69037eed370f8. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/USDXS1906651.
Fui Demasiado Para Ti (Versión Mariachi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe042bc8756fa93223dd2bc2286890eb47cdccc572488e6ad6b27c15e925b67. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/USDXS1911589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb14e06398ac33712a7140d78f4f0fea18e72d7284b85650601d3d17992206c2. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/USDXS2000491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592ad83ffc515fc8544d271fabe629f96f81069744ec8df12a090e95542f4914. 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/USDXS2006277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84e0e80b52bd14eb0fed6da83788ceb3ed7d3de101d2e7744d5387f5b4b6fd8. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:11:11Z), 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/NLRD52019636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095b1a6607188c7773cc5f8c6c93a5272d144c0d813bff57d8264637d4835707. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/NLRD52021004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9ab80cef926f0150205e822ad133d445fb8a54c4182afb301726d5dd3b7198. 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/NLRD52021008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd052517116e9e83de36f935c832059e5e9bc66efb930117a6d69871172e9af4c. 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/NLRD52021012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4523720fd19a8af8275bdf548e9d6bb1076b9da90ed808912ddb03c9e28d538. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/NLRD52021014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e65d9712f6cae150b9754f7479feb6c1b725a1751c0eb4670131d6ca5f3844. 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/QZQMB2104483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4af17b0e81f60ab4a7a027d271b9cb536bf25c0006f69d86277368a6bc7a7f. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZQMB2106942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f04b7be8b877023ed73cac7a84e400a80097aea07ef931cfec737f155502fb2. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZQMB2108409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1859385791e5f5289988a5d0ce8f82ecaa42d108dbe66f83c920831fcd8b7459. 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/QT4C62500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b76b85fa7d5e4e96e206a7936cebc4e19375301fa3028320d811e3ae6e7b68. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QT4C62501044.