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 0x72b87ba657ef887383a50b4f9ee621c435eb2d6848a84b2b7281617a49b8766b. 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/4ca4cf72-6a92-4a22-ac97-77924c8b320a.json and https://artists.proofprofile.net/proofs/artist/4ca4cf72-6a92-4a22-ac97-77924c8b320a.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 0x1588d1e6c91c212f253f752f5190e47dc55ac8ebac5f9258dcee18dd83543f22. 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/BCO3K2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc19d2bbf6115de429ae3a859061ff7878bf682f7bc7232f5ff83a8fe242fac. 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/BC91N2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c0d7651ceb3cb7f08151261f7897c30bd62a9c43893baa3703b581f11d2a11. 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/BXWVW1800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa6ac154eb95f7502926edad36484d4752bc04767418a5d8e5554c3c33ec761. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXWVW1800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe19f34099fb2f3b3b96c491d78ebd764d2435d1785255f31b587e2e3ef7ff4. 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/BXWVW1800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655d4b213b0bbbbfca7d08169557a8013cbb039c79db8eac4dd98854170a3de2. 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/BXWVW1800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176f8255156b851e9d89f2f97d5fdb097201a4c5a12e99efaeabf4c3b65b445b. 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/BXWVW1800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa7672d8212cb3cf21ecaeb0c926c557c93ac2904f7eba2f6ad49ca04719655. 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/BXWVW1800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6b9ef9b4abf7b8d44da8d75d59ee5d098feb891dcdd012b84b0df4ab38422c. 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/BXWVW1800041.
Planeta Dominado / Tropa de Elite / Rap Glamurosa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83778e2b2e6f5b30c7df8b7ac46d31aa5cf6c956801e50f8a0cdd96c667fdf49. 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/BXWVW1800042.
Uh Papai Chegou / 4X4 / Trair a Minha Namorada / Red Label ou Ice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f8e489f65afe6b1759667c8305194283da7059b2f25fe86d45d235f4c0e5c4. 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/BXWVW1800044.
Tranquilão / Vou Desafiar Você / Perder a Linha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b1a1eee8379428b8dd41f8aac5398a8d774f71e4890ccdc670b1135d249abb. 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/BXWVW1800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea8943f2a3c2813fc1a168e95c92cd1f46651aff4c47813a6c1b51f1cbd29a5. 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/BXWVW1800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bf7e7387864e00eaedc2a6623b7779f698e0fd656309b272edbef56d5704a0. 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/BXWVW1800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eaa2f7bc4b0694af39bc57ae775bdd8fbdceff87c1fc0fdcc1d30ec8411027b. 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/BXWVW1800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d3cdb4b9bd9ef26ce384d6e6a7a424e8a790f66b3de4e76bae0e150c7417ef. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXWVW1800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c41208e41780ad95c2f8309631946f036b189529f6ccfc8695295b89844d1af. 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/ITB881602629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54771b9cdea6053f7f8e8052aa47abccf5f25d3490fa871390723cdd88faf1c4. 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/ITB881602630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96b86d210083bfa08912869ac4d414a4698fe078822b7c50243a57c97f2c88f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITB881602605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41d9677b18b2aedbe424364d1c3baa7b132e0019cd0719560e574af7fd6e71f. 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/ITB881602611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fed27b1a3f00c4a106978a51c2ddd14d3eaa2d635f0863e02ad57044ed24132. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRBSN0400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2894dc2c45cc0779e340820c42e645710eb4e4a794b06047b1f4693ce34514c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRBSN0300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b3f72b0b3dc65472e5660ef20a855b542b35f8718d652257912be3c2889b8c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRBSN0300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5bec9e8340111017647ca18f01c03d0ddebc26862b110914089761cd170954. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRBSN0300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ef0ea84547a5ce56d2c14c550869af80c012855b9f13c4125bd661b50973f6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRBSN0300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8a729e40faedaf84c999633145fbe6b673c95ec459ed5564579ea8b337b353. 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/BR03D2000409.
Tesouro do Pirata / Dança da Mãozinha - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9f88ab2deec40d55f441636c5280e1d90ea251f18f58b3e6b8f6c2628a3a2d. 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/BR03D2000422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1ab66e38260da62514e49e7ad14ffc1d9d13cb7f1a6061c3e15e56b5dbed48. 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/BREMI9900146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ab48faa8f79dab9b664bd3283f24ebc52c340fccffc8ec6034091fb92b466e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BC91N2200008.
Pot-Pourri: Onda Onda / Explosão / Aninha Na Praia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8d2912272b336d14a221f52a1f07ab81a8a8bb8810a9968670dee27e339439. 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/BRMC21800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee84796bf5a5768252c859b42a92b9fac3425db2892d94fe89f87347f59c696a. 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/BRMC21700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96b86d210083bfa08912869ac4d414a4698fe078822b7c50243a57c97f2c88f. 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/ITB881602605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584919c52bb42d82d3e0658a89030ca40865617d1228ce5c3853a6e6b4cc02a1. 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/BR03D2000798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a11c530501fa0709883c8948eb9315ee6b5acb869f825014f9c2402c5b720a. 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/BRUM72402487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e3e86ccc43a445b0011c9a8874b886ae3531e9718591dd74d573866647b043. 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/BRSME1904135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5c5ca0015e480bbcf43029b8d46e5d8e6b53b3cef71bbb7c34df154a743cc9. 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/BRT3O1800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d662af1eb7b78ca85c8fb60a8d112db2a5fea97da5e8e739f29e7caba81b909. 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/BRT3O1800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916f5e1cd175bfd06568136be45c0e6d485f20ebc1e4957aa268a3d638759145. 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/BXV3F1700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d3e490d541fffc29047a13704ae4f3c023cedf44cdcae944b75707347d75ca. 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/BXMOP1400007.