Tihuana is a Brazilian rock band, formed in 1999 in São Paulo. Their musical influences include reggae, rap, rock, ska and Latin music. Between 2000 and 2013, the band released six studio albums and o
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 0x9946843a0488ee92e0be7636fa8350c129f4e7d4ad78604608ee803ff5e00c1d. 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/485ca72c-1af3-4da3-a441-7fae75acb2d5.json and https://artists.proofprofile.net/proofs/artist/485ca72c-1af3-4da3-a441-7fae75acb2d5.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 0x82170fe8e5bef896355eba4baf9433af9692d264dad955cf3f0d88be6acac052. 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/BREMI0000203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f49fee9a9dc56ac806569574439fc4bf2073e0104ae471c2ac081d60d50f68. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/BREMI0000202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa904f9d5325715cba06ea79ec499ba09d58897faa7918b87ea4c07a92760521c. 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/BREMI0100242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c62302b1229f678353d415dfb60bb5b5e0b5bb913cb0eb623f76429fa4ea34b. 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/BREMI0100243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27662a31bd77e5f06f3294cc51c8a836096311a44026a76555a11906c4d37ea. 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/BREMI0100245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9338718d41a57ca2f214c5dfc234e10e0fba4f3e82bcd903f0ba7fe7dc9d8a45. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/BRSME0200646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b30dc555eb2fe8e8b954340833c2c668f0bac7b4068b3f0c6dceb32daa8ce8. 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/BRSME0200664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6d5727c2bb442ef09403746b7bc9c806bdfbece4c62fe856d0f5954a047326. 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/BRSME0200645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc660db3bbb2c9d6a98d70b03495c8c82752c29acb48b877fb65f8ef155c06a8b. 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/BRSME0200643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb4dc70db03c33057296aed77c15edac2a0c1b8a80990fab895a143f1a1e5cf. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BRSME0200667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd950f82af6f414d79a8eac86682ac41a16ef84878e9d98e50c4e367a7b7883. 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/BRSME0200665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc287b91225f79b288ded6b575f9aa4cef07c8bb8e1fba26ac4241466a1b3edd7. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:22:23Z), 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/BREMI0400857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf86fecbc218e4248911c192254a7a3e0b4d0b73f128dbc1c9fe7f8e6f63f1d8. 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/BREMI0400852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c74a720981d4ab0fb58578397346ad85d8a67b69ac6297c0e54674bfb65a3c. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/BREMI0400854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c96477a4ea6489af27a09796e8ae7d71d82628b57d263c402775cbd52e5ff4e. 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/BREMI0400853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb557853a69f8376584a1f2130bce0260d82f7bdb523430cfd07613bd8304bdc5. 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/BREMI0400859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d9fbb19aac0978cbf1d7d601d1062b0c086ea14ca714f66b79a92d4f6ca781. 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/BREMI0000139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a2b42e16549649a707e40d64814cdb5a34bcbf2cde0f6dc0ba83e65e205f9c. 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/BREMI0000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17a7f1ec2513a628d1ba021c3b01c4f451f9f90446b840617a44e5c057e2fc8. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/BREMI0100241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e59b7809464005c3c8cb9507d7aefb419fd7630bc75d923d1e783488ce4a2c. 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/BREMI0100248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8395a7b0820b8f81c7b8145e5a56548151d758596b67e2e05450e965da1103df. 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/BRMSU0600139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef91ad394d1fa76ee9f9354f893de7749e33cf2c7bffd1622ffed598b3f27c51. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/BRMSU0600142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cacc8ed484d5661b6736802437ea8d5f8c647d69511cfe0fe79109a4d63069. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/BRMSU0600143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc457affa9eff02156c8afca8690597300f16f6f9495c05fb3607977f4e3494ba. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BRMUS0600144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e8e640cc38136860473bcd8b521f997a90d58d45f54d73c7270b2ebc811f30. 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/BRMSU0600145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e83465a1bc0c3653f6dd134a46fc5803bb6b2e304b40d4841bdb4c35572563. 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/BRMUS0600146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4199ba6a000dd724722458bf49e02b5da7a2c88229287f368f2eb86d6821a66d. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:23:07Z), 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/BRMSU0600147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5248ea5a019e3a1a3ae8bde37603e8ef4841870b604931a1608782d5961518ff. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BRMSU0800077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8653379faf7d8fe8fe6c9883ffbd18d5c4887d1634b19e55f5194fee166600b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/BRMSU0800078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d44564437fdb1395b4b7acc73226af4892b69ba406bb6769fbdd988eaf4e10. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/BRMSU0800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45030ba2c7bb67b7109db61d12d3d9f80714608e943d48a3231bfc55babeb192. 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/BRMSU0800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf014643cc579ea0e44f2e4de6c3a21185d43c80b08ab5b287fcafe5a2a73af. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/BRMSU0800082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa628a07d1b67375f852e31f35a8421300f784779ed61a36cc4628d8db7a0fa81. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/BRMSU0800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d766de3ad4c7d7f7f3c71107781d99bfce63ee8605b4ce0b01276dfd799f49b. 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/BRMSU0800086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa106d96a650692ba1d085829459db9be543ae2e76644b650aa4681acb903efed. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/BRMSU0800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc973ca3b2bc155eb8182838250a22edfe11a39db3575d40c273eff093fedcf63. 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/BRMSU0800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea27458b071d43f7b4c1d70d655f5efa791f223deeaf85a2ad293448787b9b85. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/BRBIX1300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97332d2bd1a4ffa5415ba275ee2ba0b3325bd8f7ee90a2ce2282dd3d8e8c98e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:54:03Z), 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/BRBIX1300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cae650ff8c97c9115e3599d99e5a38b0987877665b82ffb52c9e629ef5a3bdc. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/BRBIX1300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8e79fd84d80c479386e50e8d956733b8ed55cf7a8b7116bf325c7660515074. 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/BRBIX1300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe898acaa294ee5619975f6fb0f23a6a8fce3218c55f0718b115700a74f83bceb. 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/BRBIX1300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cd273fa66f039b36cb581777bb1dec2aae73312950a5e742913e1a2a5795d9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:00:25Z), 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/BRBIX1300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b1a49656a86d56e22e76d92f8ccdd84d096babc3dd68afca834fe645837c1b. 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/BREMI0000199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319c6810bd5910fada99c439dc1aecadbcc4d405ceaebb16fa02c7ad97695717. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/BREMI0100219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b1a49656a86d56e22e76d92f8ccdd84d096babc3dd68afca834fe645837c1b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BREMI0000199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8acf304efd4988a128bee0dbdfb791ac2f18b7cf268e83a811063759cc5d5f. 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/BRHT11000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a28dd70f31881f969ecee0bb2534ca864b3e38aa3b34914a299bcde78b602ff. 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/BRHT11000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b1a49656a86d56e22e76d92f8ccdd84d096babc3dd68afca834fe645837c1b. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BREMI0000199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319c6810bd5910fada99c439dc1aecadbcc4d405ceaebb16fa02c7ad97695717. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/BREMI0100219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b1a49656a86d56e22e76d92f8ccdd84d096babc3dd68afca834fe645837c1b. 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/BREMI0000199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b1a49656a86d56e22e76d92f8ccdd84d096babc3dd68afca834fe645837c1b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BREMI0000199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b1a49656a86d56e22e76d92f8ccdd84d096babc3dd68afca834fe645837c1b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BREMI0000199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe02283ce444c409dfa17473e46954751b17b443fb522c9bd5a41d8caf814319. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/BREMI0000206.
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