Dubioza kolektiv (also known simply as Dubioza) is a Bosnian avant-garde dub rock group known for their crossover style that incorporates elements of hip hop, ska, reggae/dub, rock, punk, electronic m
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 0x885ee77bec9ac633e7ad18af7f73ad301742aff6b610176f9a5ad4a8681f677f. 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/b657e7de-77ef-425f-9780-22b1ea7786ac.json and https://artists.proofprofile.net/proofs/artist/b657e7de-77ef-425f-9780-22b1ea7786ac.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 0xbf933c5835925c4a960f12434e7e0dc63eff8abf60a521a2446cc0e956245a69. 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/DEZ650707219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08ae59a71499b1015d2ef842c59eb722b48e4c12be2ade1bed42dce5ce1c11e. 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/DEZ650707221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc51692d943a72321a2c6b6897759c76202d18d0b8f9109d082b2aac7ff54bb2. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:22:50Z), 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/HRAA40800412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555367401a52a1837a088b7a1490f080be87604f27b481a09a3cd937f4422bab. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/HRAA40800414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9797ac161b9a08e1f22641a6cfc1501eb647e0163819b17e2eaf1d4e1a15ceb8. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/HRAA40800416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d54e95e2287cb304926e5082dc7e4c9a23c3c23b344a67b3ff9cb3bc7bd14f2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/HRAA40800419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f551df11de8b0d8f674606d3a61ae5d4ebd4ec56f3746a5a39f5b8cdd141345. 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/HRAA40800420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173eac11e3d90231c0d4b20834dd97a2885928d0400ab80ca13717ad4773790d. 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/HRAA41000077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8f9cdd3dc07e5b5b92e85f033d2a9339743bd25e79c0e05c88ab51db14c4c9. 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/HRAA41000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb675627acd138ace9f9391e92494686a4cdfa049133819d7e9ab655d815f887. 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/HRAA41000083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b5bf32965243e723af5d116efb3cfe9732b2bfdfa508f06bf8bdc295e0e470. 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/HRAA41000084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f7678598ee23c526b76d4247ea0cb8e0abb2646198f93827458da219e8d78a. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:37:09Z), 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/US63G1100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202b5b9fe157d073d0a5648f2596ec34e3b0c262ba744bd9f8cc04d486491cca. 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/US63G1100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432ad8cb99c760b41dc9c8fe45c7043d660c8cb686de200048e9f0c313295010. 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/US63G1100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af28efc2779fd20db618bd296b94679ff432f70539ba8f6129fafac1b445b05. 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/US63G1100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94db38d69f281ab7eb91c569647415a0dab8ac5e315fd7f09168ad89abba6bb. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/US63G1100020.
99% (Los Fabulosos Kolectivos Dudosos) - Billy Gould Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45996a3519f71ae63764f9aeed824573e099a044cb35579b841102f753d75170. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:09:15Z), 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/HRAA41300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06190aa10bc822f6ce82817f92cecfa7a26e1b292b47bebd5c16596f688467f7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/HRAA41300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df13ee95cf7e1c331341988d8f930d538ac51e2eb49de7b4eccf7da33e57a8c. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/HRAA41300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1c6452f95ae2e3dcbb0875aaeadd4c7d89c051343e189971a768130ee5453b. 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/US63G1500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac91feb632eacb450aec7afafd5957124312e75da4c058cd519b22a93657fde. 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/US63G1500068.
Tri boje zvuka (Live at RTS Studio 8, 2016)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1c6452f95ae2e3dcbb0875aaeadd4c7d89c051343e189971a768130ee5453b. 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/US63G1500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634c704b0de9a1d491885baf7931aae495421b321a8ef66ec074e0a70b52b3e7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US63G1500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8596506003eb61b69050ad2e4f6ce915c203b57fc3dd3c9db1f929c1c54d4fb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US63G1500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb758c017126caf1176874df7fcb77e94ce5becffb22de0580b6337f8a314176. 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/US63G1500063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a9dec43a4fead9565b9590de970665b51435e66031fb20f00e0ad27f743065. 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/US63G1500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55af5f800881d46ca32d22a4c3d166d61f09d073443fff15914f1da27957f654. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US63G1500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe488667ec6c8d2b4036e62dd63a73d10d1a4ed90cb88a208a1276613ad5045de. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/US63G1500066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9e459392b0d0c9ed3060ca75769c83cd5e53f6373dc74f7beab775c38540b0. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:27:43Z), 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/US63G1500067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac91feb632eacb450aec7afafd5957124312e75da4c058cd519b22a93657fde. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US63G1500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2526d03b86cf5466a2f6a5e6ca449435e502ef0abdfd6f245b90275f7fda21f2. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/US63G1500069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22abb7ff6fb15725ee46fbef9218f6700884538618404b2d3e0d7abd8610ad2. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:14:25Z), 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/HRAA41700537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94e03565b18e9b0798e559c90f670f00ec05d05980eb72be2f982c571af8101. 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/HRAA41700624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce09f928ed5df2e2cdeec77783d18a934113b94d5c5b22be8719f82ba6ad113. 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/HRAA41700664.
Dubioza Kolektiv (Live Pol'and'Rock Festival 2018)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082e097610e416d74db7b5b954b558adf722432a4c5e536a642c7ef9eac8f809. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/PLT521900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3aa0e784bce8b66acef54cf5c292ba77f2607f6ac4292b956d46152effbe14d. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/PLT521900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fe3119b1e44501c7d2fcd1fc490dd7920cc871f8ee34179690253e1d91f3cc. 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/PLT521900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d554f9eb23fddccac93b17ca43fecd44ca8c7a4a6eedcf83570121456c99a7e. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:28:05Z), 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/PLT521900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464249d0d9800c2f663fcb62901d5a4572564a9a585add99dbe726d3cd9e12c8. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/PLT521900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9890384172c858a6785ead876b31093181dea15c77394a103f8ceecf65c03c. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:36:57Z), 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/PLT521900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15abb115186f647ce550c3f77a636a48a7650d60818084c186f5b77c468d11b4. 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/HRAA41901267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a597e857b0bf062f2efbaa8f133be0c68bf54b76c6e052cc864ce38f3ffe1f. 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/HRAA41901268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7ee19a882755573632923cc5afba264f20711af3d187f898848daa4ed0208f. 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/HRAA41901269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd947a443bdf4468100dd78c4b21480874192082b85ee609d565e1460f095e2. 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/HRAA41901270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896f5a4efcf0b2d9794c0ac318f740ff39697f32decec7690e12763cb0dedaba. 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/HRAA41901271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5faa52df2681b66a000f1e4f4ffbb75560d9517d88eb65d46ab215a0ef583c5. 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/HRAA41901272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bbaa53900cc3ec4fc5ad3a21ae337ba7a6c1f949867facc1ab476d19e67c74. 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/HRAA41901273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d532f40805c37d6b82600307a1183b90735b0c97d6e58a70c5ead436a86ecf. 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/HRAA41901274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fba84465aadfd134b2d8b5b208b952393927cebfc7cf98a0b77094216dafe8b. 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/HRAA41901275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf697e33e11ec8cad2a9cbdba1f7dbe069b704f1de15987a6cd554e989e8b18ca. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:20:30Z), 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/HRAA42100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fa414d9e91734020552ba5da19ab428e62f4b64edf203e55f1099673482f3e. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:16:43Z), 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/HRAA42200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7e2876c80a75804a4eefe524e14486079910c2af151d2900e9525e134bf9f0. 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/HRAA42200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5b51a55477aaee5fd341b2c9a38a4ac4088a00851accc61696ebe76fc9d1b8. 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/HRAA42500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984eb2c642cac9013225a45bf17eb6049aea2093650909609de97e60ab053c99. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/HRAA42500152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd4a17f1a5b70cd6a3e0f46c5f1f3683764ab2107f1164faa090a4356f90e11. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:18:26Z), 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/HRAA42500154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2430509922a57dae218153b31da0d905a0755f5513c7d44d8898abd1f2af5e4e. 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/HRAA42500155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5fc53f59556bc8ffd04fb0d2b87c51f55a723a30150d22cd7bd38310980000. 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/HRAA42500156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4616e1b03a10deb39f1804590f99bc48001c40080303de524b696fa793c52db. 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/HRAA42500297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb334fb805ea69d8471083a73c66f84998bb5c8e2d77aed232eede1a152eadde8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HRAA41300026.
Ni chicha ni limoná - feat. Dubioza Kolektiv
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaea5f90fe48009f1fbdcb1ca0400f518046f15cc685dfcfa01db3f14ef78d1e. 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/ES5151500752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaea5f90fe48009f1fbdcb1ca0400f518046f15cc685dfcfa01db3f14ef78d1e. 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/ES5151500752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec55f654c7f4b899b15d95db1353b8534ff418a0a99da5259eeb6c904efd28af. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HRAA40800415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb334fb805ea69d8471083a73c66f84998bb5c8e2d77aed232eede1a152eadde8. 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/HRAA41300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b66236bff4e5f7a8c36f29453a6349474d09e33a2ebb50915080f7009fb549. 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/ITR1S1500011.
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