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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106fe8a437b99411ffa6a8a48152381b80cb209e5af9b37197d709cd1f7f8b57. 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/270d6932-1820-44d9-b495-238f5a546fc5.json and https://artists.proofprofile.net/proofs/artist/270d6932-1820-44d9-b495-238f5a546fc5.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9707d2293864a85004b088e90d5c560663210fa62e0505b9f96ab941056f1924. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BRSZO0000321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1a1bccbecc2b22439af461b56a45c23db8e666de24e5aa4b410780ec4410b1. 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/BRSZO0000322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10b636192c8e777e3fc6d3523e407db78631575f2e52e794f73a8dffc3b6fb1. 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/BRSZO0000323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e463239b5f67ada2503c50e9847363029268438addf2dfedff4ea0a4c7dccd5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSZO0000324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc7c9403f1078e623441d66d2755b6fd987d5da905a2e00258e5e05b212de25. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/BRSZO0000325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e538abb60dc359f9b3c5cbd59591db6c3bae40b5116bd6ab4fb2e54add8b23b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BRSZO0000327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e1bcc84758527ed0c23e16eb517340fcd9ca256fdced5f20d518297db17862. 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/BRSZO9800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949c32bbf56b637f977cce2a56193203d998f85de2efc4733695a57186226055. 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/BRSZO9800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85ee31d3335974a62edeeae64195b9808570058ced42e1bfd74f62ab80eaa6f. 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/BRSZO9800249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf257a384e42a132bc4b87775d363baabbf5969a2e0f71a4019dd1c74f24e49ba. 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/BRSZO9600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2d1722dd7236aecb5ede1631a75e6533cb97559063cd55e6a2146776c45cfb. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/BRSZO9600009.
Padecer no Paraíso, o Bem e o Mal - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf917c88657f4eccdf9d84267f1855f96e6a8b4a6a20f79bb165c4e0fbe7e37. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/BRSZO0000864.
Delírio de Amor / Meu Tesão É Você - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a53ba6a35d49f8ab88ad06d870af0e64394a3feade4c2dd1a907a36f60d69ca. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/BRSZO0000866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2d2f3caf83ae58a1102fdbf42eff2fa396b0fa66cb680f036d6c06eac9ec3b. 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/BRSZO0000868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a049712d9355e9b4e3f72ece0e1451cde5f216955b8c2e4d8bc6a2477cc7ebc. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/BRSZO0000869.
Styllão (Instrumental) / Sanfonia (Instrumental) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc9574859f33b6049d931d92ead4c20dc5ef11d1a104a81a30f2bc6d7540c8b. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/BRSZO0000872.
Chuva de Verão / Amor de Fantasia - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b851e4176b4d0651816195c5b6fcbf6d9f15e2ee1c44888010b1dad895610c1. 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/BRSZO0000875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8585f248d39a3b42d28e8337750f941081e6bf44b326f690a200739d4f634284. 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/BRSZO9900053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc138b5d350f398dba9d8f8d348938290de4954b6e65b191fe4ea51feb6f662fb. 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/BRRMD0100776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e59d2c0882884e9b6f094cc719a03d0ef89ddbe5d7068bb258f7f3b8243e15. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRMDM0300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8318b51267e32c7499b68303c2073882a91134cd2cc74898f061c847c1d19a4f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BRMDM0400221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f52d40b19fa18eee7117d489ab02281277afbbe331cacef62c7cc6705fd6c8e. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/BRMDM0400231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c399432106631f619f1bb14c33260bcb6234f61d0ceb0c98c41014f577fff39. 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/BXX042201000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5dee811c9204c65c21403f890f5be630ea5ce42fda178ad7c1c89006576e32. 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/BXX042200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2e23a52dfa9c64d9dbf50692732896087c8a3433526c974cfce26f55685e9a. 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/BXX042200010.
Coração Velho / Vida de Vaqueiro / Mar de Solidão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473c0cdd764dfc5277b15a59581a696ae8e7a98f12cee0935325228ed26da120. 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/BXX042200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb37956856e9f1073a24867f9c60522198394645b68736d147af21c6a0a50ff6. 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/BXX042200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460a51f22b734637abd91e718794a912f9fcecce9f16f9455467b51e92ec7c32. 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/BXX042200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990c2f68f67c876a6597f03108cee037e65ed92871d1a79b6d2e7230d2dcd3de. 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/BXX042200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a012c3f708a14c3e7f33a2f64d7f85f735ec6e8d14104ada12d6a0bc7c4faf0. 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/BXX042200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7174ff0fbf9baabf2ac41e510f9b5aafedaa2a9cab8fb863b0b12bc6480fdaf1. 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/BXX042200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6f242c515f27b9cdfaf8f2ced73f2389821ef4e522f77497bf753bdaaace09. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/ILTON2500041.
Coração Velho / Coração Velho II (Ao Vivo)
Me Chama / Beija Flor Sem Flor (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845be87f55cb26b9e3b31b537d691395cfe40cad3799f524ddcca91598c6a227. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/ILTON2500554.
Eterno Amor / Guardo no Peito / Marcas e Mágoas - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b80fa7face75f9dc6852123dacc06a6559641e8087eafa40dedb8c01efec30. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/ILTON2500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc316ee429150c81d63241c53720caf7b5e492261cebe786bdef7519cd1462a. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/ILTON2500199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba503df2ba34f654c5ba173ab358334471cdf8af6a356b71922ffd3541b61bb. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/ILTON2501415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c4cdd8274294372835a0e4f2fdf1e45a110313a0c8a5ebd7e29d8c3940bc53. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ILTON2501726.