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 0xb7f4edf9521d34219b7d85e4c6219daaff5290aa65bd543593a5bacb091ff39c. 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/f2c3a3c4-0893-40ec-bbb4-e4cfc64ed857.json and https://artists.proofprofile.net/proofs/artist/f2c3a3c4-0893-40ec-bbb4-e4cfc64ed857.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 0x98ceb20dc79bbeb6adb96bf176a115c8fd4215c64b1defdbda0f34f760e2fa7b. 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/BRUM71002861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8807ce3d0b8d9fc04291b7ac739bf12eaf0533393030806b53b812507c21688a. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRUM71002863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b2e60d11a052cbadc0601c17e5b8fe4bce786a2f5c1790ca73f0b16ba0cc5e. 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/BRUM71002868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa095daed0e58d5d82c44c102bfeb1691b1f05d87aa9b2639ea9fdaaefbf06e73. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRGRV0600088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe2f53cf27e8fe00f5943c1cf28f8c1e2c17aca296154f3d013364a32041df4. 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/BRGRV0600092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6345e229108868edfdbe24d029515c8e7013ea0bffd888ee7af17ff015470d22. 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/BRGRV0600095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafce8c3e54b04a3a20215c3bc023103bad91ae8054da5865a2ff9102d74ef60. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/BRGRV0600100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5409734f1a1be928cdd3fad8b4a31cb99765c02a5d2decc26d38516f102238b0. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRGRV0600104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c36a7dabb7c1f7882dcd490f54e613182b1d0a92cee1d3d2bc336abfa6ade8. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/BRGRV0600105.
LOURO SANTOS & VITOR SANTOS NO FORRÓ DAS ANTIGAS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64a93dccb2f7d88c5f0bacb7b6db4e913532d5b83d021b725fd55235fa06844. 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/BX4E52265124.
LOURO SANTOS & FORRÓ MALAGUETA - AO VIVO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3f6e5dc851c32440ebb0718d589caaeccae7feadff0e3d7f65e1d6e689ac03. 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/BX4E52265144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fd28b44cef8ac712045565ed90e1c0eb35f013254b27b3b61afc5b55d5a186. 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/BX4E52265145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c111f2b4a6b2d221de5cbccb79ebcb3dc3d8248e37385e669dba76f4bd4884. 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/BX4E52265146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8130e13c2b4a776aae7345d2c9718108b77abba7d56ee11e1b4b3be9a96defa4. 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/BX4E52265147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96286b5921ffcffc1b9d56425b7836f830dd090a8bdf8e61c0d19d951860992. 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/BX4E52265148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4836273ff906445df339d10705fdaecc511e306760a48e83158fc235c63fbdcc. 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/BX4E52265149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dddf01a7f0e3990b8bd56951b6325cac555fbbcf2028486112ac48191d02f0. 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/BX4E52265150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1c4424123f7d9d44c4d528e971db6aaee89addccd71794a83e12ca2e77958f. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:33:01Z), 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/BX4E52265152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b9b00de712dd578c90c4c012ba689bfdfebea8b403ecf624561726231c4004. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/BX4E52265153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f723c7e5e2e0b27ac493271bafd65720572ebc0c5cc56e88270f86b06eeb14. 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/BX4E52265154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a145d1e96dd51bee6f5ab0997115fe5333b5215b5d5c9fb8250c638933716c. 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/BX4E52265155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ba70a668a0581f59e54839b4dcdb35ed7d802f92e8708fdb00bde39caf590f. 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/BX4E52265156.