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 0x0100e31877a1f7ee0410b46b9cb8aa793a605aee7bea7bfa986a43da91889377. 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/e6b0cd39-893c-4068-8f53-667ba5d8a6b2.json and https://artists.proofprofile.net/proofs/artist/e6b0cd39-893c-4068-8f53-667ba5d8a6b2.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 0x0f8f857de6c4d6e2f9fb3233757f6d62740b8ebce86ed53d009002b8eda63a3d. 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/BX32F2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5708baaa8ff51e7719a1d1e124abe243ace436ca5fb26da8203c60bd8229f9db. 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/BX32F2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766dc98bf8b394e9d289c383c3e6cc422a48443012c70e557a982a2be3c1a129. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX32F2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2a9a6794507bc2f7d63962a713f47e509692a9d95848f1ada09bb1575dcbe6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX32F2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1c7f5d70d2d14361fd123f5ee45fcc11e0428fa35a8fbdf21cf9328ec79f0c. 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/BX32F2100015.
HB20 2 (LQ) - Bonus Track (feat. Flacko & C'97)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28861ae1cf78ff3f6fef4c4f373ff77a590bb88ecf5e51d29399f675e4959e1c. 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/BX32F2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8f857de6c4d6e2f9fb3233757f6d62740b8ebce86ed53d009002b8eda63a3d. 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/BX32F2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d37966501d051db2a5fd3d92d0d8c0e85bded6065e484a47b149f941942b2c. 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/BX32F2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386a3d0bcf87009e6b3d350b6e5e2f3a8c57e91d81ca7f380072cbef954b0653. 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/BX32F2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26eb4d616dcc2172889ffced11179f6ccb579c23c820016f2d3e41855a312184. 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/BX32F2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2885b38e80708bd59b65ff13bba13e02d2e9416e8a858e8205fa1fae12157ec. 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/BX32F2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ae49a3f138a61114f47a93189de98d3edd970ff35fa4bce5539dca89c43122. 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/BX32F2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b884efa464ffb2c099a639c665fee908348acf6ff45541c59436e2263b6001. 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/BX32F2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4817effadebd0442e0c5ed2f877efb643ed59da5cc1c35428bfe55991e559d3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX32F2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca55e5d9e5021af4b89434804f510c50ff558a646b06ad8920d59af2c977a5ed. 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/BX32F2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbba40240c0f906609e3c0b1cc05ce0019c57ad467a84a9744cccf0fce6bc33a. 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/BX32F2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b4720d1858e02d03cbf58ee476676012cddc108d93df7284ca5060aeb70464. 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/BX32F2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc0d2327656eebdde504617609a051cad7255dd0d1a568f806f2a3aa17c3529. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BCZT72100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5739b49fc7070114fcf856bd3d18b7f7da764dda019284741911b9f6b69ddcae. 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/BCM112100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ced9a8b914700ff4b93f77f40fc0b2569ba1021f1cd1e638f0bb6e571459c7c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCM112100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfea7a5116722e3db5da4b75db0a1aad77d8dbd24a779fd18425be24d47dc18b. 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/BCM112100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1683b25b4283f87d567faead029a3c2d4fc53aaf4fd8af4bc39b4c54c47fac2b. 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/BX32F2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef1c0f3b3bbeb31a3c48c9de29bb6bd17a21894308b90d63f1e1fe431de2919. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRSME2301944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72609ec5db5ddfd1e3de95042b11d8939b816b7730f4765fee1f3d6810a8d28. 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/BCM112300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0a650250205d3dbbec09083f0d535345796037f34e79216127df41c2d367f0. 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/BCM112300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fff284965ff13fd1edc4854cd0b46b21f293412e630cc5bae229f0e045f7f1e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:07:41Z), 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/BCM112200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c236cb8a7dd7e25eaf588428d405deb410aa907d14ca7a1612295b8a5e27d06. 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/BCM112400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2432f381dd2d714d28659040bc3ed97b7dab7fac6234579ed6dbda17805411. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRSME2500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0028aedf02c93db62c989026b97d0f713086da4586ce5c322374624c71b8967. 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/USJI10500721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2432f381dd2d714d28659040bc3ed97b7dab7fac6234579ed6dbda17805411. 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/BRSME2500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8b3764c370d7984622de5ce67e8148d7f9da05459ec03d592c1f7c4b2bd564. 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/BRSME2301260.
Não Vou Te Deixar (I Don't Want to Get Hurt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa928a9174c9ef9f188e861d54ab96e75f51bd568664c088bfcc7fc334480115e. 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/BCM112400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5c549303d7c5c9960467d665d83ab948db2b64ddc94347e77fcb131ce4b186. 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/BCM112400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f548ca65c8b41988cb1475aac68e8abac1f64cd7a570c182feaf8d913e994ca. 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/BCM112400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0f7d0a5370e16c107a60b90bf21990690e6679e348b43bd26872c4b73c5a59. 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/BCM112400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5138afc8141bfea207b5df55a02c8081f13523e3e5e2f5c9d6d508df09c33d48. 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/USRC12402692.