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 0x0ab4a03df996e7746e0dccc4ec6bcc18b2e92f5501a27a0681429d7348bcc05f. 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/e0ac24aa-17a9-463b-b6ed-9f683f6b6388.json and https://artists.proofprofile.net/proofs/artist/e0ac24aa-17a9-463b-b6ed-9f683f6b6388.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 0x988b879315ee3f953a0ea5da9909e99667ef58688c42d9a768dbf5e54b524b30. 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/BRRRJ0700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c49c8de57bc435d66ef54244747fb1220f437191388271768b725f00f3f592. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BRRRJ0900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b825ba9e61d8909b179c6653874ff4aa739a9e841ffac0421504199e589d9c. 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/BRRRJ1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf709513c89cd5b103ab850f1b2b6e429b02552146a828d94cba2fbe2692a44e2. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/BRRRJ1200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de5b3c96acf318eb1bc53e480910ef658e5978c09cf0314f4e937812c1187f7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BRY6K1300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e8c18298713ee92e6ec591605e1f67b9ee1f6b0d98d5630a0e4322914ce0ba. 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/BRY6K1300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb729aab6990ed35c4cd24b70508e60f8a52d704a8cb026b12a203b5e4b30e0e. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/BRY6K1300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5c487e3c5e666a89933658c0415562dc3568b8a55a60dddd9e0830d73b91fe. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BRY6K1300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7503653260cc24879b3bb588756ae13afba0b4344cd86360c38a7ed16a6662. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/BRY6K1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4996559f7c0990890c62822d46e2d17c4bfce3456e4abdf162c7ec14a5f818c6. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BRY6K1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789382f3cde35ac8c63d0f96ea14422ee4657a429ab4e2b5b791a749fb14b19a. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/BRY6K1300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45cae9e73df1c7315e99cae3b90fdf4a23c41aef41a35afa3693bd30e3855012. 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/BRY6K1300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8606f219a58fe5b436c7118e4a0d3c0e4e18a3aab2c8c1f7a58bd31c5806b48d. 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/BRY6K1300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bd332862b48b88c11dfd1b426f171075c8a7ccb3c50ba659927ee1a9a75ae9. 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/BRY6K1300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e73531f8be50feaeabeea545bae18e6083ce45ece121dc70f3d1db37c171c2. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/BRY6K1300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ab50e0b5c37ac0846abd4a003b0e9f443aed4694720aed8c06e45cf870b038. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/BRY6K1300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4ad73a536bce5535936ad9c917630b67877838013f0c9a23ecdc425c6026fa. 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/BRY6K1300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f42f7031e75eb181986c8dcac9bf79523e018e1ba493ff1010ec8ea5e9256c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BRY6K1300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550e8ba35173282d5989702172cbcdb9f69c030869d89d160f5165e5181fca65. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/BRY6K1300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a846751f23cc42659144422ccdfa0ea4810e3a49f01ef1ebff264b5a0d0ef4. 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/BRY6K1300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136cecc5dda260ccc5a21bf6de3603171201e0b9a28ee2de7c3beadad190a386. 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/BRY6K1300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd0431b29c140866c0d4bb996f7624d8d8d1a48760c440299b474bc756dcac7. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/BRY6K1400001.
Na Veia (Participação Especial de Marcelo D2)
Lina linda (Participação especial Sergio Mendes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5f707d9885015e8904b063564f2c5592948570f1367a4a69754f2ba6aae89c. 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/BRY6K1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9b13ac08f461b4b967b1c93a9421431e9c4d9c02782d13fd99f77985830220. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/BRY6K1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca856bc0eaf9cc7338e2d6155db95055a03cb4040834c7885d826d3ec1377cd7. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/BRY6K1700016.
Vai Viver Curumim (feat. João Donato e Alice Smith)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64a968608b68c3174fee9030ce3992ae215e6ac429ad5c0ce756b01a02ad3bc. 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/BRY6K2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9020ffc53c17745ea84aac77ac558193403b96b1b3cee756e34ffc254546c810. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QMB622200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb993aa855266fac9fd2c54d9c99d01758cafcb73beab387207a1274383b1c72a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QMB622200161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b80ebb468a15654883d9cc4220de6ff918266320797842788250906afe1e20c. 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/QMB622400607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5e44cdc80f3030d70cc081133f68064c0e3e88205921c38222296363e83586. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QMB622400614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a7e6d5dc9edeaece699c0248382e9ac64ca2cd263610c8c3b9d0ea4bb6174d. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QMB622400615.
Sunsets For Somebody Else (feat. Rogê) - Brasil Version
Sunsets For Somebody Else & Big Sur (Brasil Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c045885cc36d4f615710b6c0aba71bd3d11d3956c9d4386f3cd492a382bd8a. 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/USUG12208033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ab8072fb127fbfcb277acb805cd2d49b39ec0a4bfb87a0a4aaf495a5dd3136. 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/USUG12208034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2573585a2b007d21fa40678ff173bde5402810fe05c164c330855179cb72aedd. 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/BXC7X2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc033294fcbf31ed61b4f8cff97faa1ec3f4f74d10f8ec98b2653d1b0cd4f31bd. 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/BRSME1800822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55ace813c68577ec04ab12d497d248059c5f10e747f27ade7130d477dfdbced. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FR1T32002110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcd0c8167a3f444e9475c497dbada0b655f97d9b424f71faa66db13ec5955d2. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FR1T32205010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3565714dbb8da2af7561d63806c390cb0e7e078fa360f3251595a9ab979e96ef. 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/BRWMB1500165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3565714dbb8da2af7561d63806c390cb0e7e078fa360f3251595a9ab979e96ef. 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/BRWMB1500165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37d2eb05681c830202e3afaff68209f1a4ee274d0ef028d22a67f34840926b4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRRRJ0700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37d2eb05681c830202e3afaff68209f1a4ee274d0ef028d22a67f34840926b4. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/BRRRJ0700007.