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 0xcc188124ce0288f624fdb610c491b1398526945980c1a3da45b0076c5844fe4a. 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/9a5b98dc-b803-43ac-8e65-c2cd26a4be71.json and https://artists.proofprofile.net/proofs/artist/9a5b98dc-b803-43ac-8e65-c2cd26a4be71.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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Circuito de Vaquejada / É o Boi, o Cavalo e o Vaqueiro - Ao Vivo
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 0xade72f03123e84de5762a619297706bf965d50a0298c5d619796a39d297c2ee3. 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/BRSZO9600379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c87c198f3f2dd90e04d905edc96ae76c6de43dfda707d0db0020222cd1d0df0. 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/BRSZO9600384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf13eb58e13e908ccef0466826df6095af8dec7f1fc358cf17b2cfd11b5f76b. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/BRSZO9600388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818d1873473c57229acedc1500f94df354319705f1ae1201907a07f0593930b1. 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/BRSZO9900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5246a97e9cc3c72cca31ff7cac1e7540e882d2b77c6fe218d04a28a80aff53c. 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/BRSZO0300306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a750acf3a61acdfb19c0e52078244c7d150a5edf566c4580a35e74a7acbb021. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BRSZO0300311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c20c39479019e6b57e1087725d28b5a315d15981db063e895d13092f2a2ca19. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/BRSZO0300312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe33d4400406a371a24f39d7fa7127eae532fc1da988dfb6bb7119c617c075d. 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/BRSZO0300319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3563617ea2609dad14eec68ff3d5ec6e42d0c612fe8f0398d28861a66d0a7d5f. 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/BRPPD1900282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74574705ddc88a1a6b966fb383d64bf564b064e2b82ba15012319a26d890b2dd. 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/BRPPD1900283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c142bfbf1f603a7edf466ff224fc87ebcfe39827aa18ad18d57767f6fad0aac. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:10:53Z), 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/BRPPD1900285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55211bbe8935b2eb4d50a2f951981cae40e9fcbb5a53c8fd21c34d0c411503e7. 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/BRPPD1900288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c87819d110ed6eb0306c3b582adc63012cf50fa0a6fa0828d1aa28be38c5ef. 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/BRPPD1900289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad2076a5da26dec983e16f745bbfe70b9ad57eaa6ad324559c18c47ee3df328. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:07:18Z), 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/BRPPD1900291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d77ce42e987bdab8cb20b72d1fe993fc3b7eb68c8d52cfca2a3516b4d3681ba. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/BRPPD1900294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6fca58002c71ca11979eb14a87210f7d7d38f236cab5378059d2b3b78d596e. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:55:13Z), 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/BRPPD1900297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad249300d0f95177cc4aafff174019d3ec59e164653d483996a5805700d7c63. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/BRMAX1402301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee89a8c5fefa6a05234d9565bb4f08b73be5bc3d3c5a4cbd430a1ff6340ee86. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BRMAX1402305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa572f77e582b91e070a8951dd5d420e5194dbef67a1f482fd4aa7b0bb4a8f217. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/BRMAX1402307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3db07da43423683044a39ff778b64905326acfcbc471d364fb6283a00acf0a8. 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/BRMAX1402308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab81c9b7f467a1fd5632b322cb52f3373cf3c5f02641686b39124f08de957cc. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BRMAX1402309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bcc89f11af326ccb58b39cc1fea4d19778fd16326afac3ce1b2dbaee99c573. 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/BRMAX1402313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7942900aeec565545f6f4853478b0d1d7e1b91b735f8ee0c8ef94438499b35fc. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BRMAX1402314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d519937284ce84d3dd71f497ffc4890238207c4465362e15f30a7b434c70ff. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/BRMAX1402316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854a84c6c598ffd7c6003656684ca2da89a89832883eb81528d9f7a3780815dc. 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/BRSZO9700316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf443c4c10dab497dad0766209a2833eaa01bbecc5deac9ef4f7da3fc5d01e3a4. 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/BRSZO9700318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9734409ca213a07e83b78f4027188ec0375769417fdee06d56cc2bc538734af3. 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/BRSZO9700323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78856931c0807c64a36c37bfc834b242fbb2e4d2b4ff0b89a17080348f71dbce. 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/BRSZO9700327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98179087d858303c2a7092a00b2d41dbeebec4c0e52cea86bab0db864493ea9e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:56:11Z), 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/BX8ME1900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80923391d5a6faf7caa22a0632aef5ebc1afacb294e0960c704a9edd05d8d4b1. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:47:12Z), 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/BX8ME1900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a75a916a96999a0d68e012f2c19d7f2600f3e1df797efe2dd440650a2361977. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BX8ME1900036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb252fe49ccacfa88b8756c1934241c21c8a1a446b176077e3e12e0fb96f5616d. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/BX8ME1900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e1cd652c97b37a9b8d69a59008bede8168687248eddb1793f5945a72b9d470. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:26:16Z), 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/BX8ME1900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3056516b84b3b74a6cb007cd73127d393b67d2b3a3eff240bef899724e6c67e0. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:56:24Z), 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/BX8ME1900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e45d24d3af26e8dbcd80a795fbe4c8e08da061c92188b86b54363453b0f6755. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:36:42Z), 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/BX8ME1900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc62dd6d96dd3062fe5484eb3652752ee7fd31e248c24c6f35ea574b2636c2c. 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/BX8ME1900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b313226038c327f606e7c279f86e0097928864d1dba0335ba25a1a751e9acb. 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/BX8ME1900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e53124ed8f837baa170e18fcf95ebc92c129417a507988de4f2ee0c5524272e. 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/BX8ME1900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3856774e011cdd2326c96dfa11e9aafd862ebc6e5a546b36b8e42df1faa6161. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BX8ME1900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d2cf2a68b4b03bc28cd2f21cbefaba0a614dc056e44ac943ae45e7b52e9359. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/BX8ME1900039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276b392933987cf3e4bc52467888e72bcdb055fc59277adda44ec70326438e0a. 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/BX8ME1900049.