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 0x6308f4c639a890c2a171febcfcbb4f121cdae94a6c20fcb94de8df84bc6d78d1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ad14b96-a0ba-41af-b65b-33a21a8f35ea.json and https://artists.proofprofile.net/proofs/artist/5ad14b96-a0ba-41af-b65b-33a21a8f35ea.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 0x06a19520ad51bc72a290d2c977a5b9e81a5b1951cae7558752ff5b7ef933be65. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRKUA0519905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f2d926ed3d66ff70e5e9366a26e73ad3e1a3a4b072aab223e49e898fcecde6. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:51:03Z), 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/BRKUA0519913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f43dbb24b26aae96698a19f8a543af08908e595e99530f6ef7413db054487e. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/BRDI70700502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6682efb3c9ce840a93a97d4560e4c27f04d8f11baabbb5bd085a430c5f0817d6. 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/BRDI70700503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201ab5ab3cbf5e0733404816e70b834e19053e67f8f1091642d69036e89c5539. 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/BRDI70700507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb055c9ee8761109d0adf93460edb502e7c6c5d5c8c4fbe2cb899a7dcc6d2ad3c. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:03:03Z), 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/BRDI70700509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73645db0db593d1ea3ceeb00239fada106c3d977cafa411efbab7e5dd2e7a31e. 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/BRDI70700512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c91de8c35bafbd936657b3aee1204e48f831dad611b84bbb8f0e199fb411276. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T08:36:05Z), 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/BRDI70700514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18c3a116473c703150ebfc6ba46cabbf3dcf5a908c8302210605fb41cd6d93d. 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/BRDI70900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4077ba0123386503f83fb1b7440aaebf944cae0270352e0e855954e574a7d67. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:49:00Z), 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/BRDI70900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469c55c449e84e9ff167cbeb3fe14a3042bbe72ad786a8f273abe2f2eba2e0f1. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:15:59Z), 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/BRDI70900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa009e3d86e3e145727d7d317c48e52ee23de7b10dbf99979f5bb549f4598d120. 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/BRDI71100294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2340211ec7089cd8310890e904dee94ffaad28d9b2874ba946ed72b4e578fe52. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BRSZO0001138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f806e20090e9a23b8ec68c8aa21efa36b526640d45a01112ef6c20d4c3282e8. 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/QZ5AB2176456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeaa9257a546ff22763c2b2100d65172fccc4732e35ffee8cb17856c553dc478. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZ5AB2176458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4925531a02c17683e1c1ca0771f8f2eb5c56ae7a45b4bca745a1c4978bf3f941. 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/QZ5AB2176459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd1a49f54709f2eb265fc0698b8785ac433e3ab611f6bfc564e6e02dac02788. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZ5AB2176461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e2c6799596e08aef7dd542624f97c603f7816d6413982e1c2bdd4fc0646687. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:17:11Z), 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/QZ5AB2176462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3a77bbbf2b65b5a9f6eba520276cc2c89c91203c01ec26b07b93462eed6dc3. 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/QZ5AB2176463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8072764e2bf4d05b1106da7c108edd8f6f0e5d38a8d9c17f7d6e4a2430de5b80. 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/QZ5AB2176464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa326257f31a41ab406e61f343d5f3b996e6c01368802fda45e2ff342fee65a8b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZ5AB2176465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f9c28fa8eba0165e47b3d62209f1743ed1d131855f9323823627335f6f267e. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZ5AB2176468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ea596ec90c984ce379a75db10b48f216a608d88078db9ed8a4520e6ff33e4e. 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/QZ5AB2176471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302a89a8ad5c4aebb8a9a0c93b2f41f333a6bceeac0c2e1a94b936b3729375b4. 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/QZ5AB2176472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3232815429aee4169eb123dad98578f15fc31e54c014e58212ed38854b81df79. 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/QZ5AB2176473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cb1cc248f992321e46ce8144457172de3f7d46baa68a1e9d35af79420750bc. 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/BRONE2300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf283c96623ffcd2530233e359dd9ad2bff076ba54ed795b8a3b033edb46847f4. 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/BRONE2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf283c96623ffcd2530233e359dd9ad2bff076ba54ed795b8a3b033edb46847f4. 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/BRONE2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05eaa1aafaa8cbd79e93a2dd0b50c56a240833a777efce9fb29495ed2eea32a. 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/BKBUH2300148.
Duetos - Homenagem a Luiz Gonzaga e Zédantas (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2959536b8faa83a9c0cddda1997eab92c07166a4748ec9d0e5498c10c40b95ea. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:41:46Z), 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/BRE0P1300026.
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
Toque de Pife/forró em Lagoa da Canoa - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24e068e3fcde355702e5903c6122c115dd290674958e9abc276065830aeeca2. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/BRZAD0900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc334117683de64b2075effa61cca8d5d5bcd66de67c786f0cb4cdb571d00c663. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BRKUA0209710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec999bd4f56c872ef26b5ecd55fc18f065452090151187da90c25946eb85b5c1. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BRFT82100242.