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 0x32f6136f296883c9886751ce19ba2050dad6394122032a5299c12f7862478de6. 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/40ef54f5-3b75-4429-93f0-893bf7e18121.json and https://artists.proofprofile.net/proofs/artist/40ef54f5-3b75-4429-93f0-893bf7e18121.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Parque de Vaquejada do Viana, Varjota - CE (Ao Vivo 2000)
Toca do Vale & Balanço do Forró (Ao Vivo)
Parque de Vaquejada do Viana, Varjota - CE (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 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 0xad8808ae9c24edd9000648827cdec61c3479914e9c979b57e1a49f591712113b. 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/QZW9K2280650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86608923f807cd2caac80d857e263d09f9add6fa1a81142deb8dd48061e2374. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/US7VG2349378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7400d1bed7b3e94c4be1a11064a3d0e1373a16a418a7743897a3880d4bc0c29a. 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/QZW9M2285163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7868faf2b872eb626ee5095adbd0d3adceea0357d33d8aab9c2c1897f702e3. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QZW9M2285164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3621b17fd1f0bf3a23d4832643403ae97950d5b03875083434a302a151368ada. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZW9M2285173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2a9fd6716ed36a14a1da10257e19bc5e6d8612c12b071f7d8de401c9317aa8. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZW9M2285179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54285df1826c42a2b21f6f221473be520f75662654cfc613b50462636a31406e. 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/QZW9M2285144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54f616cad5f406bb478371f947ae6373f38a5f354f4ab0873c14a0972768619. 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/QZW9M2285150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19150de1fd94b2d921c6cbf32b5ed473d7abba984e3eaba4acab95251d7c9a8. 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/QZW9M2285156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5da89f49e73c75d02c10babb76adef893205c1ba6530cdcb1db03d160e3605. 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/BRGRV0301521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccf9024dd7642641cddcb761f21f89ac6d05dc2a2f55148fee49bb8dc7a93b4. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/BRGRV0301524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc210c55aeb5b471f4d2d003820f40da86d2b744a6b547137d12855679a8f39. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/BRGRV0301525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141eb7d84fcee93184ac512d5245fb57847927d4e2ac91b82bc699c1b00734b3. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/BRGRV0301526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d70901417003be6bcee12540ec6084e8cb0b95a87e0913b018c0b4a46e6694. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/BRMAX1500796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae61b4209dbffdb6d9e71b4b6f01d870cfd442f9f2cb57a9135efa639c451ce. 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/BRMAX1500800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb900f3ff5d31931c8e48d99934a32f7f1fe8425f8bb0d90ebc2e4ef639843047. 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/BRMAX1500805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9013b7f1525a5e31ce56100bb9abd1598c210a650571e6a5bc23d419a4ecb49a. 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/BRMAX1500807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82b38052e98f8cedbac1df70719ce72e13b9c5c46e85f0c165075aab704b55d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/BRMAX1500808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428d3583009c8944f05385c699412409a168fad3397a8e74b30dbc34a8b2dba5. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/QZW9M2286155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd83dd8818c12091ae6b459ecb0136cb277f618eac0e521c85f51cf3d207f4ee. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZW9M2286156.
O Quentchê do Forró (Se a Sua Estrela Não Brilha, Não Tente Apagar a Minha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59ed1bc309fa3486babea5046bf6252cbd9e1509947886db5a15f4d178dbfdc. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QZW9N2203295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1169d850901d8492fbf0a8623023f55437db27ed926749ec1607cae4836b5bfd. 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/QZW9N2203303.
Repertorio Novo - Ao Vivo em Barbalha - CE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706afedfdea6a189bb260979948c30e920fa18deddfe9d822e0be9f292262a3f. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/BRDI70701085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cc370dfbb82ef6ad2501c0c0934fc0e1a88a4f021761d80523aabf8bb78ceb. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/BRDI71000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4e64346085983969ab52e8cbf0c0b5c7558f98e3b7945ee6513e899b4f7547. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/BRDI71000037.
A Consagração Do Rei (Ao Vivo Em Fortaleza)