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 0xa1b04dc3cd14a1e78b7603008706a24398a8779b8f785b252ae020fb07eb8034. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe3a4c6f-d9ab-4a74-bbf0-086f345f5ed9.json and https://artists.proofprofile.net/proofs/artist/fe3a4c6f-d9ab-4a74-bbf0-086f345f5ed9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sai do Meio Que a Brizado Não Tem Freio !
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 0x97450cecff92e58eac5c7c1fd8db51a47f80ed8d988863480ac6343a269c6985. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZTPX2460259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2904f63eb2d135eac6c6593f7a61f289c8a375549887479dd157a978098b5da2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZTPX2459934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254e90e53f4f63e5005eede9a58bb1595ce18e534c12ebb6e8850b5c8b1b55d2. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZTPX2460180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7af9bb20402b82a748c99f9296fd9c28df01f150083d7fd1fccb5c93c29222. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZTPX2459960.
Serestada do Tio 5Hrs da Manhã / Seu Corpo Que Tem Mel / Bipolar / Baby Alô
Tio pra Tocar no Paredão Baile do Morrão / Comi Ela
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68b0f927e311b262dc45437034b5a7935f378da0c4e85644d013ff52b7351a0. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QZW9K2429729.
Tio pra Tocar no Paredão Suas Amigas Namorar / Taxi Bale
Forró das Antigas do Tio Hoje Eu Tou pro Crime / Hoje Não Tô Bom pra Beber
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4b682d77a90e1777e25e2cbd91f3dba685ed6671dbfc0b11493d7db47ab427. 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/QZW9K2432254.
Forró das Antigas do Tio Xote Carangos / Vai Correndo Atrás / Mamãe Que É Mamãe / Só Papai / Mulhereda Lá pro Meu Ap / Festa na Piscina / Meu Pai Paga Minha Faculdade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0c839df50c7d35bea2f7d929c6b5a2a74320af060cee358d4ac4e271e79ec1. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZW9K2432258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc118446496c58d72d87d6561651b5f4f3f1767d49ba9c50f6cb6b3bc5700014a. 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/QZW9K2429725.
O Que Acontece no Rolê Fica no Rolê (Tropa de Manaus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d604556c4a906e1d3e470c3710e816c590a13993f95def59a7e54c7c2c74c6. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZW9M2411297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8859d42f40de622dab84fb695e15e417fee37fa3d16a3b34e8a882bca242708a. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZW9M2411296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ced4ef5d972f38dc2dae72d88dfe3e94a606007037798ffe926b86e386d378f. 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/QZW9M2411294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4485a1ae441edfac456005b29db7d1d2a1c66b3259948bc6c41831a01289c86d. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/QZW9M2405234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bdc1745424c8f608856d025626465a865ab9ec30588b50b373dacda04eb19c. 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/QZGLM2507376.