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 0x6b8e5f2f29336a51037f9cc4437df26556d21aa332642eb4d3e11e21a4c5051b. 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/0d70edde-c5dd-4cc2-ad02-b61c64f2e5a3.json and https://artists.proofprofile.net/proofs/artist/0d70edde-c5dd-4cc2-ad02-b61c64f2e5a3.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 0xd60bb800731d759e735dbb3d97ac76d64768bb99a0061dc66fc1c3fa33807bfd. 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/QZNJZ2345994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cb0f3855bfba8112c57d84dac3849b2c8b5a1c2b53236e499d7a784cb0cf78. 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/QZW9L2369427.
Te Soco Toda / Poc Poc / Joga a Bunda pro Seu Papai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320ffba6d8dc04c352488ed54685dd0b23e1de458dc8fe9cf15afbff3a0994aa. 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/QZW9L2369428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30971b74cae4133394204c5b16d119eb3e29f399997fbece660bdfb2ae09240a. 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/QZW9L2369429.
Em Cima da Xt Sem Placa / Trepa na Piroca / Usou da Minha Cachaça
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a206d7bde22ca29606d573a36245053215d64635094df91ab5b6b5122c8c66. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZW9L2369430.
Abaixe o Shortinho / Na Onda do Lança / Pula Pula
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aaad5ddf1d50075b2853101cf1cc0dc3182902a2af00c7ab385995eccc670ea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZW9L2369431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e9e2d7211d99b2ccf974d3570261ce0941849d49346b19da94f8daa0ca58ec. 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/QZW9L2369432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f78b040816172c3a9c189e5aa3c85c76a47c42bf9beab79443230324867fc1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZW9L2369433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9466fd44af022acf25332c0e836a5992eed306207a00bea9a19623392fe2bea6. 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/QZW9L2369434.
Ao Vivo É Mais Caro - A Loja / Na Trava / Convoca Todo Mundo / Roça Roça
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb0a16f79cccc0d69371e18d6725e5133a8ceb91c0a5dd85828e3ba59b2fd42. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZNJY2442504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4832f090195257df909ae3b0056ac25db60105af5416b9892c92d7f59cfe1f5c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZNJX2337583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfecd97cb677cb26701e770405f6d88ad2e3adec8492eb79c8878e4fd6a5a501. 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/QZNJX2337584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf233a928a289f4f4c6e186dd60ddbc29c7dfe9b80afb68daef31ad42bde40b14. 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/QZNJX2337585.
Ela Faz DSGC no Pau do Ladrão (Remix Arrochadeira)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404e10791f1abd299a2ec0567386d2719d81278b04b2aedf3f87a19adf54f810. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ESA112558261.