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 0x08d25cf5422c540aa74c6329bb464e48a342d4d3fd91901922f1e25825938344. 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/eaa4c320-78a8-4701-9e4c-f869bc3b0715.json and https://artists.proofprofile.net/proofs/artist/eaa4c320-78a8-4701-9e4c-f869bc3b0715.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Um Dia Te Levo Comigo / Lendas e Mistérios / Pensa em Mim / Receita de Amar - 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 0x3dd1993fe08a3bdf3392f6f1104da4eaeeefee7d91a5bf2fc89bbde9239746dd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTPX2211307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd1993fe08a3bdf3392f6f1104da4eaeeefee7d91a5bf2fc89bbde9239746dd. 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/QZTPX2211307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe71a09041c7d7ff2c44933c3c738739604e8d15ffacfdfbdf7f50b922a07e68. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/BRVXH2200009.
Duas Camisas / Estrada da Vida / Canarinho Prisioneiro - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b7e65e8cb7e3ca47a34d6b9632871e0c828cd66209beba4930c05c5dc9f591. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:50:28Z), 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/QZTPX2211310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ca3c04777d30155203ef7d15168f69d02ad5b39b7847db548b440482ffb957. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTPX2211309.
Liguei pra Dizer / Coração na Contra Mão / Tire Seus Olhos dos Meus / Porta Retrato - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd093238d38775b46389cc6898b7623279eca396358b6d2255828d553b903b7. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZTPX2211308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08289fdd905cd5006aaacd1e64681b317d51ce5300161300ac77ed67f1b55633. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T08:36:03Z), 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/BRVXH2200008.
Paixão de Peão / Apaziguar / Parece Castigo / É Problema Meu / Bebo Pa Carai - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98639029b88679c11ca70923cd5b9db34e527c7c62144ae911713cf79315c5b1. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZW9L2217234.
Temporal / Cigana / Farol das Estrelas (Ao Vivo)
Temporal / Cigana / Farol das Estrelas - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d0044652ca37c17fe848c67cdb17d869b7e9077abf07d0130144e2376ea19a. 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/QZ5AB2494240.
Quando Amanhecer / Quando a Chuva Passar / Amiga Linda (Ao Vivo)
Quando Amanhecer / Quando a Chuva Passar / Amiga Linda - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0e0f2d6cfb61d519026e42ebf6086ee56464bd6d0e39b7219eafef67b69832. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/QZ5AB2495795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9abbfccdde5e2c02e03db06c5de73b1436dc624bb5729f0c9c725a6c280316. 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/BXTB12400042.
A Carta / Paixão Proibida / Vestido de Seda - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf97e18fc6e43e598f21e6ead1cb5d87ba6b027ddea02efdad12dbd4d67f9ee7. 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/QZNJZ2470133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0771c488588d3a4e1aa6d49dba74ffbbe7dbce05c36547314aea70f103bda301. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:10:47Z), 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/QZNJZ2470135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57201ed7972ea28978c0d3056311ea74fc9d85324bbbfa6a54dcdb9065719212. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BK3542500001.
Amor de Primavera / Amor Distante - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3357f253146e6c334175f591847840c0a910e0bcfbff411c58d8450869c81b6. 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/US7VG2512895.