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 0x5fa04a37d2f23b41a8aa80e0f43ba3823b929b14fc7fe22c48a7d9c584cce712. 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/3ca56809-cbd3-4a16-8919-621cd1a2f884.json and https://artists.proofprofile.net/proofs/artist/3ca56809-cbd3-4a16-8919-621cd1a2f884.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 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 0xff2e63d5e1791d47dfc5e7979b307a4faedcec5b205ce37dcfda2942061eedea. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/BXRJV1600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e5978d347d070c0c4ea454c983886f76c87d2c92cc0b2a77365dcd549be85f. 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/BXRJV1600037.
Deixa Eu Te Chamar de Meu Amor (feat. Dodô Pressão)
Estrela Perdida / Declaração de Amor / Temporal de Amor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa568f5e38afade92eda37a98fa194915450e6d6afa93779eb7b55c6de1bf17dd. 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/BXKOO2400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cdb048cf6c6775706a262776c20afad4a24caea6dc3a101bf768eda62cd023. 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/BXKOO2400027.
De tanto te querer / Tem nada a ver - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf68f69722d8d94188d8e38a42eb1de84b3203d1eb3724bab7ba270e13fd0988. 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/BXKOO2400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbc0048f288e7140b687cd017419d82c4d45efcfcf8e0b7d4c8edc7b9321f8a. 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/BXKOO2400031.
Agora vai / Favo de Mel / Deixa (Ao Vivo)
Agora vai / Favo de Mel / Deixa - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9a0eadb20468acbd950a04eed6933e207e8bdf04d14b36522da31451a93849. 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/BXKOO2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ac77eaf6a6b6e89425fea3ed07bd5f9c7b7fa6e3fdf9c2844417b08735190c. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/BXKOO2400038.
Ainda ontem chorei de Saudade / Marca Evidente - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb813feabb45f7c3f0534e783ef905e5484b4b91d960e58f7b54feaa62a400ba2. 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/BXKOO2400039.
Meu jeito de sentir / Solidão a Três (Ao Vivo)
Sem ar / Entre razões e emoções (Ao Vivo)
Sem ar / Entre razões e emoções - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfc41efdc317b461416dce0304e4107d047a98fd12d37d6d1a33dad8fd9181e. 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/BXKOO2400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9a0eadb20468acbd950a04eed6933e207e8bdf04d14b36522da31451a93849. 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/BXKOO2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfc41efdc317b461416dce0304e4107d047a98fd12d37d6d1a33dad8fd9181e. 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/BXKOO2400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9a0eadb20468acbd950a04eed6933e207e8bdf04d14b36522da31451a93849. 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/BXKOO2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cdb048cf6c6775706a262776c20afad4a24caea6dc3a101bf768eda62cd023. 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/BXKOO2400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf68f69722d8d94188d8e38a42eb1de84b3203d1eb3724bab7ba270e13fd0988. 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/BXKOO2400035.
Faz de Conta / Dou a vida por um beijo / Eu te amo demais - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb8eddabf86fb82660a8dcad8c9e8b5a661206734902608aee19e7a81b8a4a8. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/BXKOO2400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa568f5e38afade92eda37a98fa194915450e6d6afa93779eb7b55c6de1bf17dd. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BXKOO2400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb813feabb45f7c3f0534e783ef905e5484b4b91d960e58f7b54feaa62a400ba2. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/BXKOO2400039.
Meu jeito de sentir / Solidão a Três - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a4b8954261c665e7fc2a7b7bab63c210956609aa8db93a3ea43cbbe8a3d3c7. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/BXKOO2400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c52ec59ba0f9c898162235d1130e258ebde84c8885befb328540d784e3695b. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/BXKOO2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f22ed9ad64c9cf5f542acb9a04844977d91467ddc295658f9a8e6ce7e93b58c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BKK592400008.