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 0xcf900991d0b7e52ed23c9ee15b980ae9a78457732cbd7d1d432699c81f31db2c. 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/1741571d-057d-4c2c-b4f7-cb32cabf541e.json and https://artists.proofprofile.net/proofs/artist/1741571d-057d-4c2c-b4f7-cb32cabf541e.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 0x8bbf2bc4bb69fc0b9abbd638ce3820595eb0680dc2c5d9b660a248fab33e3a80. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZ5AB1710939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab46381a0ca76a778cdd688100d8ea235c422488c4cbdd3c57e78768ca13854f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZ5AB1710940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf941968adb3188317873795b3af4bbfb9398d01a7bc5725dbaaae4405a1b0d8d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:59:50Z), 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/QZ5AB1710942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603aa19f505d64503352c688f110ae82bda06469b93da1e8f878902d156a51db. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZ5AB1710943.
Mania de Pegar Mulher / Caixa Postal (Pagode do Zero19) [Ao Vivo]
Boa Noite / Eu Não Sou de Me Entregar / Engano / Faz Assim / Primeira Namorada (Pagode do Zero19) [Ao Vivo]
Agora Perdeu / Já É Madrugada / Greve de Amor
Pagode do Zero19 (Edição Especial), Vol. 2 [Ao Vivo]
Só pro Meu Prazer / ⁠Simples Desejo - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96bab716bbca607844091a8bf93f7a6a35147ad467ad1821882f966cd77bd41. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:41:35Z), 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/QZTVM2570661.
Interfone / Só de Olhar / Trovão / Cadê Aquele Amor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba1ee235891db88ee104e1e73fcb903cf9dde25debfb76ce95e3e5a3747d998. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZTVM2570662.
Boa Noite / Eu Não Sou de Me Entregar / Engano / Faz Assim / Primeira Namorada - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262458cd4b28a3f41375f869f4c108bcbe14204db4178407e26dbc2979216a74. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:21:49Z), 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/QZTVM2570663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0ee21f3279ae62943ff5401b28e1c01477b0cfa4451c8e70f5ab2e3b41112a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXKG22400640.