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 0xe26f76d803ae6b363d7a8a6887988ed9c1bbe1b6c5794cc5299a97f422a930e8. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1edb854-1d2d-4d61-9162-5f62381e59d0.json and https://artists.proofprofile.net/proofs/artist/d1edb854-1d2d-4d61-9162-5f62381e59d0.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 0x8953fc843de43cc07a39f968d308fb553d1b5b33b9f764154e8aefe00feacfac. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRAPI0601459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b35af8cd83ea9e47dd03ef5e5afcea5b0258731353d9e3c01a03ebf5da8106d. 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/BRAPI0601462.
Sertão Caipira Universitário, Vol. 1 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d467cd9c8a1006b9f4b8937506f54c43126636367d42c50a3a6e784a83f2d6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRAPI0701418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3409eae2ee9d3b411f402800322588a003f1fe1761752fe1f6bd8562f04e0208. 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/BRAPI0701432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601856f05f651e24ba94d50e5617939ce259d2211f64fad06f7dfe40873d7edd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRAPI0701419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1befed790fefe53659b8b885453bcb6245a9fd3e92979e6ecc9cf275ca834dc. 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/BRAPI0701421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0c7c06cc16f2bbc3c8341d870b133ba0184f57b959e9d05f09b8c30ec78bed. 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/BRAPI0701440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d493df29b408e593d8878970fd7b1dd15c7fd2dce38a56e353a39db9139fd97. 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/BRAPI0701441.
Pout Pourri: Mariquinha-Recordato Paulista-Mocinhas Da Cidade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebccea346078d4c46a6b2b8726247961a449d8047d42e57dfea4aede3ee590f6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRAPI0800550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced6685c2d6fdb3ce12ffed7d67ec5c2eea80ecc5c8086932f1bcad41e559f2e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRAPI0400598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a53d4dce922f5b564e14752bc27b033ed5300353e41352917cd76f3a0f2520. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRAPI0800240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac3c49811524321c44163477df9676dbbbcecb6af4fc23197980abb22ceb3bd. 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/BRAPI0701313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a0510b84ad74d0765172c77d068fe262d7840d028b5dd07b15767fbdeb34e1. 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/BRAPI0601580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213db141ab48505af0c260e46995c515ccaee504704d55e6b0f6b556fcddcc05. 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/BRAPI0702104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed205b05f2ae22933e9f379c508fa7700833a4f433ab59fbe486b39d4ff11fd. 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/BRAPI0603217.
Campeãs Sertanejas: as Mais Românticas Vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f1d11bb9192376f7f38322e6deca949aa473a30b71e84944a6ff26e0b89860. 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/BRAPI0701387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955d2dbda2e63dc1406e433dc365a8e303aa3a4e5688c0f2d6cfec9868e5b7bd. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRAPI0200663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec07e434f3c0ee927222898d06122300486752c4ac8ef208ccdcc72bacfeba8. 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/BRAPI0701312.
To Indo Te Buscar - Do Brasil A Argentina - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972831948669d4a908320776eedbce3a0557222f0f64919e8ec22d89de5758d7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRAPI0603407.
Radio Festival - As Noites Românticas da Festival
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fb00baf14105b74e9f2b1237bbc6a99c9ed590e80b75d508096fc709afa167. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:05:49Z), 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/QM6MZ2115870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1accf96a627526996788fb1f1e3d61882468573bdea2f0de55597846fc4925a. 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/QM6MZ2115871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979499d6b0c22c57a74f9363c30ae809b42fa08f5932c518d8655a96eacda57c. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:36:20Z), 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/BRAPI0400608.
Campeãs Sertanejas - As Melhores, Vol, 1 (ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3122ffb81efb1c85b9993633c0a2309ebe1355e6cc4d619addca6613a4bb4508. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BRAPI0401692.
Campeãs Sertanejas: As Melhores Ao Vivo, Vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2132d15d204e6481f51e1c0a7266b448ea36f6f74d6bc727f9c1cd7c5ceb9a9b. 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/BRAPI0301046.
Comitiva Barretos Rodeio - o Chão Vai Tremer!