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 0x36587c9b537424645348d3b523ea2007ef92cae45dfe05b65e5b80e007f8e1ea. 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/4ce7b1d5-202f-4b3e-af48-88026e2202ac.json and https://artists.proofprofile.net/proofs/artist/4ce7b1d5-202f-4b3e-af48-88026e2202ac.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 0x8e90e809a5b789087297f2368ca5c2e64c82d7f69003ee213e447fe7a5c8f55b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZK6K2098660.
Vida Melhor (feat. Bené Gomes, Carlinhos Félix, Gerson Ortega, Mariana Campos, Massao Suguihara, Nelson Bomilcar) - Ao Vivo
Legado 40 Anos - Ato 1 Igreja no Lar (feat. Bené Gomes, Carlinhos Félix, Gerson Ortega, Mariana Campos, Massao Suguihara, Nelson Bomilcar) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f93d57ff9fadb99cbde940e57539853da14bee2a67ec14d0821e4e5813a955. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/BRDHH1600009.
Razão do Meu Cantar (feat. Bené Gomes, Carlinhos Félix, Gerson Ortega, Mariana Campos, Massao Suguihara, Nelson Bomilcar) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfbe6f21b8bc8c6b702247d2da3655bf55deabbbc111cd59961950ec7e9c83e. 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/BRDHH1600010.
Verdadeira Libertação (feat. Bené Gomes, Carlinhos Félix, Gerson Ortega, Mariana Campos, Massao Suguihara, Nelson Bomilcar) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7fe129ffb69d3ae477a6910df8f61648143ee0707293d6c5c5fa5c87fb0c372. 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/BRDHH1600017.
Celebração da Unidade (feat. Bené Gomes, Carlinhos Félix, Gerson Ortega, Mariana Campos, Massao Suguihara, Nelson Bomilcar) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81598382f37835d0d6e1119c2791205ee7ec221185d7a9bdfe8cdbf33ed26d83. 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/BRDHH1600011.
Nesta Geração (feat. Bené Gomes, Carlinhos Félix, Gerson Ortega, Mariana Campos, Massao Suguihara, Nelson Bomilcar) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91abd1ef7168aaaaf6945600f2d74144b020bf98203a253e6b70c4b74bbcc7d9. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/BRDHH1600012.
Eis-me Aqui (feat. Bené Gomes, Carlinhos Félix, Gerson Ortega, Mariana Campos, Massao Suguihara, Nelson Bomilcar) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fa2388d0774e56c4bdf8ecbdfb1f755b93aeb01107bdb02c24f666fa828bcd. 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/BRDHH1600014.
O Nome de Jesus (feat. Bené Gomes, Carlinhos Félix, Gerson Ortega, Mariana Campos, Massao Suguihara, Nelson Bomilcar) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eaab16225be2843d254a655a825dbfdc4db5a880a50a29bf7bc58b5ee4747f2. 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/BRDHH1600015.
Opera Nesta Hora (feat. Bené Gomes, Carlinhos Félix, Gerson Ortega, Mariana Campos, Massao Suguihara, Nelson Bomilcar) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05d88265d199c999d962804fd5b66c3c92ab4b67a07406b7ad9762a8440c1b2. 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/BRDHH1600013.
Pela Fé (feat. Bené Gomes, Carlinhos Félix, Gerson Ortega, Mariana Campos, Massao Suguihara, Nelson Bomilcar) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051a323da7ee25acde2b5816ccc35d63e398137d26b07486dab895d19aad091d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRDHH1600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d96eec361e9f36ef29b7228a5830bd7cc6c1917b9dd991fb8c6b10019fb612d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BXOHY2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03dc3055ec87492325e5a312199ea183143995dbc4aea29fdb9fd887efb90fac. 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/QZDA52529219.