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 0xa95c46f37bb2640585f1d7cef10926fa4fc02946420b15b13ccdd4d97a00abfc. Chain 2 (Bitcoin): anchored in block 953924 (2026-06-16T09:52:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c79f6a7-2f31-42d7-81f3-a144b01d9977.json and https://artists.proofprofile.net/proofs/artist/1c79f6a7-2f31-42d7-81f3-a144b01d9977.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gradativol (ao vivo no Palácio das Artes)
AzulAmarelo (ao vivo no Palácio das Artes)
Dolores 602 ao Vivo no Palácio das Artes
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 0x497d230b79c2cee2253ea68644c4a6c3d0735c1c2de2e60fd79a0572925f33fe. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/BXTAK1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4206974904e0f66f39ad9e0419f6034c87203dd1121574f2ba9aa8f9c72d32. 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/BXTAK1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5159a9173e0bcdb64d20636e7710403908c52aa9f7842e4c6b048683146b27. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/BXTAK1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79436b97a58fb472573eee067eaeb8197588441f12b4b0b4bb31cf44808b62b1. 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/BXTAK1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355c55cfd7081a0a2714d669c9ae3906a1904c0ab1af0590c9eb4d237c15bc15. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BXTAK1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c14f164fb3c5982cb5ecf58e83b18ff4845c465a3cbf25b8989956e6512f16. 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/BXTAK1500002.
Panamericana (Ao vivo no Palácio das Artes)
Dona do Pedaço (ao vivo no Palácio das Artes)
Petit a Petit (ao vivo no Palácio das Artes)
Aquela Moça (ao vivo no Palácio das Artes)
Aquela Moça - Ao Vivo no Palácio das Artes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e19131e3a04835ab9ab1b150866081699b2f775b827a41b06a29374b2deca6c. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/BXDBE2100003.
Astronauta (Ao Vivo no Palácio das Artes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566a561268511ff9baf8007a93e6ccae40e6705d3eccd549322d534c711068af. 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/BXTAK1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0169acc8a1646346547c0bf56a23107ba7b3ca3ef600b26a711401da7f7f3ed9. 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/BXCMD1500002.