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 0xffb9219b8efef5a7547c7f545f176dc985887dbc31eb25de9f784a181d3e8424. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b09c2d0e-81d3-4515-9a4b-1743f0dabce4.json and https://artists.proofprofile.net/proofs/artist/b09c2d0e-81d3-4515-9a4b-1743f0dabce4.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 0x07c670bb2eb153c451dd3ab816bec9010fa56ff767072c09a1f13b68ae2f4fde. 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/BRBMG8300228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bdec2301d65ec725f14f1b995728b7f3bb48d9cfe638e49bf11d1904c8e74e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRBMG8300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee03db1aa0e0b88b6abf30bdc807600cd49cc377996bcee3ddbbbc423a5aa3d. 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/BRBMG8300280.
Dada Globe Orixás (Spaced Out In Paradise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0337b51f565d48d3e20129c3146e447be0142b564faeeeb7f07e1d17ab2f45a8. 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/BRBMG8300285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5ebb6bd42d0828a86e2c649efbe52814f1f014abea01bb86dcbcf349d0fc23. 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/BRBMG8300281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa000d38627d7e19f58e393684548b22f5f87ba5af01ce4383bd0865a81a09e31. 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/BRBMG8300286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638f61a46819af3c0ece0609169530b666e02cc2cf61527535a112888735f463. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRBMG8300288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f022eb5546f19b605352175da9b6a6a8006665cdfb604773d1e8b8fc9e597b6. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:24:17Z), 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/BRBMG8300284.
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
Eu Sei, Mas Eu Não Sei (I Know But I Dont Know)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ff588d0e0d70498a5e08bc221b0e78cac38c110f3f78e45a27ceb07b76b663. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/BRBMG8300283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51be9856ff90525c7dabeea5cdb1087ed9ce9b5008a7465e1a3e0e98a203515c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BRBMG8300287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d9cd1928d7c6eee778b829d0139914a34974255f63a650c6a2d63f21320077. 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/BRSGL8300137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07d314bb7ed53cad352b5c9e6d1bcb7a0dd0bbf7b305d1f8fcf0b66a6113c1a. 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/BRSGL8300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6136f2535656c18cc8ea3eae54edb10c534657b1897f1655e9bf1cbf234fbd. 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/BRSGL8300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbc1a1bf1bf0b14f95ab5e24af628e6eca8522e04a1e5bfb44eff12b1e0ff86. 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/BRSGL8300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb103730527ad31571dafd9fbe17bec659f3cc10f8626b00a3701ddff97262ac0. 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/BRSGL8300176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cadef38965f0882326c0c5e1bb7ee9816ce4617bb7fdec50b317151c5f9a10e. 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/BRSGL8300177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee950e5a3ed36f78b4e3379fb34c6dd7a88fa2baa62978e05dd460a2d52db8ba. 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/BRSGL8300178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe61e2490e85b5fccb791ec75bdc4b89648217c3f98051c77ac04ed8280c80315. 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/BRSGL8300179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3990c67dfac851f94bd13e2bcc1218e15aeedf5222099039edb0d1b219075404. 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/BRSGL8300180.
Zé Vasconcelos e a Turma do Pirlimpimpim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ca2a32be818b9043ec215f7e21ba63a53eeb7d0ae023af323e2f144e0bf6f6. 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/BRSGL8300181.