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 0x1eae5ce35eb3e2de421b0d592e3e6b8c07a586b1a0cfb0e9e1deedbeeee2b236. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34cd8fd9-b29b-407d-bb7d-ecc1ae28040a.json and https://artists.proofprofile.net/proofs/artist/34cd8fd9-b29b-407d-bb7d-ecc1ae28040a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Música Para Racha De som - Melo do Violino
MTG - VOCE NAO TEM SOM PRA TOCAR COMIGO NAO
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 0xcc7070c33bea4c9468ec2050fd10ad5dd6ef653cf9905b8b711cb76ad64b698b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/BXIV82393518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c48c872b09931001bb67e54856c3620f56fc0f081c0f2c926f713d49ba5d04. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BXIV82301969.
TOCA AS CORNETAS vs BOTA RÉ E VEM NE MIM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9b2f79f8326a5e06b5b645ef7f8877f3f7b9e568cdb75f018a3631c3a2bab4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BXIV82393060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129181975ef2a7465c133241305810a6570ca0e8742467aeba1728a9f48427f3. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:05:45Z), 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/BXIV82394041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03307dd27e5b1937e0bd2ac0e52415a421f1a1b06f6486231d9d7c608c751332. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BXIV82387872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be502322ca76f8ba12c824c6b649bbf6cff4f59acb3e1a818423ca29fe43028. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BXIV82317414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd151894d75ce8c069cb61b2aa8bf96af6f33ef3cf9301d14387d757c59d40838. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BXIV82387918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6cef121472bcca43866c30fe05ed112193e7e968982392798a532dab7cc633. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BXIV82348219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0daeafc27044a99bafaaf3f7a5040702efa2e8e3b38cfe67f9150a49a7f6549d. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:00:58Z), 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/BXIV82312835.
RACHA DE SOM - TU MEXEU COM A PESSOA ERRADA
MUSICA PARA RACHA DE SOM - ARRUMA A MALA AE
OS TENEBROSOS DA SERRA - GOL TURBO DO GUSTAVO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a3159fe3872c465125f5b788c075c44784cfecce3618afab38842765526357. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:03:29Z), 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/BXIV82421241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401b1f9d495c7735a1ed7c49e78216a852b0b80a1764207d33addba1cbc11dc3. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:08:20Z), 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/BC6M22510974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb90c58b787f92cf780fc6c887ac5eed30287155d1c866339fc720ce5792812e. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:34:29Z), 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/BX4IU2508310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f893de00cda9b88aacbd6d8a6aabb9eba453fd7d3c073250283b318fadadafb. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/BC6M22518908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a3fc914d784837f260f1ff7d1eb1a9ba67b9e23dc7ea72de4867144d5ca48f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BX4IU2517819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561d20f86da9e8ab203a0a46ed300b0186e57c80cccfb6570e0a99c80a3bbb52. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BC6M22528708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1481fd2cbbdbcae03974e53b86d2e5e1321eda5594c8967f02a661aebec1b2e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BX4IU2521486.