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 0xf2030767519c276712ffab2ff544bcc3e253b110c8bf2b118608c13b0d7b0f81. 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/b00605e2-29b9-45b1-be28-68b51035160b.json and https://artists.proofprofile.net/proofs/artist/b00605e2-29b9-45b1-be28-68b51035160b.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 0xbd2c96b641877ef823d76baf81179116e928425aff956c4e054f9e86b611143a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/BRCXP2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981b926ef41e014fc7b331d7cbe50d6bec30ac797e595d8df10a62c357e2b050. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:43:37Z), 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/BRCXP2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d551efe6ef1f1978a59f73ae6e30857a496e3f55273c03ade55bc565bca01e. 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/BRCXP2000015.
Verdadeiro Sem Vergonha (feat. Kauan Furacão)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c41dba6ea41381947d8b633fca30f3d289949f8cc548e0e2602e3220033ee48. 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/BCIFI2000003.
Prefiro Ficar Sem (Ou é Você Ou é Ninguém)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69620915352117681df3304d247258ae50ea88344681ab974564a0109cc6b130. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/BCIFI2100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0955384af866fb3f974b9876cc0f02173560d92a43bea5877aa46368b94d147. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:17:52Z), 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/BCIFI2100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5daede6d380c8ceb11f749781616e0019905b70a87c1f84c9ec4e1943f061c71. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/BCIFI2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fb06fc0751e262a582a7da3c29b241c52646b6a56facaca81e25c69c962e35. 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/BCIFI2300001.