{"copyright_id":"0x4e7cb0b5d9beea54e372880dca518014f4f1ed29ee91def856e1f2ccbd26ffc6","name":"Julinho Marassi e Gutemberg","registered_at":"2026-06-15T00:48:28Z","symbol":"NIM0629566","token_address":"0x8e1f7a1bcfe85ad1b636afea00a66804cf86dcb5","type":"artist","uuid":"c17cbbeb-f75f-4de6-a607-7ba1bb579ce3"}
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 0x4e7cb0b5d9beea54e372880dca518014f4f1ed29ee91def856e1f2ccbd26ffc6. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c17cbbeb-f75f-4de6-a607-7ba1bb579ce3.json and https://artists.proofprofile.net/proofs/artist/c17cbbeb-f75f-4de6-a607-7ba1bb579ce3.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 0xfd6f3e3f817b19a74a42bae93b34fd70848547800a603db36cc357685b794151. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:42:27Z), 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/USCGJ1747736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fba3e86f48a8c195eb55aed10c9d29ca1fc496b60322645a7f9b158e6a0c5f. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T14:07:48Z), 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/USCGJ1747748.