{"copyright_id":"0xaa2cdfce9edbf2ae0abda6a90b968ad7c3e0f96a6b7d73a01f2be65fda796ff2","name":"CALI SEMIPRO","registered_at":"2026-06-17T02:02:15Z","symbol":"NIM1246225","token_address":"0x652ecbff9d00c9be2f6e4d5a16ab82b9158fbea8","type":"artist","uuid":"683a8baf-ef84-413a-ab36-ba1c62101ccd"}
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 0xaa2cdfce9edbf2ae0abda6a90b968ad7c3e0f96a6b7d73a01f2be65fda796ff2. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/683a8baf-ef84-413a-ab36-ba1c62101ccd.json and https://artists.proofprofile.net/proofs/artist/683a8baf-ef84-413a-ab36-ba1c62101ccd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).