{"copyright_id":"0x02e2c6b8ff733ad5ae275a345ad435fb03fc5fb536fd5b4c6820ff7efb2aca8e","name":"Emiliano Mastrolia","registered_at":"2026-06-20T21:45:23Z","symbol":"NIM1723994","token_address":"0xb7aeb58eb6fe7c91eecfadb25a474affead3b486","type":"artist","uuid":"c7ddceb8-273c-4117-b9a5-87946a004bd1"}
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 0x02e2c6b8ff733ad5ae275a345ad435fb03fc5fb536fd5b4c6820ff7efb2aca8e. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7ddceb8-273c-4117-b9a5-87946a004bd1.json and https://artists.proofprofile.net/proofs/artist/c7ddceb8-273c-4117-b9a5-87946a004bd1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).