{"copyright_id":"0xa97456088055de7b7825ed282caedb35300e4b53d8afa03aef89e5dae452f71a","name":"Sirapassara Sintrakarnphol","registered_at":"2026-06-20T19:24:22Z","symbol":"NIM1693774","token_address":"0xacbfb214e6b6de903d2eba4e38ce15bcfac458bc","type":"artist","uuid":"c1e26320-ac60-44eb-b8ff-e85ff5a8f2bd"}
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 0xa97456088055de7b7825ed282caedb35300e4b53d8afa03aef89e5dae452f71a. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1e26320-ac60-44eb-b8ff-e85ff5a8f2bd.json and https://artists.proofprofile.net/proofs/artist/c1e26320-ac60-44eb-b8ff-e85ff5a8f2bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).