เก่ง ธชย Feat. ปราง ปรางทิพย์
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 0xc5b0a63e26dc0a00af398a977f31b8ff259bc8ca6ba0390e560e2144a4f9c0bc. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f80ab402-63b1-45f3-bf0c-9cf5a3724210.json and https://artists.proofprofile.net/proofs/artist/f80ab402-63b1-45f3-bf0c-9cf5a3724210.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).