is a Japanese manga series written and illustrated by Fusanosuke Inariya. It is licensed in English by Digital Manga Publishing, but was previously licensed by DramaQueen. Digital Manga Publishing re
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 0xe3a6fdf313cc053b17c999e369f81573686677fd031307b71fb3c0e2a85a8062. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25e6bb1c-942b-4d5f-9632-657001d5cb4c.json and https://artists.proofprofile.net/proofs/artist/25e6bb1c-942b-4d5f-9632-657001d5cb4c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).