is a light novel series, that has also been made into manga and anime series by Ryo Hoshino and illustrated by Ariko Ito. The anime series goes under the name . According to the New York Comic Conven
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 0x5b7a2bd13ce465e0c9c52f79d44948f7f986ae2cda1dbb8d4dd13dab902a0cd3. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d462dd8b-bd93-4682-90a6-9371e567aac5.json and https://artists.proofprofile.net/proofs/artist/d462dd8b-bd93-4682-90a6-9371e567aac5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).