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 0x69a764dbcf9686da6fd7f4f7214de5864115a4c2397a547937e8bef2966ccbfa. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6b540aa-ff19-4cf0-94d7-ea2bfe8bc3e3.json and https://artists.proofprofile.net/proofs/artist/b6b540aa-ff19-4cf0-94d7-ea2bfe8bc3e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ocean Temple Neptune and the Forgotten Witch
海底神殿ネプチューンと忘れられた魔女
Forest Elves and the Treasure Aquamarine
赤髪のバルバロスと伝説の航海日誌
Red-haired Barbaros and the Legendary Logbook
Blue-Eyes White Wolf and the Queen Knight