Kaiju (from , ), or giant movie monster, are terms used in film and media for monsters, and the like, of enormous size, mainly belonging to a designated genre, known as kaiju movies, or giant monster
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 0x2dc8376b6ae17861aef79d74397dab873de49adfa1dc7e13d0af9d0cf41c51f9. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0a7f9af-df41-41f6-bf85-0da8d291d594.json and https://artists.proofprofile.net/proofs/artist/d0a7f9af-df41-41f6-bf85-0da8d291d594.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).