Galbraith IV, Stuart (1994). Japanese Fantasy, Science Fiction and Horror Films. McFarland & Company. is a 1968 Japanese jidaigeki horror film directed by Kaneto Shindō, and an adaptation of a superna
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 0xc3e6c161569e76d6c6d720ab330462122b7eddc652f43d493a260bc48e1a1174. 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/fb500722-9508-471f-839a-8d9eb3924d2b.json and https://artists.proofprofile.net/proofs/artist/fb500722-9508-471f-839a-8d9eb3924d2b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).