is a 1985 Japanese comedy film written and directed by Juzo Itami, and starring Tsutomu Yamazaki, Nobuko Miyamoto, Kōji Yakusho, and Ken Watanabe. The publicity for the film calls it the first "ramen
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 0x1ad9d3da05de6b41f88efbd571689d52edac522aa5e6d22721d25a2d8ac47639. Chain 2 (Bitcoin): anchored in block 953962 (2026-06-16T15:03:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/280fec64-15e5-45e9-83ae-d6a529a43239.json and https://artists.proofprofile.net/proofs/artist/280fec64-15e5-45e9-83ae-d6a529a43239.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).