Nobu Hospitality, LLC is an American company founded by Nobu Matsuhisa, Robert De Niro, and Meir Teper in partnerships with Drew Nieporent as an operator with Myriad Restaurant Group. History In 19
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 0xb28598b9eec4750a82d4eddd51ddfe564d619dd106d0efaa115b77cc267762dc. Chain 2 (Bitcoin): anchored in block 953851 (2026-06-15T23:06:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/015cf695-7fca-44b3-9b41-93839b5bec86.json and https://artists.proofprofile.net/proofs/artist/015cf695-7fca-44b3-9b41-93839b5bec86.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).