Red Robin Gourmet Burgers, Inc., more commonly known as Red Robin Gourmet Burgers and Brews or simply Red Robin, is an American chain of casual dining restaurants founded in 1969 in Seattle, Washingto
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 0xbc5dbe4698201ef67192b20bdbde6dca21ca3ee0cda1428d7c7d14e1c4f3cc3e. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4a1f1fd-0c79-44f3-9ad1-546cf12381cf.json and https://artists.proofprofile.net/proofs/artist/e4a1f1fd-0c79-44f3-9ad1-546cf12381cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).