{"verified":true,"expired":false,"issuer":"Rootz (demonstration)","demo":true,"offer":{"id":4,"kroger_id":"0068954408301","brand":"Fage","title":"Save $0.50 on Greek yogurt","value":"$0.50","terms":"GLP-1 friendly: high protein, low carb. Demonstration offer — not a redeemable coupon.","expiry":"2026-12-31"},"signature":"iRXbop67O69MYmTlyynsRRRlRsMyG6Ou3uh14mQ96x+GPzpmf8EptS27x1m+6fkZ6nCU9t3IqJkKAVKQQs5gAw==","alg":"Ed25519","key_id":"ee85bc1e850b4b11","public_key_url":"https://food.rootz.global/.well-known/food-intel-signing.json","note":"Ed25519 over the canonical offer; verify independently against the public key. demo=true means a sample, not a redeemable coupon."}