{"domain":"x402-v2-mint-echo-sha256.vercel.app","count":1,"changes":[{"captured_at":"2026-10-29T06:43:53.314042","card_hash":"bad220a9f4e804d8f23e9edad70b8a2d534434027cfa0135a2666b0a8e1d4991","previous_card_hash":null,"diff":{"skills_added":[],"skills_removed":[],"skills_changed":[],"fields_changed":[],"other_changed":true,"is_empty":false,"human_summary":"internal fields changed"}}]}