{
  "product": "TTCS RailForge",
  "edition": "Demo Build 01.02",
  "price_usd": 99,
  "historical_window_end": 2002,
  "certification": {
    "name": "Train Type & Class Standard",
    "short_name": "TTCS",
    "scope": ["identity", "era", "play balance"],
    "real_world_status": "fictional in-world game certification"
  },
  "stat_note": "Speed, pull, and armor are fictional gameplay values, not engineering specifications.",
  "cards": [
    {"name":"Flying Scotsman","class":"LNER Class A3","year":1923,"type":"steam","stats":{"speed":82,"pull":77,"armor":61}},
    {"name":"Mallard","class":"LNER Class A4","year":1938,"type":"steam","stats":{"speed":98,"pull":74,"armor":59}},
    {"name":"Big Boy","class":"UP 4000","year":1941,"type":"steam","stats":{"speed":69,"pull":99,"armor":92}},
    {"name":"0 Series Shinkansen","class":"JNR 0 Series","year":1964,"type":"high-speed","stats":{"speed":94,"pull":66,"armor":70}},
    {"name":"TGV Sud-Est","class":"SNCF TGV","year":1981,"type":"high-speed","stats":{"speed":96,"pull":70,"armor":67}},
    {"name":"ICE 3","class":"DB Class 403","year":2000,"type":"high-speed","stats":{"speed":97,"pull":73,"armor":76}},
    {"name":"GG1","class":"PRR GG1","year":1935,"type":"electric","stats":{"speed":80,"pull":84,"armor":86}},
    {"name":"Class 91","class":"British Rail Class 91","year":1988,"type":"electric","stats":{"speed":91,"pull":69,"armor":68}},
    {"name":"E44","class":"Pennsylvania E44","year":1960,"type":"electric","stats":{"speed":63,"pull":88,"armor":81}},
    {"name":"F40PH","class":"EMD F40PH","year":1976,"type":"diesel","stats":{"speed":76,"pull":79,"armor":72}},
    {"name":"Class 66","class":"EMD JT42CWR","year":1998,"type":"diesel","stats":{"speed":72,"pull":91,"armor":74}},
    {"name":"SD40-2","class":"EMD SD40-2","year":1972,"type":"diesel","stats":{"speed":67,"pull":95,"armor":82}}
  ],
  "sources": [
    {"label":"Science Museum Group — Mallard", "url":"https://collection.sciencemuseumgroup.org.uk/objects/co205732/london-north-eastern-railway-steam-locomotive-mallard"},
    {"label":"JR Central SCMAGLEV and Railway Park — Series 0", "url":"https://museum.jr-central.co.jp/sp/en/_pdf/brochure.pdf"},
    {"label":"National Museums Scotland — Flying Scotsman", "url":"https://www.nms.ac.uk/discover-catalogue/the-history-art-and-legacy-of-the-flying-scotsman"}
  ]
}