grunt-hashmap/tmp/default/hash.json

Generate a hash mapping for your assets, to burst cache

{
  "a.css": "b05dff2bb3",
  "a.js": "93ecb9a01d",
  "blank.gif": "56398e76be",
  "hash.json": "23adf193f6",
  "mod/a.js": "93ecb9a01d",
  "mod/b.js": "294e322d2b"
}