nixpkgs/pkgs/data/misc/hackage/pin.json

{
  "commit": "f1cca49c3c22107b73ce7156ebc7735d7d8d250e",
  "url": "https://github.com/commercialhaskell/all-cabal-hashes/archive/f1cca49c3c22107b73ce7156ebc7735d7d8d250e.tar.gz",
  "sha256": "0bcfynix3y0w5fhrij241l6sbndfr5h20pnxwqb9sf4h2ag0zlsa",
  "msg": "Update from Hackage at 2021-12-28T00:33:48Z"
}