Authorization required: sitemap.xml
Verification word: dullness

Approve on your phone -- open or scan this on a device with your passkey:
  https://auth.ck1.me/a/eyJhbGciOiJIUzI1NiJ9.eyJyZXMiOnsidHlwZSI6Im9iamVjdCIsImlkIjoic2l0ZW1hcC54bWwifSwid29yZCI6ImR1bGxuZXNzIiwianRpIjoiM2NhZGQxNjdjYTA2NDMzNjg2MTRkMzc5OTUzOWVmNDUiLCJpc3MiOiJzZXJ2ZXMuY2sxLm1lIiwiYXVkIjoiYXV0aC5jazEubWUiLCJpYXQiOjE3ODI3NzMwOTMsImV4cCI6MTc4Mjc3MzM5M30.oFC7LyoZsCKEC6zg25i_Tao_K57t4sl0n6OfIuiB-qc

(No browser on this box? Cmd-click that link to open it on your laptop;
 it shows a QR you can scan with your phone.)

Then fetch the file -- this command waits until you approve:
  curl -fL 'https://serves.ck1.me/sitemap.xml?grant=eyJhbGciOiJIUzI1NiJ9.eyJyZXMiOnsidHlwZSI6Im9iamVjdCIsImlkIjoic2l0ZW1hcC54bWwifSwid29yZCI6ImR1bGxuZXNzIiwianRpIjoiM2NhZGQxNjdjYTA2NDMzNjg2MTRkMzc5OTUzOWVmNDUiLCJpc3MiOiJzZXJ2ZXMuY2sxLm1lIiwiYXVkIjoiYXV0aC5jazEubWUiLCJpYXQiOjE3ODI3NzMwOTMsImV4cCI6MTc4Mjc3MzM5M30.oFC7LyoZsCKEC6zg25i_Tao_K57t4sl0n6OfIuiB-qc' -o 'sitemap.xml'