Authorization required: sitemap.xml
Verification word: parlor

Approve on your phone -- open or scan this on a device with your passkey:
  https://auth.ck1.me/a/eyJhbGciOiJIUzI1NiJ9.eyJyZXMiOnsidHlwZSI6Im9iamVjdCIsImlkIjoic2l0ZW1hcC54bWwifSwid29yZCI6InBhcmxvciIsImp0aSI6Ijg5MDRlMDhhNGQ4YjQxNGE4MzI5NjM2ZjI4NjNkZjY5IiwiaXNzIjoic2VydmVzLmNrMS5tZSIsImF1ZCI6ImF1dGguY2sxLm1lIiwiaWF0IjoxNzg1NDUxOTA3LCJleHAiOjE3ODU0NTIyMDd9.gD1fc8NK3sy2XqTTc8nR2TSQT9IQZnwCPF6mIBNNc4w

(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.eyJyZXMiOnsidHlwZSI6Im9iamVjdCIsImlkIjoic2l0ZW1hcC54bWwifSwid29yZCI6InBhcmxvciIsImp0aSI6Ijg5MDRlMDhhNGQ4YjQxNGE4MzI5NjM2ZjI4NjNkZjY5IiwiaXNzIjoic2VydmVzLmNrMS5tZSIsImF1ZCI6ImF1dGguY2sxLm1lIiwiaWF0IjoxNzg1NDUxOTA3LCJleHAiOjE3ODU0NTIyMDd9.gD1fc8NK3sy2XqTTc8nR2TSQT9IQZnwCPF6mIBNNc4w' -o 'sitemap.xml'