Authorization required: sitemap.xml
Verification word: enamel

Approve on your phone -- open or scan this on a device with your passkey:
  https://auth.ck1.me/a/eyJhbGciOiJIUzI1NiJ9.eyJyZXMiOnsidHlwZSI6Im9iamVjdCIsImlkIjoic2l0ZW1hcC54bWwifSwid29yZCI6ImVuYW1lbCIsImp0aSI6ImU4YTBmNzhkYzljMTRlZWU4NjRmMjZjNzAxYjg3NWIzIiwiaXNzIjoic2VydmVzLmNrMS5tZSIsImF1ZCI6ImF1dGguY2sxLm1lIiwiaWF0IjoxNzgzNzE2ODg4LCJleHAiOjE3ODM3MTcxODh9.07zTb1LnFvUwYYRjgM3skt7Txk0P5g10QB65JdEuo9A

(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.eyJyZXMiOnsidHlwZSI6Im9iamVjdCIsImlkIjoic2l0ZW1hcC54bWwifSwid29yZCI6ImVuYW1lbCIsImp0aSI6ImU4YTBmNzhkYzljMTRlZWU4NjRmMjZjNzAxYjg3NWIzIiwiaXNzIjoic2VydmVzLmNrMS5tZSIsImF1ZCI6ImF1dGguY2sxLm1lIiwiaWF0IjoxNzgzNzE2ODg4LCJleHAiOjE3ODM3MTcxODh9.07zTb1LnFvUwYYRjgM3skt7Txk0P5g10QB65JdEuo9A' -o 'sitemap.xml'