Check a download

Every file here has a SHA-256 checksum. If the checksum of what you downloaded matches the one we list, you have the exact file we published.

How to check a file

Find the file’s SHA-256 in the download center, then run one of these in the folder you downloaded it to. Here’s the command for The_Doctrine_of_Life_v3.9.pdf:

Windows (PowerShell)

Get-FileHash .\The_Doctrine_of_Life_v3.9.pdf -Algorithm SHA256

macOS

shasum -a 256 The_Doctrine_of_Life_v3.9.pdf

Linux

sha256sum The_Doctrine_of_Life_v3.9.pdf

The long string it prints should match the one we list, exactly. For that file, it should be:

469a82f57a8a2b76e51a452889584ead8cc4416b88afad8b41f36c31803a16a6

If it doesn’t match

Don’t open or run the file. Download it again from the download center, and if it still doesn’t match, tell us.