Compare the output generated by your terminal/command prompt with the hash provided in the sha.txt file on GitHub. The original up-to-date SHA256sum is hosted here: https://github.com/pearOS-archlinux/iso/blob/main/sha.txt

Mictosoft Windows

certutil -hashfile pearOS-NiceC0re-2026.08-x86_64.iso SHA256

GNU Linux:

Apple macOS Open Terminal,