You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.

proofctl
0.1.8

This version was deleted from PyPI around 2026-06-19. Installing fails with:
$ pip3 install proofctl==0.1.8 ERROR: Could not find a version that satisfies the requirement proofctl==0.1.8
View other deleted versions of proofctl

Install through StableBuild

You can install this package from StableBuild's PyPI snapshots from before the version was deleted:
pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2026-06-18/ \ proofctl==0.1.8
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip:
proofctl-0.1.8-py3-none-any.whl (113.6KB)
proofctl-0.1.8.tar.gz (145.6KB)