Trusted Publishing gives provenance of which repo the files were uploaded from, the workflow file, and commit. For example:
https://pypi.org/project/urllib3/2.3.0/#urllib3-2.3.0-py3-none-any.whl
Downstream verification for installers such as pip is the next step:
https://blog.trailofbits.com/2024/11/14/attestations-a-new-generation-of-signatures-on-pypi/




