Signature verification before image sideload

Using /e/OS Setup
1

For the lineage and mircoG images, the build authenticity can be verified.
https://wiki.lineageos.org/verifying-builds

I didn’t find such a function for e.os, or maybe I overlooked it?

2

There are |MD5| and |SHA256| available along the builds.ZIP
in the per device download folder.

as example :
https://images.ecloud.global/stable/FP4/

3

I saw the hash values, but what i meant is signature verification. It is a image verification with the public rsa key. I’ve been running the signature check on all downloaded system images for some time, including for example ubuntu images.