andersk commented on issue #41678:
URL: https://github.com/apache/arrow/issues/41678#issuecomment-2113519633

   That doesn’t solve the issue. There are 16 distinct keys in that new keyring 
file, 5 of which are expired, so presumably it’s changing quite frequently. 
Like I said, downloading a new copies of the keyring every time it changes 
defeats the whole point of verifying PGP signatures, because an attacker who 
can tamper with the binary can also tamper with the keyring.
   
   Zulip needs a stable root of trust for our external dependencies that can be 
baked into our release tarball. Ideally we would like it to be the one that’s 
already baked into our existing release tarball, so that our existing release 
tarball isn’t broken.


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