user3857: With Bitcoins being that much worth currently, I came to the conclusion of using a unique old computer just for this "use case".
I would like to run Ubuntu with bitcoin-qt (from PPA), but now the paranoia kicks in: what if the client is corrupted? I know that I can check against the MD5/SHsomething, but who guarantees that the client itself is not corrupted due to an error/mistake or even intentionally?
It is said that with PPA, nobody guaratees that the software itself is not corrupted, so I am unsure about transfering quite a lot of money to some software I don't know anything about.

user5406: You can instead directly install from the source code. It is available on the project site along with release signatures.

3857: <p>With Bitcoins being that much worth currently, I came to the conclusion of using a unique old computer just for this "use case".</p>

<p>I would like to run Ubuntu with bitcoin-qt (from PPA), but now the paranoia kicks in: what if the client is corrupted? I know that I can check against the MD5/SHsomething, but who guarantees that the client itself is not corrupted due to an error/mistake or even intentionally?</p>

<p>It is said that with PPA, nobody guaratees that the software itself is not corrupted, so I am unsure about transfering quite a lot of money to some software I don't know anything about.</p>
 5406: <p>You can instead directly install from the source code. It is available on the <a href="https://bitcoin.org/en/download" rel="nofollow">project site</a> along with release signatures.</p>
