user323: Is it possible to mine Bitcoins at a pool through the TOR network? If so, how would one configure the appropriate tools?

user70126: I've written an application to accomplish this on my own time. 
Hoping this helps you and anyone else who comes across this answer.
https://github.com/Elycin/PoolOverSocks5
The test results that I've used over tor and the stratum protocol, I seem to have an average latency of 610ms to a Monero Pool such as pool.usxmrpool.com. This may vary for other cryptocurrencies, but using Tor there is no stales in 4 hours of testing.
Here's a image of it all working in my test environment:

Cheers.

user1351: You could mine over TOR, but I would expect you would get much higher stales & downtime due to the high latencies of the TOR network.
You can use the application ProxyChains to force any application on your computer to use a proxy (or a combination of proxies), simply add a new proxy to ProxyChains, 127.0.0.1 as IP and your TOR software's port as port, and then setup Proxychains to force your mining application to use that proxy.
http://proxychains.sourceforge.net/

user942: Eligius has a hidden service for Tor mining.

323: <p>Is it possible to mine Bitcoins at a pool through the TOR network? If so, how would one configure the appropriate tools?</p>
 70126: <p>I've written an application to accomplish this on my own time. 
Hoping this helps you and anyone else who comes across this answer.</p>

<p><a href="https://github.com/Elycin/PoolOverSocks5" rel="nofollow noreferrer">https://github.com/Elycin/PoolOverSocks5</a></p>

<p>The test results that I've used over tor and the stratum protocol, I seem to have an average latency of 610ms to a Monero Pool such as <code>pool.usxmrpool.com</code>. This may vary for other cryptocurrencies, but using Tor there is no stales in 4 hours of testing.</p>

<p>Here's a image of it all working in my test environment:
<a href="https://i.stack.imgur.com/F39Kn.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/F39Kn.png" alt="enter image description here"></a></p>

<p>Cheers.</p>
 1351: <p>You could mine over TOR, but I would expect you would get much higher stales &amp; downtime due to the high latencies of the TOR network.</p>

<p>You can use the application ProxyChains to force any application on your computer to use a proxy (or a combination of proxies), simply add a new proxy to ProxyChains, 127.0.0.1 as IP and your TOR software's port as port, and then setup Proxychains to force your mining application to use that proxy.</p>

<p><a href="http://proxychains.sourceforge.net/" rel="nofollow">http://proxychains.sourceforge.net/</a></p>
 942: <p><a href="http://eligius.st/wiki/index.php/FAQ#Can_I_mine_over_Tor.3F" rel="nofollow">Eligius has a hidden service for Tor mining.</a></p>
