Today, we are officially introducing a proof-of-work (PoW) defense for onion services designed to prioritize verified network traffic as a deterrent against denial of service (DoS) attacks with the release of Tor 0.4.8.
A new DoS protection mechanism for Tor leveraging Proof-of-Work.
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Huh, who wouldve thought this is how PoW would actually be used
The creators, actually.
At least it’s only used when the server is getting stressed.