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Old November 27th, 2008
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arne_bab arne_bab is offline
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Join Date: May 31st, 2002
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If you want to have a look at a really powerful way to fight spam, you can check the (discontinued) Credence project.

They used decentral voting and object reputation for shared files and implemented that in a LimeWire, but LimeWire never added their code to the mainline, so the project eventually died.

When I tested it back then, it worked quite well, but it suffered from the problem that it needed to download the initial client ID for signing object votes from a server (to avoid people running a really huge number of instances to kill the algorithm).

They were working on moving from central key generation to decentralized crypto-puzzles short before they stopped updating.

The project is still available at Credence: Thwarting P2P Pollution , if you'd like to give it a look.
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