A Public Key Transaction Processor. Transactions processed using public keys as account identifiers. At some point this vanished from sourceforge, but I still have code and still working on it, would love more developers and testers. It is now running nicely, customers welcome. Will help you set up your own as well. Some extra features still being worked on, the more it gets used the better.
License: GPLish restricted from certain evil modifications
This project has the following developers:
New HTML Parser: The long-awaited libxml2 based HTML parser code is live. It needs further work but already handles most markup better than the original parser.
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If you're a C programmer with some spare time, take a look at the mod_virgule project page and help us with one of the tasks on the ToDo list!