Every re-implementation, re-factoring even copy-paste introduces a risk of disagreement, but also open the chance of doing the work better, in the sense of software engineering. > On Aug 20, 2015, at 10:06, Jorge Timón wrote: > > > But the goal is not reimplementing the consensus rules but rather > extract them from Bitcoin Core so that nobody needs to re-implement > them again. My goal is different. Compatibility with Bitcoin is important as I also want to deal with Bitcoins, but it is also imperative to be able to create and serve other block chains with other rules and for those I do not want to carry on the legacy of an antique tool set and a spaghetti style. Bits of Proof uses scala (akka networking), java (api service), c++ (leveledb and now libconsensus) and I am eager to integrate secp256k1 (c) as soon as part of consensus. The choices were made because each piece appears best in what they do. Tamas Blummer