Not to belittle the work, but it is always prudent to research what the other implementations are before possibly doing duplicate work and providing that comparison along with the new work for justification of it. For example, https://en.bitcoin.it/wiki/Software#C shows picocoin (libccoin), which Github also lists as being C. What makes this or what is desired to for this to be different from the alternative(s)? It certainly seems a non-trivial matter to have completely reimplemented the necessary GNU Multiple Precision Arithmetic Library or similar dependencies such as specific compiler extensions.