Basic Blockchain

This is a simple blockchain framework that to be a base for furth development of various consensus.

Chain

The chain module consists of block import and handles state storage. We are making the following Assumptions in this module:

• We have Block, which consists of a hash, and has a parent block. It forms a chain.
• At each Block there is a corresponding State.
• An executor that takes a block, and parent block's state. Executing it should get the current block's state.