release version 0.0.2

This is a light demo for

• A general Idea of how Blocks, Chain, Mining, Nodes, Transaction work with each others.
• How to do them in Node
• How to resolve basic conflicts in blockchain
• How to use sha256 to do PoW(Proof of Work)
• Not a demo for
  • signatures
  • address
  • production setup
  • making you a blockchain expert

routes that work

GET /blockchain // see the link-list itself
GET /blockchain/mine // find the next special hash
POST /blockchain/transactions // add new data to the chain 
GET /blockchain/nodes/resolve // fetch the longest chain
POST /blockchain/nodes/register // add nodes urls
GET /blockchain/nodes // get a list of all nodes

To-Dos

• use socket instead of http, to broadcast state
• implement signature, public key, private key, user address system
• proof of work and rewarding system
• new PoW algorithm
• location based sharding?
• hide IPs / make it private!?
• PoS, or other dBFT methods
• dockernized, easy to run a node
• interactive wrappers, helper libraries(python, golang, java)...