simplified btc in rust

a POW+UTXO blockchain demo, just for learning

• align with btc's address derivation & signature algorithms
• only support P2PKH now

concurrency by multi-threading, while node communication by TCP protocol

steps

• Create wallet:

  cargo run createwallet

• Create blockchain(address will get reward from coinbase tx of genesis block):

  cargo run create <address>
  

• send coins (if -m is specified, the block will be mined immediately in the same node):

  cargo run send <from> <to> <amount> -m