oddcoin

Learning Clojure and blockchain!

Based on "Rolling your Own Blockchain in Haskell" by Michael Burge (http://www.michaelburge.us/2017/08/17/rolling-your-own-blockchain.html)

Usage

Run the jar to create a blockchain with a length of 20

$ java -jar oddcoin-0.1.0-standalone.jar [args]

Examples

This example creates a blockchain with two blocks. We can see that only one of the transactions were actually added to the block because only the miner of the first block has been awarded oddcoins!

(def blockchain (mine-on [(->transaction "oddsor" "guy2" 100), (->transaction "guy3" "guy4" 50)]
                         "oddsor"
                         (mine-on [] "oddsor" [[]])))
=> #'oddcoin.core/blockchain
blockchain
=>
({:block-header {:miner "oddsor",
                 :parent-hash "17c0940dda03952375a667f98ab90ead6e5408d9",
                 :nonce 0,
                 :mined-at #object[java.time.Instant 0x65d74d98 "2018-04-06T22:11:00.890Z"]},
  :block (#oddcoin.core.transaction{:from "oddsor", :to "guy2", :amount 100})}
 {:block-header {:miner "oddsor",
                 :parent-hash "addbc1b3216d2fdb33393ffbbbb6adff83d59e14",
                 :nonce 0,
                 :mined-at #object[java.time.Instant 0x5720af10 "2018-04-06T22:11:00.888Z"]},
  :block ()}
 [])

To see the account balances in the chain:

(balances blockchain)
=> {"oddsor" 1900, "guy2" 100}