TrueChain fPOW

prototype for TrueChain fruit chain consensus

Refer to: https://eprint.iacr.org/2016/916.pdf

Building the source

Building geth requires both a Go (version 1.7 or later) and a C compiler. You can install them using your favourite package manager. Once the dependencies are installed, run

make geth

or, to build the full suite of utilities:

make all

The execuable command geth will be found in the cmd directory.

Running geth

Defining the private genesis state

First, you'll need to create the genesis state of your networks, which all nodes need to be aware of and agree upon. This consists of a small JSON file (e.g. call it genesis.json):

{
  "config": {
        "chainId": 10,
        "homesteadBlock": 0,
        "eip155Block": 0,
        "eip158Block": 0
    },
  "alloc"      : {
	  "0x970e8128ab834e8eac17ab8e3812f010678cf791" : { "balance" : "90000000000000000000000"},
	  "0x68f2517b6c597ede0ae7c0559cdd4a84fd08c928" : { "balance" : "10000000000000000000000"}
	  },
  "coinbase"   : "0x0000000000000000000000000000000000000000",
  "difficulty" : "0x200",
  "extraData"  : "",
  "gasLimit"   : "0x2fefd8",
  "nonce"      : "0x0000000000000042",
  "mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
  "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
  "timestamp"  : "0x00"
}

With the genesis state defined in the above JSON file, you'll need to initialize every Geth node with it prior to starting it up to ensure all blockchain parameters are correctly set:

$ geth init path/to/genesis.json

Running a private miner

To start a Geth instance for fpow, run it with these flags:

$ geth --nodiscover --mine --etherbase=0x8a45d70f096d3581866ed27a5017a4eeec0db2a1

Which will start sending transactions periodly to this node and mining fruits and blocks.