NOTICE: It's an experiment and a very early draft! Please, feel free to submit your ideas or pull requests.

Here is the White Paper.

The license is MIT.

How to Use

Install Ruby 2.2+, Rubygems, and then run:

$ sudo apt-get install ruby-dev rubygems zlib1g-dev
$ gem install zold

Then, either run it as a node:

$ zold node

For more options and commands just run:

$ zold --help

You will need PGP keys in ~/.ssh. To generate them (if you don't have them yet):

$ ssh-keygen -t rsa -b 4096

First, create a wallet (instead of 5f96e731e48ae21f there will be your person wallet number, use it everywhere below):

$ zold create
5f96e731e48ae21f

Then, give its number to your friend, who is going to pay you. When the payment is sent, ask him or her for the number of the wallet the payment has been sent from and then fetch that wallet (let's say it is 5555444433332222):

$ zold fetch 5555444433332222
5.00 ZLD added to 5f96e731e48ae21f: To my friend!

Now, you have the money in your wallet!

Next, you can pay your friend back:

$ zold pay 5f96e731e48ae21f 5555444433332222 2.50 'Here is a refund'
-2.50 ZLD added to 5f96e731e48ae21f: Here is a refund

Finally, you have to push your wallet to the network so that your friend knows about the payment:

$ zold push 5f96e731e48ae21f

That's it.

You also can contribute to Zold by running a node on your server. In order to do that just run:

$ zold node --invoice=5f96e731e48ae21f

Grateful users of the system will pay "taxes" to your wallet for processing of their transactions.