Creditcoin 1.x

This is the first implementation of Creditcoin using the Hyperledger Sawtooth development framework, initially version 1.0.5 and later switching to version 1.2 of the framework. Creditcoin 1.x is a proof-of-work blockchain. An important side note is that Sawtooth itself was originally written in Python, and in later versions, some of its components were rewritten in Rust. A Sawtooth node represents a collection of multiple components as shown in Figure 4-1.