Introduction

To really get an understanding of how one can use the avalanche-types library to build a Rust-based VM, we will look at TimeStampVM, a basic VM which utilizes the avalanche-types library.

Idea of TimestampVM

In contrast to complex VMs like the EVM which provide a general-purpose computing environment, TimestampVM is much, much simpler. In fact, we can describe the goal of TimestampVM in two bullet points:

• To store the timestamp when each block was appended to the blockchain
• To store arbitrary payloads of data (within each block)

Even though the above seems quite simple, this still requires us to define and build out an architecture to support such functionalities. In this case study, we will look at the following pieces of the architecture that define TimestampVM:

• State
• Blocks
• API
• The VM itself