ChainSafe Systems
Background
Based in Toronto, ChainSafe Systems is a blockchain research and development firm offering consulting services to a number of different ethereum-based projects including Bunz, Shyft, Aion, and Polymath.
Implementation Details
The team is currently building an Ethereum 2.0 client written in JavaScript/TypeScript called Lodestar. In addition to the beacon chain client, the team is also working on Simple Serialize (SSZ) in JS, Fixed Sized BigNumbers in TS, and BLS Signatures and Signature Aggregation in JS.