The Radix Team Hackathon was the first internal hackathon organised by RDX Works (then Radix DLT). It was held during the first week of April 2019, when the team gathered in the Peak District of northern England for its quarterly planning week and set aside one full day to build on the ledger, with project presentations and a team vote the following morning.
Format
Staff were split into six teams, each deliberately balanced with both technical and non-technical members so that the competition turned on ideas and execution rather than raw engineering firepower. Each team had the day to design, build and demo a working prototype on the pre-Babylon Radix ledger.
Projects
The six prototypes spanned payments, identity, tooling and games:
- POS Card System — a point-of-sale and loyalty card concept offering instantaneous settlement and minimal fees.
- DecentraSign — document verification and signing using cryptographic hashes anchored to ledger timestamps.
- Radix Network Visualizer — a tool to visualise atom activity and surface network conflicts.
- Chess on the Ledger — a game that enforced chess rules and preserved game state on-ledger, an idea revisited three years later at FooHack.
- Radix Planner — immutable polls and surveys for consensus-building.
- Command Line Interface (CLI) — the winner of the team vote.
The winning CLI enabled automated payment chains; the team demonstrated it by having a wallet automatically route a fixed percentage of every incoming payment into savings. RDX Works framed the day as evidence that building on Radix would be straightforward — a thesis later carried into public developer events such as the Scrypto Developer Event, the Scrypto DeFi Challenge, and the DApp in a Day university workshops.



