Analysis updated 2026-05-18
Predict live football match statistics in five minute windows and earn a proportional payout
Build or study a blockchain based prediction market that pays out by closeness rather than win or lose
Explore how Merkle proof oracles like TxLINE verify real world sports data on chain
Study a full stack Solana project with on chain programs, a backend, and a frontend
| marshal-am/flash11 | 0xkinno/astraea | 0xkinno/halcyon | |
|---|---|---|---|
| Stars | 0 | 0 | 0 |
| Language | TypeScript | TypeScript | TypeScript |
| Setup difficulty | hard | hard | hard |
| Complexity | — | 4/5 | 4/5 |
| Audience | developer | developer | developer |
Figures from each repo's GitHub metadata at analysis time.
Requires understanding Solana Anchor programs and devnet deployment to run locally.
FlashXI is a live football prediction market built on the Solana blockchain. Instead of betting on who wins a match, every five minutes during a game a new prediction window opens with one question: what will the running match stats look like by the end of this window. Players submit a guess made of six numbers describing those stats, put stake money in USDC into a shared pool, and get paid a share of that pool based on how close their guess was to what actually happened, rather than simply winning or losing a yes or no bet. The project introduces its own building block for this, called Express Micro Markets, and settles the real match outcome using a system called TxLINE, which provides cryptographic Merkle proofs so the result used to pay out players can be verified rather than trusted blindly. The core pieces run as Solana programs, currently deployed on Solana's public test network called devnet: a market program, a vault that holds staked funds, an oracle adapter that connects to TxLINE, and a treasury program. The codebase is organized into the Solana programs themselves, a backend that handles authentication, live data streaming, fetching match data and proofs, running demo sessions, and simulating bot players, plus a frontend web application. Each major folder has its own README with more detail. The project includes a live demo app, a demo video, and a pitch deck, suggesting it is an early stage, hackathon style project aimed at people interested in blockchain based prediction markets and sports betting alternatives rather than a finished commercial product. The README does not state a license. The full README is longer than what was shown.
A Solana blockchain prediction market for live football where players guess match stats every five minutes and get paid based on how close they were.
Mainly TypeScript. The stack also includes TypeScript, Solana, Anchor.
Setup difficulty is rated hard, with roughly 1day+ to a first successful run.
Mainly developer.
This repo across BitVibe Labs
Verify against the repo before relying on details.