ProofDesk

A verifiable sports trading terminal & autonomous agent — powered by TxLINE real-time World Cup data, notarised on Solana.

Every tipster lies about their track record. ProofDesk is the first sports trading desk where every single decision is hash-chained and anchored on-chain — a track record that cannot be faked.

Built for the TxODDS World Cup Hackathon (Trading Tools & Agents track) on Superteam Earn.

What it does

• 📊 Live terminal — streams real-time World Cup odds and match events from the TxLINE API (SSE), renders them in a pro trading dashboard with live charts.
• 🤖 Rule-based agent — an autonomous paper-trading agent that reacts to market signals (odds momentum, red cards, late-game patterns) and takes positions without human input.
• 🧾 Proof journal — every decision the agent makes is recorded in an append-only, hash-chained journal (SHA-256), together with the exact data snapshot that triggered it. The chain can be verified by anyone at any time; a single tampered byte breaks it.
• ⏪ Replay / backtesting engine — deterministic seeded match replays: same seed, same match, same decisions. Strategies can be tested and demonstrated reproducibly.

Architecture

TxLINE API (odds/scores SSE) ──► Watcher ──► Agent (rules) ──► Proof Journal (hash chain)
                                    │             │                    │
                                    ▼             ▼                    ▼
                              WebSocket ──► Trading Terminal UI   Solana anchoring

Stack

• Backend: Node.js (Express + ws), zero-framework frontend (vanilla JS + canvas)
• Data: TxLINE by TxODDS — guest JWT + on-chain free-tier subscription (devnet)
• Chain: Solana devnet — subscription, activation signature, journal anchoring

Run

npm install
npm start          # serves on :8088 (PORT env to override)

Open the UI, press ▶ REPLAY MATCH to run a deterministic replay, watch the agent trade, then press VERIFY CHAIN to check the integrity of the proof journal.

TxLINE onboarding (devnet)

node txline-onboard.mjs    # creates wallet, subscribes on-chain (free tier), activates API token

Credentials are stored in data/ (git-ignored).

Live demo

https://proofdesk.shadrakbessanh.me