Developer Notes

Technical documentation and release history

Tech Stack

Blockchain

  • Sui Network
  • Move Language

Smart Contracts

  • Prediction Market
  • pxUSD Token
  • Vault (Swap)
  • Staking Pool

Frontend

  • Next.js 15
  • React 19
  • TypeScript
  • Tailwind CSS

Libraries

  • @mysten/dapp-kit
  • TradingView Widget

Infrastructure

  • Docker
  • Vercel
  • GitHub Actions

Roadmap

Phase 1 - MVP

Completed
  • Smart contract development
  • Basic UI implementation
  • Wallet connection
  • Betting & claiming flow

Phase 2 - Enhancement

In Progress
  • UI/UX improvements
  • Performance optimization
  • Additional market types
  • Leaderboard system

Phase 3 - Mainnet

Planned
  • Security audit
  • Mainnet deployment
  • Marketing campaign
  • Community building

Release History

v0.7.0pxUSD Token System
2026-01-25
  • +pxUSD platform utility token (non-monetary, for gameplay only)
  • +Vault contract for 1:1 USDC/USDT ↔ pxUSD swap
  • +Test USDT token with faucet support
  • +All predictions and staking now use pxUSD
  • +VaultModal for quick token swap
  • +TokenFaucet supporting USDC and USDT
  • +Fixed payout calculation (fee from total pool)
  • +Legal disclaimers and FAQ updates
v0.6.0Mobile UX & Staking
2026-01-17
  • +Staking Pool v2 (claim bug fix, min stake duration)
  • +Mobile bottom navigation (Trade, Yield, Ranking, More)
  • +Unified Header across all pages
  • +YieldModal for quick staking access
  • +Responsive leaderboard & yield pages
  • +Flash loan protection (1hr min stake)
v0.5.0Staking Pool
2026-01-10
  • +USDC Staking Pool smart contract
  • +Yield page with pool stats
  • +APY calculation based on fee distribution
  • +Stake/Unstake/Claim functionality
  • +70% fee distribution to stakers
v0.4.0Marketing & Branding
2025-12-27
  • +X (Twitter) marketing automation tools
  • +Brand marketing guide & ruleset
  • +Decentralized emphasis across all content
  • +Enhanced SEO with decentralized keywords
  • +PWA configuration improvements
  • +SVG logo integration
v0.3.0UX Improvements
2025-12-25
  • +Landing home page with live stats
  • +DEVNET network badge
  • +LOCKED status warning banner with animation
  • +Market creating animation
  • +Shared Footer component
  • +FAQ reward calculation example
v0.2.0USDC Integration
2025-12-25
  • +USDC token betting (replaced SUI)
  • +USDC Faucet with 1-hour cooldown
  • +Rebranded to PXM (Instant Price Prediction Market)
  • +SEO improvements (Open Graph, Twitter Cards)
  • +PWA support with app icons
  • +Shared PageHeader component
v0.1.0Initial Release
2025-12-24
  • +Sui Devnet deployment
  • +Core prediction market smart contract (Move)
  • +SUI token betting (UP/DOWN positions)
  • +Real-time TradingView chart integration
  • +MyBets with claim functionality
  • +PastMarkets history view
  • +Docker-based automation batch system
  • +Mobile-responsive design (iPhone 16 Pro Max optimized)
  • +Skeleton loading states

Contract Addresses (Testnet)

Prediction Market Package

0xa545b997a968232312c3960c82517ea0461eb485ac377070df9428b2a1b4864e

Market State Object

0x8dbb4877e54c77dba254aed66c32d6553000f10d390b62395e84509de2b84090

pxUSD Package

0xc6332c8f046fc193bd38e6407738abdf1a6f85305cdb036104f9f9e30c49f36d

pxUSD Treasury

0xd2f53f6386f9b7c5b64882991dacc816a7158614bb11489b2bf2663ad95313a9

Vault Package

0xf3e3c031cb4d2c704799c1d48850b229132a2bec13f1749a3cfb642602ed75c7

Vault State

0x90a71df9b50a6649b8509fe0b7b702d138714cbbbf33808085b0d4953d5dc143

Staking Pool Package

0x5a4e8bfb6a1eed7285ffd0696c4df22c0624fcb1564cff6dbfe3a19fc1dc2a1f

Staking Pool State

0xe5ac59c80baff3d0c72259b6b91e83db8096eff63d86a63ef41f09e71201f28a

Open Source

View the source code and contribute on GitHub

leopard627/xinstant