iPredict

Decentralized prediction markets on Arbitrum. Bet on outcomes. Earn rewards. Shape the future.

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LIVE DEMO
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https://i-predict.vercel.app/

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CONTRACT ADDRESS (Arbitrum Sepolia)
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0x67d5E39785F621B54F721b5514AF1D9A7F738945

View on Arbiscan: https://sepolia.arbiscan.io/address/0x67d5e39785f621b54f721b5514af1d9a7f738945

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WHAT IS iPREDICT?
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iPredict lets anyone create and participate in prediction markets—from crypto price movements to real-world events. Users stake ETH on YES/NO outcomes, and winners split the pool proportionally.

Built on Arbitrum for fast, low-cost transactions, iPredict demonstrates how prediction markets can drive community governance and collective intelligence at scale.

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THE PROBLEM
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Traditional prediction markets are either:
• Centralized (custody risk, censorship, geographic restrictions)
• Built on congested L1s with high fees that price out everyday users

Meanwhile, valuable collective intelligence—what crowds actually believe will happen—remains locked behind paywalls or scattered across unreliable polls.

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OUR SOLUTION
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iPredict brings permissionless prediction markets to Arbitrum:

• Anyone can create markets — No gatekeepers. Propose a question, set a deadline, let the crowd decide.
• Skin in the game — Stake ETH on YES/NO outcomes. Winners share the losing pool proportionally.
• Transparent & trustless — All logic on-chain. No custody, no counterparty risk.
• Governance-ready — Communities can use prediction markets to gauge sentiment before proposals.

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WHY ARBITRUM?
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• Fast & Cheap — Low latency, minimal transaction costs
• EVM Compatible — Deploy existing Solidity contracts seamlessly
• Ethereum Security — Inherits security from Ethereum L1
• Mass Adoption — Large ecosystem with familiar tooling

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KEY FEATURES
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• Create Markets: Anyone can propose prediction questions
• Place Bets: Stake ETH on YES or NO outcomes
• Win Rewards: Winners split the losing pool proportionally
• Admin Controls: Market resolution and platform management
• Real-time Updates: Live odds and pool tracking

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TECH STACK
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Smart Contracts: Solidity, Foundry
Frontend: Next.js 14, TypeScript, TailwindCSS
Web3: wagmi v2, viem, RainbowKit
Network: Arbitrum Sepolia (Testnet)

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HOW IT WORKS
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1. Create a Market: Define a yes/no question with a deadline
2. Place Bets: Users stake ETH on their predicted outcome
3. Wait for Resolution: Admin resolves market after deadline
4. Claim Winnings: Winners claim their proportional share

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SMART CONTRACT DETAILS
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Network: Arbitrum Sepolia
Chain ID: 421614
Contract: 0x67d5E39785F621B54F721b5514AF1D9A7F738945
Platform Fee: 2%
Verified: Yes

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LINKS
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• Live App: https://i-predict.vercel.app/
• Contract: https://sepolia.arbiscan.io/address/0x67d5e39785f621b54f721b5514af1d9a7f738945