FactCheck

FactCheck.fun is a decentralized fact-checking marketplace that applies prediction-market mechanics to verifiable claims about real-world events that have already taken place. Where platforms like Polymarket let users bet on uncertain future outcomes, FactCheck.fun inverts the frame: users stake USDC on whether a stated fact is true or false, with AI agents and crowd-sourced evidence driving resolution. The project was founded by Prithvir Jhaveri, backed by Alliance DAO, and operates under the corporate umbrella of Loch, Inc.

Core Mechanism

FactCheck.fun lets any user create a fact market around a verifiable claim in seconds. Once a market is live, participants take opposing positions, staking USDC on whether the claim is true or false. The financial stakes create a direct incentive to locate and submit genuine evidence rather than simply form opinions.

Resolution works through an AI confidence-scoring system. Credibly neutral AI agents autonomously browse the web to locate supporting or contradicting evidence, then assign a confidence score on a 0-100 percent scale. On markets using the Central Limit Order Book (CLOB) engine, trading halts automatically when confidence reaches 90 percent; the market then enters a 24-hour resolution window using a Volume-Weighted Average Price (VWAP) with a randomly selected final block to prevent last-minute manipulation. On Dynamic Pari-Mutuel (DPM) markets, a panel of AI agents reviews submitted evidence and renders a final decision. Users who disagree may contest it only by creating a new cloned market backed by stronger evidence.

The founder describes the long-term vision as WikiLeaks plus internet capital markets: a platform where anonymous sources can post verifiable claims, have them priced by markets, and earn from crowd recognition of the truth.

Two Trading Engines

FactCheck.fun offers two distinct market structures:

Dynamic Pari-Mutuel (DPM): A shared-pool model where all participants bet into a single pot. Payouts are distributed pro-rata among winners after market close. Positions cannot be sold early or shorted. A flat 2.5 percent fee applies to purchases; referrers receive 45 percent of collected fees.

Central Limit Order Book (CLOB): A traditional order-book structure in which each outcome token is priced between 0 and 1 USDC. The CLOB enables instant settlement and the ability to enter and exit positions before resolution. Fees are 0 percent for makers and 0.5 percent for takers.

Both engines denominate positions in USDC. Gas fees are covered by the platform through embedded wallet infrastructure, so users do not need to hold native gas tokens to participate. Minimum withdrawal is 1 USDC; daily withdrawal limits default to 50,000 USDC.

Incentive Design

The fee structure distributes value to participants who grow the network. Market creators earn 5 percent of all trading fees generated in their markets. Referrers earn 45 percent of fees from users they introduce to the platform. This creates a self-reinforcing loop: creators are rewarded for sourcing compelling, high-activity topics; referrers for network growth; and traders for accurate, evidence-backed verification.

Team and Background

FactCheck.fun was founded by Prithvir Jhaveri, a Duke University graduate with prior experience as a JPMorgan analyst and AI product manager, and an alumnus of Z Fellows, a Silicon Valley pre-accelerator. The project grew out of Loch, Inc., a crypto portfolio management and on-chain data platform that had previously built a proof-of-concept fact-checking betting market under its Loch.one brand.

Alliance DAO, one of the most active crypto-focused accelerators, provided early backing. FactCheck was selected for an Alliance DAO cohort (the investment is confirmed through RootData disclosures), joining a broad portfolio of consumer and infrastructure projects across the crypto space.

Context and Differentiation

FactCheck.fun occupies a distinct niche from existing prediction markets. Polymarket and Kalshi focus on uncertain future outcomes; FactCheck.fun targets the harder problem of verifying what has already happened. Existing fact-checking organizations rely on editorial judgment, which is slow, opaque, and susceptible to institutional bias. FactCheck.fun makes verification a financial activity: correct verification earns money, creating a direct incentive for accuracy rather than speed or popularity.

The model draws comparison to Wikipedia community editing, upgraded with financial skin-in-the-game and AI-assisted evidence retrieval. When a claim is contested, the market price becomes a real-time, publicly observable signal of aggregate confidence — something editorial processes cannot produce. The platform is accessible to non-technical users: participants can sign in with an X account or email, and all gas fees are sponsored by the platform.

Note: FactCheck.fun currently operates on Base, an EVM-compatible Layer 2 built on Ethereum, with no Solana-specific programs or wallet integrations documented in the platform's website or technical documentation. The project appears under Loch, Inc. copyright. The FAQ page listed in the project source map (factcheck.fun/faq) returns a 404. The project may have been listed on Solana Compass based on early development plans that were subsequently revised.