ProofSight Litepaper
Anonymous Prediction Markets on Solana: A Technical Overview of Privacy-Preserving Market Intelligence
Technical Specification v1.0
Published: January 2025 | Status: Active Development
Executive Summary
ProofSight is a next-generation anonymous prediction market protocol built on Solana, leveraging zero-knowledge cryptography to enable institutional-grade traders to participate without revealing their strategies, positions, or identities. The protocol solves the fundamental transparency paradox in prediction markets by maintaining public market odds while keeping individual positions completely private.
By combining Solana's high-throughput architecture with advanced zero-knowledge proof systems, ProofSight creates a permissionless, trust-minimized environment where high-signal capital can flow freely without the risks of front-running, strategy leakage, or position surveillance.
1. The Transparency Paradox in Prediction Markets
1.1 Current Market Limitations
Traditional prediction markets, both centralized and decentralized, suffer from inherent design flaws that limit their effectiveness as information aggregation mechanisms:
Strategy Exposure
All positions are publicly visible on-chain, allowing competitors to reverse-engineer trading strategies, identify whale movements, and exploit informational advantages.
MEV Exploitation
Transparent transaction pools enable front-running, sandwich attacks, and other forms of maximal extractable value that penalize informed traders.
Institutional Hesitancy
Professional traders and institutions avoid public prediction markets due to compliance requirements, competitive disadvantages, and regulatory concerns around position disclosure.
Market Inefficiency
The absence of high-signal capital results in shallow liquidity, wide spreads, and poor price discovery, undermining the predictive accuracy of these markets.
1.2 The Need for Privacy
Financial privacy is not merely a preference—it is an economic necessity. In traditional finance, dark pools facilitate over 40% of U.S. equity trading volume precisely because institutional traders require privacy to execute large orders without market impact. Prediction markets, as mechanisms for information aggregation and risk transfer, require similar privacy guarantees to attract sophisticated participants.
ProofSight addresses this critical gap by introducing cryptographic privacy to prediction markets while maintaining the transparency necessary for trustless settlement and fair market operations.
2. ProofSight Architecture
2.1 System Overview
ProofSight's architecture is built on three fundamental layers that work in concert to provide privacy-preserving market operations:
Privacy Layer
The privacy layer implements shielded pools using zero-knowledge proof circuits that allow users to deposit funds, place bets, and withdraw winnings without revealing their wallet addresses or position details.
Technical Components:
- • Poseidon hash-based Merkle trees for commitment storage
- • Groth16 proving system for efficient proof generation
- • Nullifier mechanisms to prevent double-spending
- • Encrypted memo fields for optional metadata
Market Engine
Built natively on Solana, the market engine handles order matching, liquidity provision, and price discovery while maintaining sub-second finality and low transaction costs.
Key Features:
- • Automated market maker (AMM) with dynamic fee structures
- • Batched transaction processing for privacy amplification
- • Cross-program invocations for composability
- • Real-time odds calculation and market state updates
Settlement Layer
The settlement layer uses zero-knowledge proofs to enable anonymous claims verification, ensuring traders can withdraw winnings without linking settlements to original positions.
Settlement Process:
- • Oracle integration for outcome resolution
- • ZK proofs of position ownership without revelation
- • Time-locked withdrawals for security
- • Dispute resolution via decentralized governance
2.2 Transaction Flow
Typical User Journey:
- 1
Deposit Phase
User deposits funds into shielded pool, receiving a commitment hash stored in Merkle tree
- 2
Position Creation
User generates ZK proof of fund ownership and submits shielded position to market contract
- 3
Market Interaction
Market engine updates public odds without revealing individual position details
- 4
Settlement & Withdrawal
User proves position ownership via ZK proof and withdraws winnings to any address
3. Cryptographic Foundations
3.1 Zero-Knowledge Proof System
ProofSight employs SNARKs (Succinct Non-Interactive Arguments of Knowledge) as the foundational cryptographic primitive. Specifically, we utilize the Groth16 proving system due to its optimal proof size and verification efficiency on Solana's constrained compute environment.
Circuit Design
The core ZK circuits prove the following statements without revealing private inputs:
- • Deposit Circuit: Proves knowledge of private key corresponding to commitment without revealing the key itself
- • Position Circuit: Proves sufficient balance and valid position parameters without revealing amounts
- • Withdrawal Circuit: Proves ownership of winning position and nullifier validity without linking to original deposit
3.2 Hash Functions and Commitment Schemes
We use the Poseidon hash function, specifically designed for zero-knowledge circuits, to construct commitment schemes and Merkle trees. Poseidon offers significant advantages over traditional hash functions like SHA-256 in ZK contexts:
- Reduced constraint counts (up to 10x fewer constraints than Pedersen hashes)
- Native field arithmetic compatibility with modern proof systems
- Proven security against algebraic attacks
- Efficient implementation in both circuit and native code
3.3 Anonymity Set Construction
The security of ProofSight's privacy guarantees depends on the size and composition of the anonymity set—the group of users among whom any individual transaction cannot be distinguished. We implement several mechanisms to maximize anonymity set size:
- •Global Shielded Pool: All users across all markets share the same shielded pool, maximizing the anonymity set for deposits and withdrawals
- •Batched Transactions: Multiple transactions are aggregated and processed simultaneously, preventing timing analysis attacks
- •Decoy Mechanism: Optional decoy outputs can be generated to further obfuscate transaction graphs
4. Solana Integration
4.1 Why Solana?
The choice of Solana as the underlying blockchain infrastructure is driven by several critical technical requirements:
High Throughput
Prediction markets require rapid order execution. Solana's 400ms block times and 65,000 TPS capacity ensure minimal latency for market-sensitive operations.
Low Transaction Costs
ZK proof verification is compute-intensive. Solana's low fees ($0.00025 per transaction) make privacy-preserving operations economically viable.
Parallel Execution
Sealevel runtime enables parallel smart contract execution, allowing multiple market operations to process simultaneously without bottlenecks.
Growing Ecosystem
Solana's expanding DeFi ecosystem provides composability opportunities with lending protocols, DEXs, and oracle networks.
4.2 On-Chain Program Architecture
ProofSight's on-chain programs are written in Rust using the Anchor framework, consisting of four primary program modules:
proofsight_pool
Manages the shielded pool, Merkle tree updates, commitment storage, and nullifier tracking
proofsight_market
Handles market creation, AMM logic, liquidity provision, and public odds calculation
proofsight_verifier
Implements Groth16 proof verification logic, validating ZK proofs submitted by users
proofsight_oracle
Integrates with external oracle networks for market outcome resolution and settlement triggers
5. Privacy Guarantees and Threat Model
5.1 What ProofSight Hides
Protected Information
- ✓ User wallet addresses and identity linkages
- ✓ Individual position sizes and bet amounts
- ✓ Trading timestamps and order patterns
- ✓ Profit/loss per user and cumulative returns
- ✓ Withdrawal destinations and timing
- ✓ Correlation between deposits, positions, and withdrawals
5.2 What Remains Public
Transparent Information
- ✓ Aggregate market odds and total volume
- ✓ Total value locked in shielded pools
- ✓ Market outcomes and settlement results
- ✓ Protocol fee accrual and treasury balances
- ✓ Number of active positions (without details)
5.3 Adversarial Considerations
ProofSight's security model assumes the following adversarial capabilities:
- Network-level surveillance: Adversary can monitor all Solana network traffic and transaction patterns
- Timing analysis: Adversary attempts to correlate deposits, positions, and withdrawals based on timing
- Sybil attacks: Adversary creates multiple accounts to fragment the anonymity set
- Side-channel attacks: Adversary attempts to extract information through gas usage patterns or computational timing
Our cryptographic constructions and protocol design specifically address these attack vectors through batched transactions, uniform gas costs, and decoy mechanisms.
6. Economic Model and Fee Structure
6.1 Fee Components
ProofSight implements a sustainable fee structure designed to incentivize liquidity provision while keeping costs competitive for traders:
Trading Fee
0.5%
Charged on position size, split between LPs and protocol
Settlement Fee
0.1%
Charged on winnings to cover oracle and verification costs
Privacy Fee
FREE
No additional cost for privacy features—built into base fee
6.2 Liquidity Provision
Market makers can provide liquidity to prediction markets and earn fees from trading activity. Liquidity providers (LPs) receive 80% of trading fees, with the remaining 20% allocated to protocol development and security audits.
LP Incentives
- • Dynamic fee tiers based on market volatility and volume
- • Impermanent loss protection for long-term LPs
- • Priority market creation rights for established LPs
- • Governance participation weighted by provided liquidity
7. Security Architecture
7.1 Trusted Setup Ceremony
Groth16 proofs require a trusted setup phase to generate proving and verification keys. ProofSight will conduct a multi-party computation (MPC) ceremony involving diverse stakeholders from academia, industry, and the community. The ceremony requires only one honest participant to ensure security.
7.2 Smart Contract Security
Formal Verification
Core protocol invariants will be formally verified using tools like Certora and symbolic execution to mathematically prove correctness
Multi-Signature Controls
Protocol upgrades and parameter changes require approval from a 4-of-7 multisig with time-locks
Bug Bounty Program
Up to $500,000 in rewards for critical vulnerability disclosures through Immunefi platform
Continuous Audits
Quarterly security audits by leading firms including Trail of Bits, Kudelski Security, and Zellic
7.3 Oracle Security
Market outcome resolution relies on oracle feeds. ProofSight integrates with multiple oracle providers including Chainlink, Pyth Network, and Switchboard, with dispute resolution mechanisms for edge cases.
8. Use Cases and Market Applications
Institutional Trading
Hedge funds and proprietary trading firms can execute large-scale prediction market strategies without revealing positions to competitors or triggering market impact.
Example: A macro fund betting on Fed policy decisions can maintain strategic opacity while contributing price discovery
Corporate Hedging
Companies can hedge business risks in prediction markets without publicly signaling concerns about future performance or strategic vulnerabilities.
Example: An airline hedging fuel prices or a tech company hedging regulatory outcomes
Political Markets
High-stakes political prediction markets attract sophisticated participants who require privacy for regulatory compliance and personal security reasons.
Example: Election forecasting with participation from policy experts and political insiders
DAO Governance
DAOs can create internal prediction markets for resource allocation decisions while maintaining voting privacy and preventing strategic manipulation.
Example: Predicting success of protocol upgrades or treasury investment decisions
9. Development Roadmap
Phase 1: Foundation & Token Launch
November 2025- • Launch ProofSight Token (TGE)
- • Build community through social media and partnerships
- • Circuit design and trusted setup ceremony
- • Core smart contract development on Solana devnet
- • Initial security audits of ZK circuits
- • Testnet launch with limited markets
Phase 2: Mainnet Beta
December 2025- • Mainnet deployment with capped TVL
- • Initial market categories (politics, crypto, sports)
- • Web and mobile interface launch
- • Early adopter incentive program
- • Community governance participation
Phase 3: Full Launch
January 2026- • Remove TVL caps and scale infrastructure
- • API access for institutional integrations
- • Cross-chain bridge for multi-chain liquidity
- • Decentralized governance activation
- • Strategic partnerships with major DeFi protocols
Phase 4: Expansion
February 2026- • Advanced market types (conditional, combinatorial)
- • Mobile SDK for third-party integrations
- • Machine learning for market quality scoring
- • Research partnerships with academic institutions
- • Global community expansion and localization
10. Future Research and Open Problems
ProofSight represents the first generation of privacy-preserving prediction markets. Several areas of ongoing research will shape the protocol's evolution:
Recursive Proof Composition
Exploring recursive SNARKs to enable proof aggregation, reducing on-chain verification costs and enabling more complex market structures with nested privacy guarantees.
Cross-Chain Privacy Bridges
Developing ZK-based bridges to enable private deposits from Ethereum, Polygon, and other chains while maintaining anonymity across ecosystems.
Adaptive Anonymity Sets
Research into dynamic anonymity set construction that adapts to market conditions, balancing privacy strength with capital efficiency.
Post-Quantum Security
Investigating lattice-based and hash-based ZK proof systems resistant to quantum computing attacks, ensuring long-term protocol security.
Privacy-Preserving MEV
Exploring mechanisms to capture and redistribute MEV in privacy-preserving contexts, ensuring fair value distribution without compromising anonymity.
11. Conclusion
ProofSight represents a fundamental advancement in prediction market design, solving the transparency paradox that has limited institutional adoption and market efficiency. By leveraging zero-knowledge cryptography and Solana's high-performance infrastructure, we enable a new class of prediction markets where privacy and transparency coexist.
The protocol creates economic incentives for high-signal capital to participate in information aggregation without the strategic risks imposed by full transparency. As prediction markets mature into critical infrastructure for collective intelligence and risk management, privacy-preserving designs like ProofSight will become essential for unlocking their full potential.
Development Status
This litepaper describes ProofSight as of January 2025. The protocol is in active development and has not undergone full security audits. Specifications, parameters, and architectural decisions are subject to change as research progresses and community feedback is incorporated.
Do not use ProofSight with funds you cannot afford to lose. This litepaper is for informational purposes only and does not constitute investment advice or a solicitation to participate in any financial activity.
References
[1] Ben-Sasson et al. (2014) "Succinct Non-Interactive Zero Knowledge for a von Neumann Architecture"
[2] Groth (2016) "On the Size of Pairing-based Non-interactive Arguments"
[3] Grassi et al. (2021) "Poseidon: A New Hash Function for Zero-Knowledge Proof Systems"
[4] Yakovenko (2017) "Solana: A new architecture for a high performance blockchain"
[5] Buterin (2022) "Privacy Pools for Privacy-Preserving Smart Contracts"
[6] Hanson (2003) "Combinatorial Information Market Design"
[7] Tornado Cash (2020) "Protocol Specification and Security Analysis"
[8] Zcash (2016) "Zcash Protocol Specification"