PRIVACY HACK
Build the future of privacy on Solana. Compete for prizes while creating privacy-preserving applications and tools.
tracks: [private_payments, privacy_tooling, open_track]
total prizes: $100,000+
Privacy is normal
Join developers from around the world building privacy-preserving applications and tooling on Solana. Connect with the community, find teammates, and compete for prizes.
Hackathon Timeline
Hackathon Tracks
Compete in one of three categories.
Private payments
Build innovative solutions for confidential or private transfers on Solana.
Privacy tooling
Develop tools and infrastructure that make it easier for developers to build with privacy on Solana.
Open track - Pool
Build whatever you want with privacy on Solana. Supported by Light Protocol. POOL PRIZE — Judged by Solana Foundation &
Sponsor Bounties
Additional prizes from our ecosystem partners
Sponsors are responsible for prize distribution. These bounties are offered independently by ecosystem partners.
Build with Privacy Cash
Use Privacy Cash SDK to build privacy-enabled apps on Solana. Ideas include private lending, whale wallets, private bridging, games, and more. Best Overall App: $6k Best Integration to Existing App: $6k Honorable Mentions: $3k in total
Private Transfers with ShadowWire
ShadowWire lets you make private transfers on Solana. You can hide transaction amounts using Bulletproofs (zero-knowledge proofs) while keeping everything onchain and verifiable. Grand Prize: $10k Best integration of USD1: $2.5k Best integration to existing app: $2.5k
Privacy Tooling for Launching Tokens
Build confidential token creation infra for dynamic bonding, private swaps, dark liquidity pools. A seamless solution built to provide confidentiality to memecoin launches and make trading fun with privacy. Best overall: $5k Best integration into Anoncoin: $2.5k Most creative: $2.5k
End-to-End Private DeFi
Build fully confidential DeFi using Arcium, enabling encrypted shared state and use cases like private swaps, lending, borrowing and much more. Best overall app: $5k Best integration into an existing app: $3k Most <encrypted> potential: 2 x $1k
ZK with Noir
Easily build ZK applications using Noir, now possible on Solana. Best overall: $5k Best non-financial use: $2.5k Most creative: $2.5k
Best Confidential Apps with Inco
Build any confidential application across payments, DeFi, gaming, and more using Inco Lightning, a seamless solution built to provide confidentiality at the native speed of your app. DeFi: $2k Consumer, Gaming, Prediction Markets: $2k Payments: $2k
Best Privacy Project with Helius
Best privacy project that leverages Helius' RPCs and developer tooling
Real-time Privacy with MagicBlock
Build real-time, fully confidential applications using MagicBlock's Private Ephemeral Rollups on Solana. Combine confidential state, real-time execution, and compliance-first approach. $2,500 — Best Private App $1,500 — Second Place $1,000 — Third Place
Private Cross-Chain Transfers
SilentSwap is a non-custodial and compliant privacy service that allows users to send and swap digital assets across multiple blockchains. It does not operate as a pooled mixer and never routes assets through centralized exchanges. Instead, it obfuscates transaction paths by leveraging shielded transactions on privacy-enabled blockchains and routing activity through high-volume markets. $5,000 pool for best projects
Public Benefit Prize
Most impactful open-source privacy tooling/repo using Quicknode's RPC
Privacy-Focused Payments with Starpay
Build privacy-focused payment and DeFi integrations using Starpay APIs, including card issuance and ZK Swap for anonymous crypto-to-crypto execution. Use cases: Payments & Spending, DeFi & Privacy (ZK swaps, private execution flows), Consumer Apps. Best overall integration: $2,500 Second place: $1,000
Private & Agent-Based Prediction Markets
Build AI agents that create prediction markets using privacy-focused tokens as collateral, or design private prediction market infrastructure using the PNP SDK. $1k each for 2 winning projects +$500 bonus prize
Compliant Privacy
Build private and confidential applications that are compliant and safe. Use Range's tools for pre-screening and selective disclosure to ensure your privacy-preserving project meets compliance requirements. $1,500 + free API credits for 2 months for all participating teams
Educate about Privacy
Help users understand crypto surveillance and why privacy matters. Educate users about wallet surveillance: $500 Explain privacy without jargon: $500 View full details
Mentors
Get guidance from industry experts
Matthew Klein
Reilabs
More mentors to be announced soon
Resources
Learn how to build with privacy on Solana.
Solana Docs
Official documentation for building on Solana.
Learn MoreTemplates
Ready-to-use project templates to kickstart your development.
Learn MorePrivacy on Solana
Example code and resources for privacy-preserving applications.
Learn MoreTriton RPC
Triton is opening their infrastructure for hackathon participants. High-performance RPC for Solana.
Learn MoreQuicknode RPC
High-performance RPC infrastructure with credits available for hackathon participants.
Learn MoreHacken Extractor
AI-powered threat prevention by Hacken. All hackathon teams can get $2k service vouchers, 30% off Extractor, and free bug bounty hosting.
Learn More> Workshops
Noir on Solana: An intro to verifying ZK proofs with Sunspot
What is Encrypt.trade
Private transactions on Solana with Arcium (for Anchor developers)
Introduction to SilentSwap
> Submission Requirements
- All code must be open source
- Projects must integrate with Solana and use privacy-preserving technologies
- All programs must be deployed to Solana devnet or mainnet
- Submit a demo video (maximum 3 minutes) showcasing your project
- Include documentation on how to run and use your project