🌐 ZK in Action: Zcash, Tornado Cash & Rollups
Explore real-world applications of zero-knowledge proofs in blockchain
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Types of ZK Proofs
🌍 Real-World Applications
ZK proofs are not theoretical—they secure billions in production. From Zcash's privacy to zkSync's scaling, here's where ZK proofs solve real problems.
🎮 Interactive: Explore Use Cases
Select an application domain to see production deployments
🔒
Private Transactions
Hide transaction amounts, senders, and receivers while proving validity
💡 Example Use Case
Alice sends 10 ETH to Bob. Public sees: transaction occurred. Private: amount, sender, receiver.
Zcash
ZK-SNARKs (Groth16)
Privacy coin with shielded transactions
📊 $600M+ market cap, 15M+ shielded transactions
Tornado Cash
ZK-SNARKs (circom)
Ethereum mixer for private transfers
📊 $1B+ mixed before sanctions
Aztec Network
Plonk ZK-SNARKs
Privacy layer for Ethereum
📊 zkMoney: Private DeFi
🏆 Major Production Deployments
💰
Zcash
Privacy Coin (2016)
• Users: 1M+ addresses
• Volume: 15M+ shielded tx
• Tech: ZK-SNARKs (Groth16)
First production ZK blockchain
⚡
zkSync
Layer 2 Scaling (2020)
• TVL: $500M+
• TPS: 2000+
• Tech: ZK-SNARKs rollups
Leading Ethereum L2
🛡️
StarkNet
General ZK Rollup (2021)
• TPS: 10,000+ potential
• Language: Cairo
• Tech: ZK-STARKs
Transparent, quantum-resistant
📦
Mina Protocol
Succinct Blockchain (2021)
• Size: 22KB blockchain
• Tech: Recursive SNARKs
• Benefit: Any device can verify
World's lightest blockchain
🚀 Future Applications
🏥
Healthcare
Prove medical eligibility without revealing health records. Privacy-preserving clinical trials.
🗳️
Voting
Verifiable elections where votes are private but results are provably correct.
🎮
Gaming
Prove game state validity without revealing strategy. Cheat-proof multiplayer.
🤖
AI Verification
Prove AI model ran correctly without revealing model weights. zkML.
📊 Market Impact
$5B+
Total Value Locked in ZK protocols
100M+
Transactions processed with ZK proofs
50+
Production ZK protocols launched