ZK-SNARK
A ZK-SNARK is a compact zero-knowledge proof construction designed for efficient verification without interactive back-and-forth.
✦ Key Insight
It helps readers compare proof systems instead of treating all ZK technology as identical.
✕ Common Misconceptions
Do not assume every SNARK has the same trusted-setup requirements or cryptographic assumptions.
Detailed Explanation
In Practice
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Smart Contract
A smart contract is blockchain-deployed code that can hold state and execute predefined rules when called.
On-Chain Data
On-chain data is information recorded directly on a blockchain, such as transactions, balances, contract events, and block information.
ZK Rollup
A zero-knowledge rollup is a Layer 2 system that batches transactions and uses validity proofs to demonstrate correct state transitions to the base chain.
Hash
A hash is a fixed-length output produced by a cryptographic hash function from arbitrary input data.
Finality
Finality is the point at which a blockchain transaction is considered effectively or cryptographically irreversible under that network's consensus rules.