zk-Rollup
scalability · rollup
A Layer 2 system that batches transactions off-chain and posts validity proofs on-chain for efficient verification.
A zk-rollup executes many transactions off-chain, compresses their effects, and submits data plus a validity proof to a base chain contract. The proof shows the new state follows the rules.
zk-rollups can improve throughput and reduce fees, but they still depend on data availability, bridge contracts, sequencer behavior, prover performance, and upgrade governance.
Related terms
Rollup
→A Layer-2 technique that executes transactions off-chain and posts compressed proofs or data to the base chain.
layer-2 · scalability
Smart Contract
→Blockchain-enforced program or script logic that controls how assets or state may change.
blockchain · scripting
Virtual Machine
→A deterministic execution environment that runs smart contract code the same way across validating nodes.
computing · blockchain