Base
Layer 2 · Ethereum
Ethereum layer 2 incubated by Coinbase, built on the OP Stack.
Starknet is a layer-2 network that proves the correctness of batched execution using STARK proofs, so Ethereum verifies a succinct proof rather than re-executing transactions. Unlike optimistic rollups there is no challenge window, because validity is proven rather than assumed. Contracts are written in Cairo, a language built for provable computation.
Other projects in Layer 2 and adjacent categories.
Layer 2 · Ethereum
Ethereum layer 2 incubated by Coinbase, built on the OP Stack.
Layer 2 · Ethereum
Optimistic rollup that settles Ethereum transactions at lower cost.
Layer 1 · Solana
High-throughput layer 1 with parallel transaction execution.
Gaming · Ethereum
Rollup and toolchain purpose-built for blockchain games.