NAVIGATIONAL KNOWLEDGE ATLAS

LAYER-2 WIKI

A cartographic guide to Layer-2 blockchain protocols, scaling solutions, and the expanding frontier of off-chain computation.

SEC. 01 PROTOCOL TERRITORIES

Optimistic Rollups

7-day fraud proof window

ZK-Rollups

Zero-knowledge validity proofs

State Channels

Off-chain bilateral agreements

Plasma Chains

Child chain frameworks

Validium

Off-chain data availability

Bridges

Cross-chain shipping lanes

Data Availability

Sampling & committee proofs

Sequencers

Transaction ordering engines

EVM

EVM Equivalence

Compatibility classifications

Fraud Proofs

Challenge verification systems

L3 / Appchains

Application-specific layers

Shared Sequencing

Cross-rollup coordination

SEC. 02 ECOSYSTEM CHARTS

Arbitrum

Optimistic rollup ecosystem

OP Stack

Superchain modular framework

zkSync

ZK-rollup with native AA

StarkNet

STARK-based validity rollup

Polygon zkEVM

EVM-equivalent ZK rollup

Scroll

zkEVM bytecode-level compat

Base

OP Stack consumer chain

Linea

Lattice-based zkEVM

REF. --
N E S W
49.2°N 02.1°W
DEPTH: 12 FATHOMS
SCALE 1:50000
CHART DATUM: LAT