Decentralized Autonomous Organization governed by token holders

The Ethereum Virtual Machine is like the worldwide, shared computer that runs all the programs on the Ethereum blockchain.

Service providing external data to smart contracts

Splitting blockchain into smaller pieces for scalability

A Layer 0 refers to the technology and infrastructure that lets different, separate blockchains work together.

Scam where developers abandon project with investor funds

Rollup definition

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Oct 04, 2025

Definition

Layer 2 scaling solution bundling transactions

Optimistic rollups assume validity, challenging fraud; zk-rollups prove it via math, with Starknet leading in privacy-focused apps. Types: Optimistic (Arbitrum), ZK (zkSync). Data: Calldata to L1. Fees: 90% L1 reduction.

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Advanced Concepts

Related Terms

DAO

EVM

Oracle

Sharding

Layer 0

Rug Pull