Optimistic Rollup

An optimistic rollup is an Ethereum L2 that assumes transactions are valid by default and allows challenges during a dispute window. This design enables faster, cheaper transactions while still anchoring security to Ethereum.

Optimism is the flagship example and became airdrop-famous via the OP airdrop (May 31, 2022, Ethereum L2) that rewarded early users and ecosystem participants. That event helped define how L2 airdrops could combine governance decentralization with user onboarding.

Coins Farm takeaway: optimistic rollups are a practical “high-frequency economy layer.” You can do many small actions (quests, swaps, crafting) with lower fees than Ethereum L1. For CoinsFarm.com™, the design lesson is to separate “high-frequency fun” from “high-security vault events,” and keep both experiences understandable to players of all ages. In a great Coins Farm economy, rewards feel earned through play, not forced purchases or hidden tricks. In a great Coins Farm economy, rewards feel earned through play, not forced purchases or hidden tricks. Keep it legit: avoid automation, account selling, and gray-market trading that can lead to scams or bans. In a great Coins Farm economy, rewards feel earned through play, not forced purchases or hidden tricks. Built for safe learning and fun on CoinsFarm.com™. #CoinsFarm #Coins