Understanding Optimism’s Role in Scaling Ethereum

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Hi everyone… :wave:

I am new to the Optimism ecosystem and have been finding its potential for scaling Ethereum. I have read about its use of optimistic rollups to reduce gas fees and increase transaction throughput, but I had love to move deeper.

Specifically, I am curious about:

  1. How Optimism ensures security while processing transactions off-chain.
  2. The role of fraud proofs in maintaining trust and how frequently they are challenged.
  3. Any notable dApps that are making the most of Optimism’s scaling solutions.

I check this: https://gov.optimism.io/t/links-to-help-understand-optimism-maybe-useful-before-considering-chasalesforcedeveloperonlinecourse But I have not found any solution. Could anyone guide me about this? I had also love to hear from those who’ve deployed smart contracts on Optimism—what was your experience like compared to deploying on Ethereum directly?

Looking forward to learning from the community and contributing as I get more familiar.

Thanks in advance!

Respected community member! :blush:

1 Like
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Hello. For technical questions about OP Stack, please post them in this forum.

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Welcome! Great to see your interest in Optimism :rocket:

  • Security: Optimism processes transactions off-chain but posts data on-chain. If someone submits a fraudulent transaction, others can challenge it using fraud proofs during a 7-day window.
  • Fraud Proofs: They’re rarely needed but essential — they act as a safety net to ensure correctness.
  • Notable dApps: Synthetix, Velodrome, and Uniswap are actively using Optimism for faster, cheaper transactions.
  • Dev Experience: Deploying on Optimism is almost identical to Ethereum — same tooling (Solidity, Hardhat), but faster and much cheaper.

It’s a smooth transition for Ethereum devs. Let me know if you need resources to get started!