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Ethereum

r/ethereum

46

pinned by moderators

Posted by

Ethereum Foundation - Joseph Schweitzer

2 days ago

[AMA] We are EF Research (Pt. 10: 12 July, 2023)

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59 comments

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Posted by11 hours ago

Differential fuzz testing upgradeable smart contracts with Diffusc

blog.trailofbits.com/2023/0...

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2 comments

7

Posted by6 hours ago

Did Metamask update their user interface for the first time ever?

Never thought I would see this day. It even shows your NFTs now.

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1 comment

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Posted by12 hours ago

Best way to protect my users from sandwich attacks?

I don't have an enormous amount of eth to add to the liquidity of my token which I know can open up any buyers of my token to getting sandwiched. I've researched a couple counter measures to help my users and wondering if anyone has experience with this or can provide any better options?

Right now it looks like launching on 1inch is the best options as it directs traffic directly to trustworthy validators. The other alternative is encouraging users to use a different rpc's such as flashbots or mevblocker (not sure if these actually protect from mev bots pls correct me if I'm wrong).

I'd like to not waste capital on relaunching my token if possible and testnets don't test for these mainnet situations. Any help is greatly appreciated

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5 comments

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Posted by14 hours ago

Understanding Solidity Part 1-3

Hello fellow builders! This is a tutorial series that I've written as part of a job application process teaching people the inner workings of Solidity and EVM through writing it from scratch in the Rust programming language. Since I didn't get the job at the foundation this is where I might leave this series hanging, unless there is a strong interest from the community for this sort of thing. You can find the first 3 parts on my blog:

Understanding Solidity Part 1: Project Setup https://theoxd.github.io/blog/understanding-solidity-part-1/

Understanding Solidity Part 2: Parser and Grammar https://theoxd.github.io/blog/understanding-solidity-part-2/

Understanding Solidity Part 3: Virtual Machine https://theoxd.github.io/blog/understanding-solidity-part-3/

Hope someone finds this useful. /Theo

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1 comment

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Posted by18 hours ago

Layer 2 NFT minting that gets written to ethereum base layer?

I'm ignorant when it comes to NFTs, I just had a look at opensea and rarible for the first time in a couple of years. According to the docs opensea supports a bunch of chains, mainly L1s, but also Optimism.

Am I right to assume that roll-ups ought to be able to make NFT minting possible on layer 2s, while having the NFT written to the ethereum base layer, or am I completely misunderstanding the type of data that can be shared between layers.... smart contracts vs account balances and suchlike?

ZKsync has had an nft minting service for a while, not sure how it works.

If layer 2 NFTs are essentially native to/stuck on their specific chains, this would make the future minting of NFTs on eth massively expensive when the chain gets more usage.

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10 comments

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Posted by16 hours ago