BlockChain

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In this article, let's look at how you can perform off-chain computation using Ethereum signatures. Cryptographic signatures can be used to validate the origin and integrity of messages. Then, we'll examine real-life use cases of off-chain computation such as decentralized exchanges, state channels, and meta transactions.

A compilation of patterns and best practices for the smart contract programming language Solidity - fravoll/solidity-patterns: A compilation of patterns and best practices for the smart contract pr...

Digging deep into the EVM mechanics during contract function calls

Best resources for Solidity gas optimizations ⛽. Contribute to iskdrews/awesome-solidity-gas-optimization development by creating an account on GitHub.

A curated list of awesome things related to learning Zero-Knowledge Proofs (ZKP). - matter-labs/awesome-zero-knowledge-proofs: A curated list of awesome things related to learning Zero-Knowledge Pr...

Abstract Generally disallowing state-changing effects after an external function call and enabling the possibility to mark functions that specifically do this. Motivation I started this discussion ...

A curated list of Smart Contract Security materials and resources For Researchers - saeidshirazi/Awesome-Smart-Contract-Security: A curated list of Smart Contract Security materials and resources F...

My blockchains adventure continues! This time I protected Moonbeam network by disclosing a critical design flaw, safeguarding more than $100M assets at risk in various DeFi projects. I was awarded the maximum reward amount of their bug bounty program on Immunefi, $1M, and $50k bonus from Moonwell (I guess that’s also one of the top 10 highest bug bounties?)

An interactive reference to Ethereum Virtual Machine Opcodes

How does the Uniswap-v2 contract work? Why is it written that way?

“There are some extremely successful bounty hunters in web3. However, nobody tells you how they do it. Until now. Here is how you can become a bug bounty millionaire. 🧵👇”

Contract invariants are properties of the program program state that are expected to always be true. In my previous article I discussed the use of Solidity assertions to check contract invariants. This article expands on the use of invariants and provides a couple of additional examples. An interesting feature of invariant checking on the bytecode level is …

Semgrep rules for smart contracts based on DeFi exploits - Raz0r/semgrep-smart-contracts: Semgrep rules for smart contracts based on DeFi exploits

Contribute to razzorsec/AuditorsRoadmap development by creating an account on GitHub.

A Guide on How to Start and Common Bugs you can Find, All in 13 Quick Parts

Alejandro Munoz-McDonald, Smart Contract Triager at Immunefi, did a presentation on the world's largest bug bounty payouts that were done through Immunefi's ...

Here we collect and discuss for Smart contract security & Blockchain researches and tools - contributions are welcome. - tamjid0x01/awesome-smartcontract-hacking: Here we collect and discus...

A blog about blockchains and smart contracts development

Read writing from Phan Sơn Tự on Medium. A lucky guy was born in the Age of Cryptocurrency Boom. Every day, Phan Sơn Tự and thousands of other voices read, write, and share important stories on Medium.

Contribute to euler-xyz/uni-v3-twap-manipulation development by creating an account on GitHub.

Price oracle manipulation attacks in defi. Contribute to calvwang9/oracle-manipulation development by creating an account on GitHub.

A curated list of EVM resources for aspiring shadowy super coders.

Contribute to eugenioclrc/secureum-a-maze-x-challenges development by creating an account on GitHub.

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Background

You are probably safe, but be aware…