Mansoor Buttmansoor-eth.hashnode.dev·Nov 19, 2024Storing Static Type in Solidity's StorageLet’s first have a look at the Code contract Demo{ uint256 a 1234 // slot 0 uint8 b = 0x12; // slot 1 uint8[6] c = [1,2,3,4,5,6]; // line 4 (slot 2) uint256[2] d = [10,20] // line 5 slot(3 & 4) function getSlotvalue(uint slot) public...DiscussMastering the EVMSolidity
Gurnoor SinghforWriting Your First Smart Contractwriting-your-first-smart-contract.hashnode.dev·Nov 19, 2024Remix and Writing Your First Smart ContractIntroduction to Solidity and Remix .sol File Extension: Files with the .sol extension are Solidity contracts. SPDX License Identifier (// SPDX-License-Identifier: MIT): Although not required by the compiler, including this identifier is recommended...DiscussBlockchain
Mansoor Buttmansoor-eth.hashnode.dev·Nov 18, 2024Storage in Structs (Solidity)Lets first look at the code contract A { struct SomeStruct{ uint256 val1; uint16 val2; bool val3; } uint256 a = 3; // slot 0 uint256 b = 0x555 // slot 1 SomeStruct structVar = SomeStruct(0x2345,5,true) // Line 10 function getSlotVal(u...DiscussSolidity
Samarth Saxenaawesamarth.hashnode.dev·Nov 15, 2024Mainnet Forking in FoundryIntroduction When developing smart contracts, we often need to interact with contracts that have already been deployed. It would not be a smart decision to deploy the contract and test it on Mainnet using real ETH. But, thankfully for us, there is a ...DiscussFoundry ModeBlockchain
Hussaina Usmanhussaina.hashnode.dev·Nov 14, 2024What Are Smart Contracts and How Are They Revolutionizing Finance?Smart contracts are one of the core building blocks of Web3 and decentralized finance (DeFi). They promise a future where transactions can be executed automatically without intermediaries, adding speed and trust to digital agreements. But what exactl...DiscussSmart Contracts
RivanorthProblog.rivanorth.com·Nov 13, 2024Hack Explained - DeltaPrime 2DeltaPrime, a decentralised finance (DeFi) protocol, operating on the Arbitrum and Avalanche blockchains, suffered its second security incident in a matter of months, leading to the loss of approximately $4.85 million. DeltraPrime lost $6 million in ...DiscussWeb3Security
Kehinde Sodiqdevadejare.hashnode.dev·Nov 12, 2024Smart Contracts: Transforming Traditional ContractsTHE IMPACT OF SMART CONTRACTS ON THE INDUSTRIES LIKE FINANCE, REAL ESTATE AND SUPPLY CHAINS. What are Smart Contracts? A smart contract is a self-executing contract with the terms of the agreement written directly into code. It operates on blockchai...DiscussBlockchain
Daciandacian.me·Nov 10, 2024Find Highs Before External Auditors Using Invariant Fuzz TestingMany high severity findings found during private audits by external auditors could have been found by the protocol developers themselves using invariant fuzz testing prior to engaging external auditors. While this doesn’t require developing an “attac...Discuss·14 likes·834 readsDeep DivesEthereum
Kehinde Sodiqdevadejare.hashnode.dev·Nov 7, 2024Step-by-Step Guide to Developing an NFT Smart Contract (ERC721) Using AlchemyINTRODUCTION: Non-fungible tokens (NFTs) have revolutionized how digital assets are created, owned, and traded. ERC721, the most common standard for NFTs on the Ethereum blockchain, provides a framework for creating unique, indivisible tokens. In thi...Discuss·1 likeNFT
Abcom Distribution LLCabcomblog.hashnode.dev·Nov 6, 2024Transform Your Workspace with Octopus Solutions: Smart Features for Modern OfficesAs workplaces evolve, businesses need technology that helps teams work faster and smarter. Octopus provides tools that do just that, with features designed to make offices more productive and secure. Whether it’s using AI to automate tasks, NFTs to p...DiscussNFT
