Top new questions this week:
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Two USDC transfers in the same block, both between non-contract addresses. Both call the same smart contract function transfer() but used very different gas. Some differences I can explain (see below) …
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Which use cases might lend themselves to one implementation versus the other?
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I am trying to buy an NFT through the Seaport contract but getting stuck on the SALT parameter.The Seaport contract specifies the following list of parameters as inputs. struct BasicOrderParameters { …
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contract EventContract { struct Event { address organiser; uint price; uint totalTickets; uint ticketsAvailable; uint startDate; uint endDate; …
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Please correct me if I am wrong in any of the following statements. All the ETH for ETH2 staking are sent to the Beacon Deposit Contract address. Choose a random validator from Beaconscan and we can …
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If I buy a new Ledger out of the box (untampered by the seller) and generate its seed phrase (Attempt #1), but then format the device to factory settings in order to once again re-generate a seed …
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I was trying to use Openzeppelin Address library sendValue(), and it kept showing error Member “sendValue” not found or not visible after argument-dependent lookup in address.solidity(9582) …
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Greatest hits from previous weeks:
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How do we start mining Ether on a Debian / Ubuntu / GNU+Linux based computer? Are there PPAs or special repositories?
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Where can I find a description (preferably a diagram like below) showing the block structure in an Ethereum blockchain? Credits: Wikipedia
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What does this warning actually mean and how to resolve this ?
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This Q&A was spawned by the fact there’s no one good place with this information. All answers will be wikis. A few of us are going to be collaborating on this effort. Please keep one answer per …
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Are there any rinkeby testnet Faucet’s that don’t require social network accounts? www.rinkeby.io/#faucet wants requests centralized twitter/g+/fb posts.
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How fast is Ethereum blockchain growing and how big is it likely to get in the future? Is it still about 1 GB per month? Are there any data pruning or compression algorithms in place or planned to be …
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What criteria does a valid Ethereum address need to fulfill, is it just a random number in hexadecimal? Or does it need to be derived in a specific way, according to some cryptographic algorithms? …
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Can you answer these questions?
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Been a while I used my gnosis safe and now I’m trying to claim my safe airdrop and discovered I can’t find my 2 other wallet information and I’ve got access to only one out of my 3 wallets. I can’t …
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I would like to rent a bare metal server (such as Vultr or Scaleway), pay in crypto, and also not make an account with email but authentication somehow via the blockchain. I know MetaMask can be used …
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Is there any fully open-source(including the browser extension code) Ethereum wallet? I just wanted to rebrand the wallet, tweak the UI and create a new one. Found that metamask is fully open-source …
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