Linked Questions

On Etherscan the daily GasUsed chart shows current usage of 10-15 bill. How do I convert this correctly to ether (ETH)?.

Let say I have a code that print "Hello World". I deploy it to the blockchain and pay 1000 gas for it. Will my code keep running for every subsequent block till it runs out of gas? Or will it only run ...

I am using web3.js v1 in order to sign and send transactions: async function signAndSend(transaction) { let options = { to : transaction._parent._address, data: transaction....

I checked the official document of ETH and found that there is a gas cost on each opcode. I want to know why the Gas cost is generated. Can I say that gas cost is generated due to the EVM read/write ...

Suppose a smart contract external function uses very much gas, but refunds (with .transfer()) the used gas to the caller. Question: Can it be called with a small amount of gas despite it uses much? ...

I have enough ETH to pay the gas fee. After I click accept the transaction fail and it show out of gas on etherscan. Now the gas have been deducted but no transaction happen. Can someone help? The gas ...

I have a question about this specific transaction: 0xd0dfbefc699ba79c2ddd86b0f7176e3e6491534db0a57597ec7aab9ce3e71726 the transaction is pending for some days now. I offered 5 gwei as fee. Max Amount ...

What is the difference between a transaction and a call? In some interfaces, I can interact with contracts via calls or via transactions. What is the difference between the two, and can contracts also ...

Many sources refer to the use of the "SHA3" cryptographic hash function within Ethereum, but the Ethereum project began before the SHA3 standard was finalised, and there was some confusion/controversy ...

For calculating the transaction fee using web3js I am using it's gas price: eth.getTransaction("txhash").gasPrice multiplied by how much gas was actually used: eth.getTransactionReceipt("txhash")....

When I am calling (sending a transaction to) a contract how do I determine how much gas to use? Is there a way to calculate this upfront & what happens if I send too much / too few gas?

Ethereum is a great blockchain, but for some services the transaction fee is prohibitively too expensive. Is there any project and/or guideline on making Ethereum so it works on permissioned ...

Basically you don't need to pay fee for contract call, but if a contract method does lots of work, you need to add gas in contract call to prevent DoS attack like this: contract.method.call({gas: ...

Why does Ethereum have gas? What other approaches could Ethereum have used to work around the Halting Problem?

How Does One Estimate The Gas Fee Of Particular Smart Contract Function Call? I Am Aware Of Using web3.eth.estimateGas How Can One Take This Estimated Gas Result and Depending on Network Connected ...