Top new questions this week:
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This block was finalized 21 mins ago from now and there is one exactly like this waiting to get finalized Here is the link of that. Both of them had 0 transaction, 0 block reward, 0 extra data, 0 gas ...
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Is there a simple way to find out if a given block is finalized in PoS Ethereum?
Currently, I'm calling the endpoint ../eth/v1/beacon/states/finalized/finality_checkpoints of the Beacon Node and it ...
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I would like to define a function like this:
function convert(ufixed x) external pure returns (uint256 result) {
result = x * 1e18;
}
Unfortunately, the code above does not compile:
TypeError: ...
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I understand all wallets must connect to some kind of node that exposes JSON-RPC, either a publicly run Node as a Service, or run by yourself.
My question is, why can't you post transactions to the ...
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Just get started on Solidity, and it doesn't seem like the image/video is embedded directly into the contract. Where are those assets stored in fact?
Perhaps the approach varies among markets, it ...
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I would like to verify that a message is sent by a certain address, and to get the signer address I use the following function:
function VerifyMessage(bytes32 _hashedMessage, uint8 _v, bytes32 _r, ...
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Say i have a hash - I think sha256/keccak:
90ad6dec4ce7167e92c7a7122232d48a1fd5e6c5e81cb3f45c147424b6728437
What do i do with it?
Is there something on etherscan that can decipher it or show what it ...
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Greatest hits from previous weeks:
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The Ethereum frontier network currently uses a proof of work (PoW) consensus algorithm, while a future version of the network plans to utilise a proof of stake (PoS) algorithm instead. What's the ...
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When I include web3 in a project I am getting node compile errors like this...
ERROR in ./node_modules/cipher-base/index.js 3:16-43
Module not found: Error: Can't resolve 'stream' in '/Users/xxx/dev/...
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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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What I have
1. I am able to create new account with personal.newAccount() method of web3 api.
2. I am working on my private blockchain.
3. geth node start with following command:-
geth --datadir ~/...
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I know I can backup the keystore files from my running ethereum client which holds my accounts.
But how can I backup wallets created with mist? Is it enough to write down the public address where the ...
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Have a Geth 1.5.5 node running on a raspberry pi 3. When I type in
sudo systemctl status geth
I'll get ever changing time and block information. Neat, but how do I know when I am synced up? Is ...
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So after doing a 'system restore' on my Ol' Faithful laptop, and reinstalling Chrome, my MMask extension was no longer there. Thankfully it's on mobile and I have the seed-phrase. The probs started ...
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Can you answer these questions?
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In documentation :
// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.8;
// Represent a 18 decimal, 256 bit wide fixed point type
// using a user defined value type.
type UFixed is uint256;
///...
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Is it possible to create a smart contract that receive a specific BEP20 token named X, from a wallet address, and send it back the same amount of a specific ERC20 token named Y ?
of course the smart ...
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I am writting a data aggregator for DeFi exchanges and I need to collect all historic state changes that occur in certain smart contracts of interest. I suppose one way to do it would be to do a fresh ...
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