I'm on a course and have run into a problem. I am trying to make a function that shows the difference in team score from the perspective of the team in the vari
For example, in this PATRICIA tree, if I want to prove that the key 'fc' has no value mapped to it, should I bring up the branch node stored the data value &ld
I am trying to sign a message with wallet connect using ethers, but I am facing an issue when verifying the message with ambire wallet, it's not returning any r
Macbook Pro : Monterey Intel Core i7 Brownie v1.17.2 I am learning solidity according to reference(https://www.youtube.com/watch?v=M576WGiDBdQ&t=25510s). Wh
I'm trying to send a permit for a transaction, but I get a function call mismatch return if I call through the smartcontract token function. If I call via encod
I am currently using a public RPC URL to interact with smart contracts on a Ethereum-forked blockchain. I would like to understand if there are any limitations
I'm trying to develop DApp on polygon blockchain. Basically I'm minting NFT but after few mints I get this error. It even happens when I don't mint NFT. Here is
I am asking this question so that I want to easily know how many transactions occurred at a particular Bitcoin price. For example, at the price of $20T per BTC,
i have issue on web3.eth.defaultAccount = web3.eth.getAccounts(); below is the code. it said Uncaught (in promise) TypeError: Cannot read properties of undefine
I deployed an ERC20/BEP20 token on binance smart chain using truffle and openzepplin. Now I want to verify this smart contract but I have some issues. $ truffle
I am trying to implement a merkle tree just like merkletreejs but python does not have any good libraries that support keccak256 and sorted keccak256 trees. Doe
I want to Integrate Login and Signup with Meta mask in ASP.NET MVC. looking for it for so long. Checked Metamask tutorial but it has code in node.js and the lib
I wonder if anyone has successfully requested ether on https://faucet.rinkeby.io/? I followed the instruction and it kept saying Faucet offline. Any workaround
I've been looking for a way to download all transaction from a specific contract since their start up until now. It's around 25k transactions as of today. I've
I would like to get the data that's displayed on BscScan programmatically, but their API seems quite limited, and I would like to avoid parsing HTML content to
If I mint a collection of n items on my own address (via smart contract) , it'll be publicly visible on my account under the collected / created section like th
I am new to smart contracts and I am working on an Eth Rinkeby dapp and was wondering if anyone can tell me what the "16" means in this section: } network =
I have a security problem in my Solidity contracts and I can't figure out how to fix it. The flow goes like this: First, we create an instance of contract A; Cr
Hi I was following uniswapV2 document to perform a trade transaction and I encounter error as follow invalid bignumber value I got my input amount as 2941991120
I followed the instructions and install all the prerequisites that was listed as required to setup Embark; however, when I reached the dmo test piece, I am not