Top new questions this week:
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Are these scenarios possible in the existing EVM based systems: NOTE: I understand that the probability of this happening is very small, but EIP-3607 assumes this probability and tries to reduce the …
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I executed some contract creation scripts by terminal through hardhat, “npx hardhat run….” what I noticed is balances of hardhat accounts are not reduced. Meaning as there is no gas spent …
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I had been watching a course online, where I learnt that we can compile & deploy any smart contract to blockchain and then with web3.js we can interact with the smart contract. So why do we need …
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My contract requires holding a history of all interactions to it. I have a hook for everything except tokens being sent to the contract — this requires a separate array of history from everything else …
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I started geth with full syncing (and synced 14M blocks) and later realized I can use snap syncing. I just restarted geth with –syncmode=snap but I can’t tell from the logs if geth has switched to …
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Suppose I have this bytes pad: 0x0123456789abcdef How can I make it like this: 0xfedcba9876543210 Just by Solidity and not by Assembly.
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I’m planning on setting up a Geth Node to monitor the txpool. I know that more nodes spread out geographically means you will receive new transactions quicker, but does the sync mode have an effect?
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Greatest hits from previous weeks:
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I am following these instructions. The problem is that the above instructions don’t mention Chain ID and it appears Chain ID is required to even make it work. Thus, I’m stuck. What is the Chain ID? …
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I sent some amount of ETH to a wallet. I checked the wallets balance on ether chain. I entered the address in the search field and noticed both lowercase and uppercase versions of the address seemed …
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One of the answers to this question suggested using Geth’s –fast flag to help quickly synchronise the block data. How does the flag work, and how does using it speed up the synchronisation? Are we …
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Im trying to send a raw transaction using web3 to ropsten testnet and Im getting this error: replacement transaction underpriced where sometimes my tx works and sometimes I get this error. my tx …
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I noticed that address’s offer two member functions that perform the transfer of ether to the specified address. send returns false upon failure and transfer raises an exception. In the Solidity …
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I would like to start mining Ether, but my GPU isn’t the greatest and I don’t really want to spend the money on a dedicated rig. Is mining from my CPU (in a Linux environment) still worth the Ether? …
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I m trying to print out the variable (compiled_sol) as you will see in the code below of the python file named deploy.py so I can deploy my smart contract, but I keep running at this error *****INFO: …
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Can you answer these questions?
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we are testing the 0x API our goal is to get more details, like the top 5 rates along with the best rate also routing information can anyone point me in the right direction, please by default, it only …
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I am currently developing a donation smart contract for the Polygon blockchain. The donation contract should receive many types of coins like (MATIC, USDT, USDC, etc.). I first made the donate …
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Roughly speaking, geth determines its external IP by inspecting the endpoint from ENRequest’s PONG message. The local IP address which receives most statements is considered to be the external IP. …
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