All Questions
912 questions
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8
views
Two of my transactions were not completed
Two of my transactions were not completed but I was charged for them. How do I get the fees back? It's around $25.
0
votes
0
answers
5
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Problems in experience of blockchain splitwise
When I was running code of this splitwise code by using "npx hardhat run --network localhost web_app\script.js",but it answered back with the fault:"cannot find module abiDecoder",...
- 1
0
votes
0
answers
23
views
ERC-20 Token Lookup
I am looking for an ERC-20 token with only the Name (Ticker), but when I search that up on Etherscan I come up with many many options.
Is there any way yo look these up by other criteria such as ...
0
votes
2
answers
59
views
Why is my transaction showing as 'success' but the value is 0 ETH ($0.00)?
I am new to the bitcoin world and any help would be appreciated.
Transaction hash: 0xfba22d3b6d047bbd81d25dd5d6ef3f070f57f79abeaeb4de49e7dc605ab4cb7c
If I was scammed, is there any way to recuperate ...
1
vote
1
answer
41
views
Why I need an RPC URL to call a view function in Solidity
hello so my question is why I should need a RPC Url while calling a view function
Here is my simple code that is deployed in the localhost anvil testnet and that run successfully and there I did not ...
1
vote
0
answers
37
views
How to connect private PoS networks on different servers?
I created my own private PoS Ethereum testnet using a custom genesis file. I can connect to the first node using RPC and see block generation, and I can make transactions. Now, I want to run a second ...
- 11
0
votes
0
answers
15
views
I got scammed by Robot [duplicate]
There's APP called ETH MINER ROBOT. I withdraw 0.1ETH to my Binance Account and never received it.
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0
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0
answers
11
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I got scam from one pretty girl she told me invest USDT up to 5k and earn daily profit, refer this website, "ogfvs.top" ETH-ERC_20 [duplicate]
I got scam from one pretty girl she told me invest USDT up to 5k and earn daily profit, refer this website, "ogfvs.top" ETH-ERC_20 by using this website, and i lost my USDT 4600 recently, ...
- 1
0
votes
0
answers
18
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Private Node Network-GoEth
i am trying to install private network of three nodes on my single laptop.
i did following:
install go-eth.
used a medium article and followed instructions
when i try to connect nodes with each other,...
0
votes
1
answer
18
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Can someone spend native Ethereum from a signer's address using just a signature?
I'm exploring Ethereum's cryptographic features and wondering if there’s a way for someone to use a signature to spend native Ethereum (ETH) from the signer's address without directly requiring the ...
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0
answers
17
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ETH tokens sent to BNB address in Safe Wallet
Some ETH tokens have been sent to a BNB safe address in Safe Wallet. To recover them I have followed this procedure: https://share.zight.com/z8uBKZYr.
The wallet owner of the Safe Wallet is: ...
- 1
0
votes
1
answer
460
views
Some one make a fake token transfer from my friend wallet without having his PK
Now how is that possible? https://etherscan.io/address/0x781C2EA34506d904573E7E92be19154B729B2EE5#tokentxns
this guy send 65 ETH to an address but some scammers sent 65 ETH token(fake) with his ...
0
votes
0
answers
16
views
How to add new consensus protocol for the Ethereum Quorum?
I am interested in adding a custom consensus protocol to Ethereum Quorum.
I would like to know if it's feasible to integrate my own custom consensus protocol into Quorum.
If adding a custom consensus ...
- 1
0
votes
0
answers
13
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I exchanged scam tokens,pls help me [duplicate]
I exchanged ETH for scam coins through BYBITWEB3 on UNISWAP, now they cannot be sold on BYBITWEB3 DEFI (he writes that the contract has closed source code) and when trying to reverse exchange through ...
0
votes
0
answers
28
views
Recovering crypto from ethereum RPC
I have found some of very old RPC credentials on ethereum. I tried to run it or try to recover the balance from it. But the hostname it had is down. If I get other RPC hostnames and same credentials ...
0
votes
0
answers
7
views
If two persons split the minting process payment 80-20% on opensea , what are the rights and risks of each one on NFT?
I am new to NFT minting.
I created a collection and am about to create a NFT .
Someone has a buying customer on opensea for my Artwork to be minted. He suggests to pay 20% of the minting fees while I ...
- 1
0
votes
1
answer
8
views
How I decrease the gas fee when I call the contract method?
Deploying my contract on rinkeby cost ~12 USD in gas fees (using truffle cli). Is it possible for me to specify gas fees/set a limit in the smart contract so it costs me 0.5 USD, but takes longer to ...
- 101
0
votes
0
answers
7
views
Lost ETH using BOT [duplicate]
I am a newbie and saw a video in YouTube about setting up ETH contract using BOT. The code was also given by the YouTuber. I created the contract and linked it to MetaMask and then transferred ETH to ...
- 1
0
votes
1
answer
43
views
Failing while trying to deploy ETH SAFE on BASE. What am I missing?
I tried following the steps outlined here:
https://help.safe.global/en/articles/40812-i-sent-assets-to-a-safe-address-on-the-wrong-network-any-chance-to-recover
https://share.zight.com/z8uBKZYr
This ...
0
votes
2
answers
223
views
How to mine on a POS private network
For testing purposes, I source-installed go-ethereum and built a private network.
After setting up the genesis.json file, I successfully created a private network, but I don't know how to mine the ...
- 1
0
votes
1
answer
53
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Best Practices for Gas Optimization in Ethereum Smart Contracts
Ethereum community!
I'm currently working on developing a smart contract for a decentralized application (dApp) on the Ethereum blockchain. I'm concerned about optimizing gas usage to enhance ...
- 5
0
votes
1
answer
24
views
How to enable multi-payment in the NFT marketplace like ETH, USDT, MATIC, DAI, etc?
Hope you are doing great.
I'm trying to build a NFT marketplace with multi-payments.
When users buy a NFT, they must be allowed to pay with any of the payments such as ETH, USDT, MATIC, DAI...
How to ...
1
vote
1
answer
72
views
How to setup a private GoEthereum network
I'm studying Ethreum by creating by own private ethereum network. I have three basic question. I will give as much information as I can to help to get great responses.
My network setup is very simple:
...
- 11
0
votes
0
answers
28
views
Ethereum Private Network Upgrade Help
I want to mimic the Dencun upgrade on my private network which is currently running the Shanghai version. I want to understand how to upgrade the ethereum network without stopping it / restarting it / ...
2
votes
1
answer
77
views
C code to sign a message compatible (such that can be verified) with Metamask, mycrypto, etc
I am on macOS and trying to put together the code to sign (and once I succeed to verify) a message with an Ethereum private key. So, the private key (just used to test, no funds there lol) is: ...
- 21
0
votes
0
answers
42
views
Geth Private Network - Account management
I'm building a private blockchain using Geth. I created 2 accounts with command geth --datadir miner-node account new and geth --datadir rpc-node account new, then I added their address to genesis....
0
votes
1
answer
113
views
Geth version 1.14.4-stable Error: authentication needed: password or unlock. Transfer issue?
I want to make a transfer between two wallets; one is the address I set up on my private blockchain, and the other is my Metamask address. However, I keep encountering the same error. I have attached ...
- 5
0
votes
0
answers
30
views
Geth private network security
I'm implementing a private network with Geth, which is expected to go into production for a client.
What are the most important points to focus on regarding the security of my blockchain?
I was ...
0
votes
0
answers
19
views
Possible to use CallContract during validation (on block not yet included in blockchain)?
I'm building a consensus engine. Already built a prototype of it, and now interested in improving it (mostly simplifying the implementation so it fits better with existing Ethereum codebase with least ...
- 211
0
votes
0
answers
123
views
Is it possible to establish a local network between specific Ethereum accounts within the same operational system using Geth?
I tried to launch a local network using Geth. I mean a network of just one running system that hosts some Ethereum accounts. I did that by the below config file and the below command to run Geth node. ...
- 567
0
votes
0
answers
30
views
Server returned HTTP status 404 Not Found
I am running a local ethereum PoA(clique) network in my windows computer using geth with 2 nodes. I am very new to this.
I am trying to get the performance data of the chain using prometheus.
I used ...
0
votes
0
answers
44
views
Lodestar Becon Layer Error
I am trying to set up a beacon client for my private network, I got this error, Error: First offset must equal to fixedEnd 2736633 != 2736653.
What does this mean?
The config.yaml file for the beacon ...
0
votes
0
answers
152
views
"Waiting for deposit to be observed by beacon node pubKey=0x8b189a7f4669 status=UNKNOWN_STATUS" in Prysm Private Net
I followed "https://www.reddit.com/r/ethstaker/comments/jrkbe2/my_checklist_to_create_and_verify_accounts_and/" to run the validator in my private devnet using staking-deposit-cli and ethdo. ...
- 1
0
votes
2
answers
323
views
How to get raw transaction from v, r, s signature
My question is what would convert transaction fields r, s, v to rawTransaction. Can I see a transaction in the mempool and get its signature and raw?
here is an example vrs:
raw = ...
- 33
0
votes
1
answer
100
views
web3py Force send eth transaction at the same block without conformation or any errors
My question is how to force send a transaction via web3 or any other way without paying attention to errors. I know that I will pay for the commission if I am not successful and that will suit me. I'm ...
- 33
0
votes
0
answers
58
views
WARN [01-03|14:06:54.902] Block sealing failed err="unauthorized signer"
{
"config": {
"chainId": 12345,
"homesteadBlock": 0,
"eip150Block": 0,
"eip155Block": 0,
"eip158Block": 0,
"...
- 1
0
votes
0
answers
54
views
Geth private POA network behaving strangely
The Setup
I have setup a private POA network using geth (v1.10.14).
My network configurations are as following;
BlockTime: 1sec
Consensus: Clique
Number of Signers: 3
Number of Miners: 3
I have ...
- 141
0
votes
1
answer
308
views
Geth transactions not broadcast and stuck in pending state
Setup three Geth private network nodes(Clique) via docker container. They are deployed on three different VMs. Among 3 nodes, there is a miner node to mine the block, a RPC node to accept RPC request, ...
1
vote
0
answers
51
views
How to check if a certain hard fork is enabled in your network?
We are running a private PoW (Proof of Work) network on geth
I would like to know, how can i determine if a certain hard fork is enabled on my network ?
For instance, how will i check if the London ...
- 300
0
votes
1
answer
67
views
can eth_call() make this?
I have a contract and inside the contract there is a non-payable function that can call externally. this function do some analysis,and calls other payable function than can make real transaction using ...
- 69
1
vote
0
answers
541
views
How to run a PoS private network with geth & lighthouse?
So far for testing contracts, transactions and other dApp experiments
I had worked with pre-established testnets (Rinkeby, Goerli etc)
now i am tasked with deploying a private PoS network based on ...
- 300
0
votes
1
answer
57
views
depolying system contracts for new evm blockchain
i was trying to fork a dpos evm blockchain , how to deploy system contracts for dpos and slash and get the "code" data in genesis file as below ?
"alloc": {
"...
1
vote
0
answers
25
views
Good extensions for both Foundry & Hardhat
Hello i'am looking for good vscode extension for both foundry & hardhat. Thank you for your feedback !
- 73
1
vote
1
answer
53
views
how to revert transaction excuted by low level call
Hello ethereum community. I'm experimenting with low level calls and i want to revert the transaction made by low level call, if i didn't get the desired result. Is it possible?
(bool success, ) = ...
- 69
1
vote
1
answer
216
views
Why Golang was chosen to implement ethereum protocol?
I know there are many implementations of the Ethereum protocol, i.e. the first implementation in Python, or other implementations using C++, C#, and Java. As go-ethereum has gained lots of attention ...
- 494
0
votes
0
answers
83
views
approve spender to swap
i'm trying to swap using 1inch aggregator api and when i try to swap, it says
"Not enough allowance. Amount: 4600000000000000. Allowance: 0. Spender: 0x1111111254eeb25477b68fb85ed929f73a960582&...
- 69
0
votes
1
answer
33
views
Dose contracts must be deployed?
I see js programmers compile and call solidity contract without actually deploying it using hardhat and/or similar tools. Do they really can use the contract without deploying on the chain(like swap ...
- 69
1
vote
0
answers
308
views
GETH - BAD BLOCK : Error: invalid merkle root - Transactions and block stuck in pendings
I'm having problems with geth when I try to send transactions on my private blockchain being developed using Geth.
Practically a block is blocked in pending with around twenty transactions inside it ...
- 61
0
votes
1
answer
238
views
1Inch with flashloan provider
Is there a way to trade on 1Inch using the API and flash-loaned balance. If it is possible please give me some info. I was seeing the DOC to find how to integrate the flash-loan provider with 1Inch ...
- 69
1
vote
2
answers
405
views
UniswapV2's equivalent of getPair and other functions
i see uniswapv3 quoter or factory or router contracts doesn't have getPair, getReserve and other similar ABI functions like UniswapV2. does UniswapV3 have Equivalent for this functions? or did they ...
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