All Questions
6,660 questions
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18
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I got Scammed on an ETH Smart pool contract
I got Scammed on an ETH Smart pool contract, which is still running and showing my account balance $25740 withdrawable and $1866+$2 additionally showing me in the blockchain.
They starting a new pool ...
- 1
0
votes
1
answer
18
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Need Gas for Swapping or transfering ERC20 Tokens
I have 187,708,800,000,000,000 CR20 ERC20 tokens in my metamask. I need gas to be able to transfer them or swap them.
How many ETH do I need to do that
Can I transfer them or swap them for BTC or any ...
- 1
0
votes
0
answers
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
views
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 ...
0
votes
0
answers
30
views
Recovering eth in a blank address
I know this may be awkward but I am doing it as a last resort so I can have a closure and move on to other things.
Here's the situation.
I deployed a smart contract on chain A (arbitrum).
I mistakenly ...
1
vote
0
answers
42
views
Geth and lighthouse - connection problem
I have docker-compose.yml file:
services:
geth:
container_name: geth
volumes:
- /mnt/external/geth:/root/.ethereum
ports:
- 8551:8551
- ...
- 115
1
vote
1
answer
36
views
Outlook 🙋🏾♂️?
what is the over all outlook on(GETH)GORELI ETHEREUM? AS THERE ARE MANY VERIFIED CONTRACTS AND WALLETS JUST LEFT ON THE BLOCKCHAIN. I think it would be useful to bring some or all of those contracts ...
0
votes
0
answers
12
views
memory pool tx question
At present, I have encountered some problems. I listen to newPendingtransaction to obtain the pending transaction in the memory pool, listen to the method of adding liquidity, and send the transaction ...
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 ...
3
votes
2
answers
83
views
How to retrive a dynamic average value for gas-price
I'm wondering how can I get the correct current average gas price ( or the new parameters maxPriorityFeePerGas and maxFeePerGas ) to push to my web3 wallet in order to have my transaction mined?
I ...
- 176
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
1
answer
59
views
how can we decode transaction data using rust?
As we all know, we can decode transaction data when a known method is called like this.
[...]
fn main() {
let input = "...
- 168
1
vote
0
answers
131
views
Geth: Number of finalized block is missing
I recently had an unexpected power outage and when I try to launch my geth + prysm clients, they seem to have lost track of the blocks. I'm about a day behind on the eth.blockNumber. I get the ...
- 11
0
votes
0
answers
20
views
Private POA geth network fails to start after a sudden shutdown of all nodes
I have a private POA Geth network consisting of three nodes. Due to power issue, all the nodes shut down simultaneously.
After the restart of nodes I am getting this error on all three nodes when i ...
- 141
0
votes
0
answers
9
views
Safe.Global with own Node?
quick question.
Is it possible to use my own node for Safe.Global?
If so,
how exactly does that work?
Thank you and best regards
- 1
0
votes
1
answer
20
views
How to speed up Ethereum etl blockhain export time?
I am using python module ethereum-etl to parse all specific token transfers from start to end block. As a node I'm running a local snap node with all the receipts being saved parameter (--...
- 13
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.
- 1
0
votes
0
answers
11
views
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
1
answer
22
views
Updating geth on Ubuntu fails
I had some issues with geth and while researching it it was suggested to update get.
Before the update I had
$ geth version
Geth
Version: 1.9.6-unstable
Architecture: amd64
Protocol Versions: [63]
...
- 167
0
votes
0
answers
18
views
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,...
1
vote
0
answers
91
views
If all nodes of a private Ethereum network built with Geth+Prysm go down, how to restore the network?
I plan to use Geth+Prysm to build an Ethereum private blockchain as L1, and use Optimism as L2 to learn and understand Ethereum Rollup.
There is a tricky problem with the L1 network.
As long as all ...
- 11
1
vote
1
answer
26
views
Why some transaction need tracing to be possible to saw them?
Native ETH transfers, unlike ERC20 or wrapped ETH (WETH) transactions, often need specialized tracing methods to be fully visible in transaction. This raises the question: why does tracing become ...
- 73
0
votes
1
answer
21
views
After running nodes with all configs as per the docs, I cannot get ETH Balance in my local BESU Blockchain network
I am developing a private Besu network with QBFT Consensus mechanism. I am following the docs exactly like here
After running all 4 nodes when I import the wallet from QBFT_Config_File.js in my ...
0
votes
1
answer
18
views
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 ...
0
votes
0
answers
36
views
Etheruem Account Generation, pbkdf2
use crypto::hmac::Hmac;
use crypto::mac::Mac;
use crypto::pbkdf2::pbkdf2;
use crypto::sha2::Sha512;
// crypto is an external crate, "rust-crypto"
pub fn pbkdf2_key_stretching(mnemonic_code: ...
- 101
1
vote
0
answers
30
views
How can we employ libp2p to establish a secure private network that is impervious to unauthorized connections?
backgroung
Currently, I am looking to utilize Helia to construct a private IPFS network. The critical issue at hand is "Ensuring that this private network remains inaccessible to external nodes.&...
- 11
0
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0
answers
32
views
there is almost no peer to connect , how to solve it? thanks a bunch
./geth --holesky --http --http.api=eth,net,web3,txpool --http.corsdomain '*' --port 30303 --txpool.globalslots=250000 --txpool.globalqueue=50000 console
but the result is :
WARN [09-06|18:15:22....
- 1,003
0
votes
1
answer
103
views
How can I retrieve all Ethereum transfers from a transaction?
I'm trying to extract all Ethereum transfers from a given transaction. Some transactions send transfers to block builders, while others may involve different recipients or actions. What is the best ...
- 73
0
votes
0
answers
31
views
Geth for Base Chain Node is stuck arround 100 blocks behind current height. How can i fix this?
I am syncing a base chain node as the layer 2 and I have snap node of ethereum mainnet on the same server. Ethereum main node is working fine but the syncing of base chain node is always keep 100 ...
0
votes
0
answers
19
views
Ethereum Geth Node for writing transactions
We are running a full Ethereum Geth node, but the resources and support effort is too great.
All we need to do is create ETH addresses and send transaction, not read or scan the blockchain.
Can anyone ...
0
votes
0
answers
31
views
The most popular ways to scam on crypto EVM
I want to describe the methodologies in my bachelor's thesis, but I don't know what kind of crypto scams there are and which ones are used most effectively
Thanks
0
votes
0
answers
17
views
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
1
vote
0
answers
24
views
How can I persist the chaindata of my ethereum private network?
I have build a ehtereum private network with docker and it could run normaly. But if I try to persist the chaindata by using volumes, the node will connect mainnet, instead of my private network.
Here ...
- 11
3
votes
0
answers
118
views
debug_traceTransaction on a full node not working
I'm running a full but not archive node using geth. I'm trying to get trace for a transaction using debug.traceTransaction('0x4883a2cd5a260723ae65b88787d153864938e0cf0b811bc0597a80e3e820777a'); but it ...
- 31
0
votes
1
answer
456
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
32
views
How works auto crypto assets stolen web pages
In my dissertation, I learned about the tactics of Ethereum scammers and I wanted to know how crypto sites automatically detect "cryptopank", "bored monkey", coins, etc., and ...
1
vote
1
answer
35
views
Can Ethereum full node be used to get all token transfers from the past?
I need to get all ERC-20 tokens transfers from 2020 till current last block. I am considering using ethereum etl python module for this. Thus I need to start a local Ethereum node. I have hardware ...
- 13
1
vote
1
answer
70
views
Low-level call execution reverted
I have a Solidity contract deployed here.
When I attempt to calculate the gas for the transaction I get an execution reverted error.
According to Etherscan Gas Oracle API called in another routine the ...
- 167
1
vote
0
answers
39
views
Why don't consensus clients have an RPC method to query the total supply of ETH (all ETH minted)?
I understand that the total supply of ETH can't be hardcoded into consensus clients because this value needs to be derived from the blockchain state to prevent tampering. To get the total supply, we ...
- 41
0
votes
0
answers
35
views
Low-level call error: insufficient funds for gas * price + value $8099.91
Any ideas about this? I am attempting to make a arbitrage swap using the following contract The error is:
Low-level call error: err: insufficient funds for gas * price + value: address 0x have ...
- 167
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
35
views
Is tracing supported in the path schema?
When i'm trying to trace an existing transaction with geth using path schema i get:
> tracer('0xc1668976ece94d5fa97881cb538be5546b13052da5bff476863d8361da3e308f');
Error: historical state not ...
- 101
0
votes
1
answer
46
views
Geth setup for Tracing any hisorical transaction
I start geth in the following way:
geth --history.state=0 --history.transactions=0 --gcmode archive --syncmode=full --cache=4096 --state.scheme=hash --mainnet --authrpc.addr localhost --authrpc.port ...
- 101
0
votes
1
answer
31
views
EVMError: Revert for Auction.sol
Building an Auction for ERC20 Tokens.
Scripts are compiling.
2/3 tests pass.
[FAIL. Reason: EvmError: Revert] for 1/3.
It may be an issue with the OpenZeppelin import, it may be out of date, wrong ...
0
votes
0
answers
14
views
is there only one node table in ethereum's discovery protocol?
From what I know about the geth source code, there is only one node table in the discover protocol--discv4. That table is located in https://github.com/ethereum/go-ethereum/blob/master/p2p/discover/...
- 1
0
votes
1
answer
32
views
How datatypes work in solidity?
As we know the EVM provides a key/value store which is a 32-byte key pointing to a 32-byte value. We can imagine how integers or even strings can be stored there, but the main question is how solidity ...
0
votes
0
answers
16
views
Gas estimation failed with unknown To address
I'm getting gas estimation errors leading to my transactions not going through. Here is the error message:
Error: processing response error (body="{\"jsonrpc\":\"2.0\",\"...
- 1
0
votes
0
answers
13
views
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 ...
