All Questions
73 questions
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,...
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
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
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
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
2
votes
0
answers
47
views
geth full node is too slwo.Only about 50 blocks can be synchronized per minute
geth full node is too slwo.Only about 50 blocks can be synchronized per minute
However I use snap mode to sync very quickly.
Unfortunately what I need receipts for all transactions.
this is my server:
...
- 21
0
votes
0
answers
112
views
How it works? 4 transactions in 1 block
This address withdraws tokens from different accounts as shown above.
His steps:
He sends BNB to the address where there are tokens to pay the token withdrawal fee. Gas price 60 gwei
Withdraws ...
1
vote
0
answers
159
views
geth error exceeds block gas limit"
im running a local geth node to increase transactions speeds for nfts minting however during a nft mint that had a contract set Gas limit to 250k there was gas wars and eth gwei went up to 500 gwei ...
- 11
1
vote
1
answer
893
views
Is there Blocks Pruning in ethereum clients specialy geth? (and other questions)
Is there Blocks pruning in ethereum clients such as geth and how does that work?
by pruning I meant, does the blocks information whether stored in DB like in cpp-ethereum are deleted if the ...
- 173
1
vote
1
answer
322
views
Not able to use --testnet flag on geth windows
I have a problem where if put
geth --testnet removedb
it says
flag provided but not defined: -testnet
Im on windows 10 x64. Thanks in advance!
- 21
2
votes
0
answers
164
views
Running a SPV wallet on Arduino/ESP32?
I want my ESP32 to make transactions and check for the details of blockchain using a secure method. Actually, I want to use make calls to the blockchain instead of relying on a single node. In my ...
- 683
1
vote
1
answer
529
views
eth_getLogs was only return erc20 tokens
i have used below command to get every logs on the special blocks but its only return erc20 token logs and ethereum transactions was not listed.
my geth command:
curl --data '{"method":"eth_getLogs",...
- 145
0
votes
0
answers
55
views
Write Secret Shared Data onto Ethereum
What would be an approach to do the following:
1) Secret Share data provided from a file
2) Publish the secret shared data onto an Ethereum instance (aleth/geth)
3) Be able to retrieve and ...
1
vote
1
answer
237
views
Ethereum receipts blockid and hashes
Preface: The question relates to the relationship between the content of the Ethereum's receipts and the hash of the block header.
Problem description: I wonder, in Ethereum, blockid is based on the ...
- 323
0
votes
0
answers
208
views
How to upgrade Solidity version in geth or ethereum private blockchain
I have built my private blockchain of ethereum and i'm curious to know that how can i upgrade to new version of solidity within geth so that we also can develop smart contract on newer version as ...
- 51
0
votes
1
answer
79
views
Where Can Find the Ethereum source code on Proof Of Stake
Looking to find the implementation of Ethereum Proof of Stake Source Code on GitHub.
- 21
0
votes
1
answer
58
views
is there any problem if i put GETH/PARITY and webserver in one server?
my website need to use something about ETH,so i have to setup a geth/parity rpc server. is there any problem if i set the geth/parity rpc in my webserver?
- 5
0
votes
2
answers
983
views
Connecting to Ethereum Clients from C application
web3.js is a great library to communicate with client node. I have tried using socket programming from C application to first reach nodejs web app in order to make use of web3.js services to reach a ...
- 592
1
vote
0
answers
89
views
can erc20 token transaction work on Fast Sync-ed node ? OR it need Full node to transact any token?
I need help regarding couple doubts.
Which sync method is good for me. My client is asking me to make an Exchange website. Also ERC20 tokens will get transacted in this exchange.
Do I need a full ...
1
vote
0
answers
316
views
How do I get a merkle proof (stateHash) from the merkle patricia trie?
So I understand how a patricia trie works, it's a trie using 0 to f as root nodes, and it also removes empty nodes to make leafs and extensions.
What I don't get is how the stateRoot hash is made.
...
- 227
1
vote
0
answers
161
views
Setting up a server to run a geth node - what hardware would you recommend?
I am planning to run a geth node 24/7 on a server, what hardware specs would you recommend for this?
I'd like to download the chain pretty fast and want the block download to be consistently quick.
...
- 11
5
votes
4
answers
807
views
Why do you want to use different implementations of EVM?
Currently there are many implementations of EVM (Java, C++, Python, Go, etc).
For example: I will be using Solidity to write DApp on the top of EVM-Java and EVM-Python, why would I want to use EVM-...
- 461
1
vote
0
answers
128
views
Library for create ethereum wallet
I want to create an ethereum wallet that is erc20 compatible on my client side.
It should allow user to enter his own password and generate private key, recovery phrases and utc file.
I try to ...
- 141
2
votes
3
answers
852
views
Hi, is Ethereum MIt licensed?
is Ethereum MIt licensed? Can we use it for business purpose?
1
vote
1
answer
235
views
Everyone is asking Now is Ethereum still ASIC Resistant? [duplicate]
According to Bitmain - plus other 3 company in china, that they will lunch Asic Miner Machine for Ethereum this 2nd Quarter 2018.
My question is there any way that ethereum can prevent this to happen?...
- 11
1
vote
2
answers
102
views
Is it possible to fork ethereum so that only specified account(s) can deploy new contract?
Blockchains supporting smart contract are sometimes compared with smartphones in the sense that it is an infrastructure opened to host an indefinite number of Apps, any participant can create and ...
- 73
-2
votes
1
answer
839
views
How to sent ETH from Parity command line
I was wondering if it is possible to send ETH using the parity command line, without opening the browser and going to the address 127.0.0.1:8080. I want to host my Parity instance on a headless ...
- 49
1
vote
1
answer
352
views
How to invoke multiple oracaliszed queries from a single contract
I want to invoke 2 different orcalized queries from the same contract. I saw a few posts but none of the answer works. Is there any way we can do that? Here is my contract. I was expecting this ...
- 113
1
vote
1
answer
702
views
I sent ETH to my receiving contract address [closed]
I sent ETH to one of my receiving address which is contract address. But this receiving contract address was my personal trading wallet address. But, no transaction I'd has been received. When will I ...
6
votes
2
answers
3k
views
Ethereum Merkle Patricia Trie (Extension node)
I do not have time to look through the source code right now. My questions is:
In Ethereum, when is the decision to replace part of a given path with an Extension-node made?
I suppose the sole idea ...
- 323
0
votes
2
answers
945
views
geth attach issue between mac and windows
I am running geth on windows machine and try for geth attach in mac. I give
below error:
Fatal: Failed to start the JavaScript console: api modules: Post http://192.168.0.107:8545: context deadline ...
2
votes
1
answer
782
views
web3 contract TypeError: 'apply' is not a function
I'm Trying to call the apply function on the contract ABI but I'm getting:
TypeError: 'apply' is not a function
at :1:1
> myContract
{
abi: [{
constant: false,
inputs: [{...}],
...
5
votes
1
answer
13k
views
The ERC-20 Token Transfer might have Failed (ErrCode: unable to locate corresponding Transfer event log), check with sender
EtherScan.io is showing error: The ERC-20 Token Transfer might have Failed (ErrCode: unable to locate corresponding Transfer event log), check with sender.
Transactions are successful but users are ...
- 51
0
votes
1
answer
127
views
Will I receive my Ether? Transferred to my wallet while the Ethereum wallet was downloading
So I was super excited to get the ethereum wallet downloaded, I followed all the steps. As I set it up, after the part where you set your password it prompted me to fund my wallet with ether. I then ...
- 1
1
vote
0
answers
246
views
Ethminer install error
I want to start mining in windows server 2008
( How to Mine Ether and use Ethereum on Windows?)
everything is going perfectly except ethminer(step 9) says JSON-RPC problem. Probably couldn't connect. ...
- 123
1
vote
1
answer
919
views
Is there a difference between geth and the cpp-ethereum CLI?
I am a cpp dev and i want to have a look at the ethereum code so i chose the cpp-ethereum repo.
Do geth and cpp-ethereum have the same CLI commands? I wasn`t able to find a list of the commands for ...
- 353
2
votes
1
answer
220
views
Does Ethereum block stores state, transactions and receipts external to the block?
Does Ethereum block stores state, transactions and receipts external to the block (like in some external storage)? and the block just contains the hashes of State_root hash, Transaction_root hash, ...
- 133
2
votes
1
answer
710
views
Any export keyword in Solidity?
As per documentation we have import features, but do we have any export to file feature in Solidity that I can use inside my smart contract.
Got a similar thread at How to export transactions into a ...
2
votes
2
answers
235
views
Is it possible to be part of the Ethereum network only as a client, without storing the whole blockchain inside your app?
I would like to create a desktop app which can send / receive transactions on the Ethereum network. But that would be only one feature of the app. It would have several other features. An example ...
- 21
0
votes
1
answer
656
views
Geth says it's synced, but is about 50 blocks behind everyone else
So I run a small eth mining pool and the eth node says it's synced, but when I compare the block to the ones on other pools we are about 50-100 blocks behind. When I check in geth it says it's fully ...
- 1
3
votes
0
answers
501
views
SSL Support for Communication Between Geth Nodes
We are using private Ethereum network for a multi entity use-case. The problem is that all these entities geth nodes sits behind a firewall which only allows TLS traffic.
The node that's broadcasting ...
- 1,259
2
votes
0
answers
247
views
Why is Vitalik Buterin considered the brains of Ethereum even though his Github contributions to the project are negligible? [closed]
As of now Vitalik is the #34 contributor to the main project: https://github.com/ethereum/cpp-ethereum/graphs/contributors
Even in the first year, of commits he is still ranked 23rd: https://github....
- 121
3
votes
2
answers
1k
views
How many Consensus algorithm does ethereum involve?
I know POW is the Consensus algorithm of ethereum now, and it will be changed to POS. But does ethereum has other Consensus algorithm besides POW and POS?
I heard from a man there are other Consensus ...
- 1,003
2
votes
1
answer
1k
views
Stats API Temporarily Down
I deployed ethereum pool, i can connect and send valid share to pool but always the page show Stats API Temporarily Down
my config.json
{
"threads": 2,
"coin": "eth",
"name":...
- 21
0
votes
1
answer
110
views
Getting errors when sending ETH to a contract on testnet
I am trying to send ETH to a contract I have just created and I am getting errors
pragma solidity ^0.4.6;
contract Owned {
modifier only_owner {
if (msg.sender != owner) return; _;
}
...
- 103
4
votes
1
answer
1k
views
Will miners still make Ether after POS?
So, I am new to the entire crypto currency idea although, I am a software developer and I have been planning for years to create a CRM that is fully autonomous and exceptionally secure. Ether's code ...
- 41
2
votes
1
answer
323
views
How to modify the gasLimit of the private block chain on the console
as the title,How to modify the "gasLimit" of the private block chain on the console?
- 21
1
vote
1
answer
1k
views
How can one apply and work for the Ethereum Foundation?
I would like to know how one can apply and work for the Ethereum Foundation as a software developer. I tried to look online but could not find the answer.
- 203
2
votes
1
answer
1k
views
How to set eth (not geth) data directory?
I could find solutions for geth to set the data directory
geth --datadir = ./chaindata
What is the eth alternative for the same?
Does it make a difference in using geth or eth client?
and how to ...
- 121
1
vote
0
answers
122
views
Read Write restrictions in private blockchain [duplicate]
How to create admin node in private blockchain?
How to give read write permission in private blockchain?
- 51