All Questions
694 questions
1
vote
0
answers
367
views
How to find transfer value in internal transaction by go ethereum?
How can I know how much ether is transfer to the receiver such as 0xa1ca8da0496cFA2f8579F58db30AE8aD8dbe6F0C?
Is its method id 0x2da91fa2 important?
I found the transaction in EtherScan, its hash is ...
- 11
0
votes
1
answer
85
views
Balances are different
In Geth, if I check my balance, it says one number.
At etherchain.org it says another number which is higher and more accurate and includes my transaction history.
I wanted to convert my balance to ...
- 8,076
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 ...
- 584
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, ...
- 38k
0
votes
1
answer
220
views
Remix: Trouble naming a function parameter?
pragma solidity ^0.4.0;
contract SignatureStatus
{
string documentIDhash;
struct Signature {
string documentID; //ID of the document
string studyID; // ID of the study the ...
CommunityBot
- 1
1
vote
1
answer
299
views
Unable to launch ethconsole with eth (cpp-ethereum) (Ubuntu 14.04)
I successfully launched a node. Everything works fine, even GPU mining. Except I'm unable to connect with ethconsole, as I get an error message :
$ethconsole
Connecting to node at /home/user/....
CommunityBot
- 1
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 ...
- 9,317
2
votes
1
answer
2k
views
Ubuntu 14.04 building from source problem with CMake & Cuda K80
So I'm trying to get the K80 to work on Ubuntu 14.04 with Cuda instead of the OpenCL buy using https://github.com/Genoil/cpp-ethereum miner. I have followed the instructions for Ubuntu 14.04 and Cuda, ...
CommunityBot
- 1
2
votes
1
answer
72
views
Purchase real Ether and add to base/default account
I created an Ethereum Consortium Leader instance on Microsoft Azure and they provided us with an Admin site and RPC endpoint:
http://someName.eastus.cloudapp.azure.com/
http://someName.eastus....
- 940
0
votes
1
answer
30
views
What should I do if I want to add a new method to the token that has been deployed to ethereum [duplicate]
I have issued a token in the ethereum,but now I need to add a new function to this token,Is there any good case to refer to?
- 3,920
1
vote
1
answer
1k
views
How to tell ethminer the specific account/address where Ether should be put in?
On the farming machine i have two accounts:
> geth account list
0x.......1
0x.......2
i've started ethminer with ethminer -G and the Ether lands in the first account. But i want it being ...
CommunityBot
- 1
0
votes
1
answer
122
views
Mist Wallet - I Messed Up
I sent almost 3 ETH from my Bitfinex account to a wallet on Mist. I had just downloaded Mist and was not familiar with the Addresses.... I accidentally sent this ETH to my Mist wallet on the Rinkeby ...
- 2,316
0
votes
3
answers
385
views
Can one receive (fractions of) ETH by simply running Mist?
This document about Ethereum briefly explains how decentralized Apps work:
To connect to the network, [people] installed a special program called Mist. (...) Every participating computer receives a ...
- 532
0
votes
1
answer
76
views
Can i transfer ETH from coinbase to my etherhwallet? [closed]
I have ETH in my coinbase acct, can I transfer them to my etherwallet acct? How can I do it?
- 8,076
0
votes
0
answers
314
views
eth.sendTransaction submits, but doesn't add to contract balance or trigger fallback function
I have tried sending 0.06 Ether to a contract as follows:
eth.sendTransaction({from: eth.accounts[0], to: "0x76E15697E36a66BF977D35de3C488F10B8014e65", value: web3.toWei(0.06, "ether")})
I've also ...
- 1,358
3
votes
1
answer
729
views
Ethereum client - minimum for sending transaction
Requirement:
Reliably send Ethereum transactions
Be connected to main nodes directly (speed)
Limitations:
Disk size (20-40 GB)
Given this, what is the recommended configuration to run an ...
- 33k
1
vote
2
answers
297
views
what is the ethereum live network?
By which I can connect the ethereum live network.
web3 = Web3(HTTPProvider('http://192.168.3.48:8045'))
Here I want to put a ethereum live network .
- 5,819
1
vote
0
answers
126
views
Coinbase time limit between transfers
Just wondering if there is a time limit that has to be reached between transfers from Coinbase to MyEtherWallet. Trying to send 0.1 ETH from Coinbase and I get to enter the destination address, the ...
- 11
0
votes
2
answers
1k
views
How would you install the Ethminer without sudo access?
I am trying to get Genoil's Ethminer installed on a machine without sudo access. The Github instructions require some packages to be installed.
sudo apt-get install git cmake libcryptopp-dev ...
- 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
0
votes
1
answer
137
views
Can manage node in my ethereum private network
I have created ethereum private network. there are two node got connected with in this network. both are mining. I have created small contract for transaction. All transaction is happening through my ...
- 2,998
1
vote
1
answer
637
views
Can Ethereum network exist without ETH currency?
Theoretically speaking, is ETH currency necessary in the future to run the Ethereum network with all its possibilities like Dapp and Smart Contracts?
I understand that you need to pay gas to miners, ...
- 16.9k
1
vote
1
answer
2k
views
Ethereum web3.eth bitcoin move equivalent?
Is there a Bitcoin "move" equivalent for Ethereum web3.eth ?
In Bitcoin:
move
<fromaccount> <toaccount> <amount> [minconf=1] [comment]
Move from one account in your wallet to ...
CommunityBot
- 1
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
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 ...
- 10k
3
votes
1
answer
3k
views
How Ethereum contracts transfer Ether without a blockchain confirmation
I would like to understand how Ethereum "messages" (originated from a smart contract) can transfer Ether to another account without a blockchain confirmation.
I have spent several hours ...
CommunityBot
- 1
1
vote
1
answer
2k
views
Where does ethminer mining reward go ? No option to provide wallet address
I did a count on this forum, and seems like most people there mine with ethminer. I've always been using claymore miner which has the -ewal option to provide my ether address, but there's no ...
- 6,680
2
votes
0
answers
80
views
Easiest way to get maximum transaction stack depth level
When a contract causes an addresses code on the EVM, a stack depth counter is kept. I need this stack information as I am producing a EVM execution visualiser.
This stack depth changes when a ...
- 331
-1
votes
1
answer
3k
views
Stolen ETH on Myetherwallet.com [closed]
I have problem with stolen 205 ETH from myetherwallet.com
Story , in short:
My first login and creating account/wallet, was on Jan 7 2017, when i deposited 205 eth.
ETHs was transferred from my ...
- 2,279
6
votes
1
answer
1k
views
Unable to send raw transaction
i'm working on to the morden testnet and using a nodejs application i wrote (using ethereumjs-util, ethereumjs-tx) i'm trying to push a raw tx on to the testnet.
I've tested GETH "eth....
- 18.8k
1
vote
1
answer
281
views
Uncles and its parameters
Is there possible that current block do not have uncles? As we know that Main block contain the contract information , What does uncles holds ?
- 38k
0
votes
1
answer
401
views
Cannot call function and send write-Transaction from geth-console
I have a contract which has this function:
function registerSensor(bytes32 name, bytes32 unit, bytes32 location) returns (bool success)
{
sensors[msg.sender].exists = true;
sensors[msg.sender]...
- 265
3
votes
1
answer
5k
views
Get history of transactions to specific account [duplicate]
I am using web3.js and geth to do my coding. I have an Ether Account (Not a Wallet Contract) that will be receiving funds from clients. The clients will be writing a number in the DATA field (that you ...
- 2,966
4
votes
1
answer
5k
views
What does the extraData field of a block represent?
I am trying to save some data into a block.
The extraData field has a constant value since block 1.
Also where does the data parameter of sendTransaction() function get stored?
CommunityBot
- 1
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; _;
}
...
- 846
1
vote
1
answer
343
views
Checking if input is a viable Ether value
QUESTION:
Does web3.js have a function that checks if a value (Number | String | BigNumber) is a valid Ether Value? If not, what might be an efficient way of doing so? Would I have to manually make a ...
- 8,784
8
votes
1
answer
2k
views
**Updated** Ethminer - no such file or Directory error after building cpp-ethereum on Ubuntu 14.04
I am new to all of this, although I do some programming on Windows and the web.
I have a small rig I want to use for mining ethereum. It is a dell inspiron 560.
It has a new Nvidia GE-Force 610 ...
- 8,618
1
vote
1
answer
594
views
Is 1080Ti good for mining ETH? [closed]
Hi guys I am thinking of buying some serious rig for mining. Since AMD GPUs are out of stocks, I am thinking to buy 1080Ti. The problem is that I can't find any comparison of hashrate for this card ...
- 2,279
3
votes
2
answers
2k
views
Eth address can't be used for mining
I'm trying to mine from my linux, but when I run the following command:
ethminer -F http://ethereumpool.co/?miner=4@ERroYPhmyUFMgPNRJEDNBlaBlaBla@Optional
I get error
JSON_PARSE_ERROR: The JSON-...
- 131
0
votes
1
answer
537
views
transactions with messages
I am coding an app where users can deposit ether into their accounts and do stuff with it (Im using web3.js and geth). However I would like to have everyone deposit into one single account, and then ...
- 3,512
3
votes
1
answer
566
views
What will happen when an ethereum node loss internet connection?
Will it reconnect to the ethereum network upon establishing internet connection again automatically and sync Data ?
Can we perform transaction and calls on the offline(no internet connection) ...
- 18.8k
5
votes
1
answer
3k
views
How to get signature parameters from a transaction?
In my application I have to manually verify certain transaction signatures on the ethereum blockchain. Atm I am running geth and parity nodes and query transaction information via the rpc interface ...
- 2,279
2
votes
1
answer
1k
views
How to get private key in cpp-ethereum?
I can only find instructions for geth, but cannot find anything about doing it using eth which is part of cpp-ethereum.
- 270
2
votes
2
answers
5k
views
Batch transactions for MetaMask using sendAsync
I have MetaMask working nicely - it's so cool! However, I have a (react) form that gathers in lots of information and creates 14 distinct calls to sendTransaction. Hence, I (currently) get 14 popup ...
- 2,626
0
votes
2
answers
476
views
Lost coins of the Ethereum?
Please help me to understand the situation:
I sent coins using an Ethereum transaction
0x0ae4b10100ddd1da0a22e6130903294dad57aa763a0a74580660904edc4512b2
Coins from the balance were written off ...
- 4,405
0
votes
1
answer
393
views
Mining on HD6950 - Getting DAG error
since I just upgraded my rig I got my old GPU laying around doing nothing, so I thought I might start to mine with it.
Its an XFX HD 6950 with 2GB of RAM.
Im running the following config:
Biostar ...
- 1
0
votes
1
answer
224
views
Sending parameters via the transaction Object
This works just fine:
myContractObject.doSomething(i, function(err, result) {
if (err) {
console.log(err)
} else {
doSomethingElse(result)
}
})
However, this doesn't:
...
- 614
1
vote
1
answer
207
views
The Solc Compiler on OSX - Hello World
I'm trying to do the hello world app seen here https://www.ethereum.org/greeter#compiling-your-contract.
It says I should be able to do eth.getCompilers()
The first you can get by using a ...
- 54
2
votes
1
answer
200
views
Problems calling sendTransaction from within an event handler
I'm having problems with Error: Invalid number of arguments to Solidity function. Basically, the problem comes when I call sendTransaction with an event handler. i.e. here's the code after hooking up ...
- 614