All Questions
519 questions
59
votes
4
answers
192k
views
For pool mining, what exactly is a share?
Can someone please explain exactly what a share is in the context of pool mining? I have a superficial understanding of testing random nonces to find a hash under the current difficulty. I also ...
- 591
16
votes
3
answers
30k
views
Solo Vs Pool Mining With A GPU
Currently I'm using 1 r9 380 card with 20 MH. I've only been mining for 3 days straight (72hours). I used the Mining Calculators from Etherscan and Cryptocompare. While these sites calculate it will ...
- 245
15
votes
1
answer
8k
views
How do I create my own mining-pool?
I have about 900+ Mh worth of power and I'm thinking of creating my own pool and putting all my miners in the pool instead of pooling with others. However I've found no instruction on how to do this. ...
- 1,943
14
votes
1
answer
15k
views
Join mining pool with Geth
I followed this guide to set up aws to mine ethereum with an instance that has GPUs. After set up, I let the miner go for a day without any pay in the smallest denomination of Ethereum. I researched ...
- 141
11
votes
4
answers
18k
views
ethminer Failed to submit hashrate
I keep getting an error: ethminer Failed to submit hashrate :(
I am very new to this whole mining thing, and just want to learn more.
I am using:
Geth
Version: 1.5.0-unstable
ethminer version 1.2.7
...
- 133
11
votes
1
answer
4k
views
Sign raw transaction offline with C++ on arduino
I'm exploring the IoT side of the EVM. I've programmed Arduinos and ESP8266s to interact with a Geth JSON RPC. I'm trying to be minimalistic and avoid NodeJS on the Geth JSON server side. Currently ...
- 441
10
votes
3
answers
10k
views
Mining solution found
I've just started mining with a gtx 1070, and following a guide on the web I've set everything up, using a pool (nanopool).
Watching the result of the mining program I noticed alread 3 times that I ...
- 125
9
votes
3
answers
7k
views
Convert an eth key to a geth key
I need to convert my eth key to a geth key.
eth put the key in %appdata%\roaming\Web3\keys, and I see it as a .json file. If I move that to the %appdata%\roaming\Ethereum\keystore directory, geth ...
- 93
9
votes
3
answers
46k
views
What's a "worker", or a "worker name"
Using a "worker" or "worker name" is often an option when you do pool mining. It is often exemplified by "rig1". But how do you create one, and what is its use?
- 321
8
votes
3
answers
6k
views
CPU mining JSON_PARSE_ERROR
I just wanted to mine ETH with my CPU. I use Windows 7 64 Bit with ethminer.
I started the cpu miner with a batch
ethminer -t 6 -C -F http://ethereumpool.co/?miner=5@0x17C0Bea7c44*******...
- 161
8
votes
2
answers
2k
views
Why do we have Ethereum mining pools?
When Ethereum wasn't even launched, I remember Vitalik saying that the Ethereum mining process was designed in such a way to prevent the formation of mining pools. (I vaguely remember the reasoning ...
- 2,620
8
votes
2
answers
475
views
How can I maximize the probability that my ETH nodes stay synchronized with mainnet for as long as possible?
I run three full ETH nodes, one on my local, home network, and two in the cloud. All three make use of geth.
My "local" node, is always in sync with mainnet, i.e. always showing the same last block ...
- 303
8
votes
3
answers
5k
views
Mining ETH on HD 6950 DAG allocation problem
I have 2 HD6950's which I wanted to use for ETH mining - but I have the well known DAG allocation problem.
I can't find a solution for this problem - that's why I'm asking here. And please don't tell ...
- 161
8
votes
2
answers
19k
views
What are some good mining pools? [closed]
I'd like to try a bit of mining, but my GPU is way too weak to mine on my own. I've tried finding reviews on existing mining pools for ether but they're very sparse. Could you recommend a pool?
- 1,720
8
votes
1
answer
586
views
Ethereum mining pool centralization
There are a number of well known undesirable effects of mining pool centralization, primarily:
increased risk of collusion
a small set of pools effectively gain veto power on the evolution of the ...
- 5,400
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 ...
- 81
7
votes
1
answer
10k
views
ETH sent to ETC address
I accidentally sent ALL my ETH on ETC address :(
6 months of mining gone :(
I sent from one exchange to fresh address on another exchange, but on ETC ...
Is there ANY way to track those coins?
I'm ...
7
votes
1
answer
631
views
Is it possible to tell whether an address is mist, mew or parity?
How can I tell if an address is from Mist, MyEthereumWallet or Parity? Is there anyway to know? Are they encoded differently?
- 297
7
votes
3
answers
3k
views
Is there any c++ library for signing transactions?
I am working on light wallet in c++, and I am looking for a c++ library for signing transactions. I mean something where i will pass transaction and private key and it will return signed transaction ...
- 101
7
votes
1
answer
240
views
Would a fork require miners to update software it they mine on a pool?
Would a miner have to update their mining software, such as ethminer, to go on a forked version of the chain? Or is it up to the pool to decide which chain to mine?
Also, if a miner is mining on a ...
- 6,813
7
votes
1
answer
4k
views
AlethOne : GPU can't allocate the DAG in a single chunk
I'm trying to do some pool mining using AlethOne, but get the following error:
Allocating/mapping single buffer failed with: "clEnqueueWriteBuffer(-4). GPU can't allocate the DAG in a single chunk. ...
- 321
7
votes
1
answer
3k
views
Is there a downloadable Ethereum bootstrap?
I am trying to synchronize a full node, and this is going very slowly, the progress alternates between bursts of high CPU usage (which is fine, it is heavy but importing), and long times with nothing ...
- 171
6
votes
2
answers
850
views
Is it possible to prevent nodes from mining on a private blockchain?
Is it possible to prevent mining on a closed block chain, in a sense that only a set of addresses are allowed to perform transactions but are not allowed to mine?
Mining should always be done by a ...
- 5,284
6
votes
2
answers
10k
views
How to install eth on debian? (symbol lookup error)
I installed from the ubuntu ppa and got this error.
➜ ~ eth
eth: symbol lookup error: eth: undefined symbol: _ZN3dev3eth14EthashGPUMiner14s_numInstancesE
What can I do / check?
I'm on debian ...
- 4,640
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
6
votes
1
answer
934
views
Ethereum Merkle Patricia Trie and Hashes
In Ethereum, there's a hash of all of the 3 tries in each block.
Out of curiosity.
The docs state that the functionality is supposed to just provide a mapping between 160bit keys and values. I find ...
- 323
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....
- 219
6
votes
2
answers
2k
views
Why did the DAG file change in block 1080000?
I'm mining to dwarfpool, and all of sudden am getting this message on the account: "DAG file changed in block 1080000"
Does this mean that my DAG is out of sync and if yes, how do I resync it, tried ...
- 475
6
votes
1
answer
11k
views
Mining for 5 days at an avg of 19 Mh/s but not a single cent, is this normal?
Okay so i've been using ETHMiner and this cmd file to start it, and I've been mining for about 60-80 hours with and avg of 19 Mh/s and I havent recieved a single cent to my Jaxx wallet, is this normal?...
6
votes
1
answer
330
views
How to implement Ethereum protocol to some tinyOS, e.g, contiki?
I find out Ethereum has many implements to many OS with many different languages.
But i don't know if I want to use ethereum as protocol on contiki OS or cooja simulation, so what is the best choice ...
- 455
6
votes
3
answers
2k
views
How to exchange ETH to DAI with web3 and node.js
I looking for solution how to convert eth to dai with web3 api. something like
https://kyber.network/swap/eth_knc
(I can send eth to specyfic contract adress and I receive back DAI to the same ...
- 61
5
votes
2
answers
8k
views
How do you create a new contract instance with an address *and* arguments?
There is the standard way of creating contract instances with the new keyword where you pass arguments like:
MyContract mine = new MyContract(arg1, arg2);
Then there is another way, like in this ...
- 153
5
votes
3
answers
6k
views
How store ETH in a smart contract
The question it's How store Ether in a smart contract.
In first step, I try transfer the transaction value to the smartcontract address doing something y something like that:
function storeETH() ...
5
votes
2
answers
7k
views
How to implement role-based access control to user's private data?
We have this application scenario and try to see if Ethereum, or blockchain in general, is a good solution for this.
The basic idea is the user controls a small amount of private sensitive data (e.g....
- 177
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
5
votes
2
answers
1k
views
Nested Contracts in Solidity?
As per the Solidity 0.4.16 documentation, contracts are similar to the concept of a Class of an object oriented language. That being said, can we create a Contract within a contract.
IF yes, then ...
5
votes
3
answers
4k
views
What are the advatages of Stratum protocol over websocket RPC?
Some of the largest Ethereum pools have a support for Stratum mining protocol, they claim that there is about 20% advantage over normal type of protocol. My question is what are those advantages? I ...
- 681
5
votes
1
answer
568
views
What is Miner Extracted Value (MEV)?
I came across MEV in this reddit posted by Flexpool (i think) because Flexpool was claiming MEV was a big improvement and good for miners.
The close I could get to an explanation is that there are ...
- 151
5
votes
1
answer
2k
views
Create a new contract by JSON-RPC of cpp-ethereum
I want to create a new contract by JSON-RPC and cpp-ethereum.
I find out eth_sendTransaction can help me to do this.
And let do it, I need to set "to" parameter like that:
to: DATA, 20 Bytes - (...
- 173
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
5
votes
2
answers
555
views
Eth Console Won't Start: Invalid Argument Console
Can't Use "Eth Console" Command upon Installing Eth with Spacebrew
Hi everyone, I'm learning how to create my own d'apps on the Ethereum blockchain as part of a Master's thesis research process. So ...
- 51
5
votes
1
answer
18k
views
Can you mine with 2GB cards or less? Thinking about the DAG issues
So I'm really new to mining and I tried setting up a Claymore miner on a rig with a 2GB card, it gave me a error saying something that the DAG wasnt enough and then I looked it up on google and I only ...
5
votes
0
answers
377
views
Trying to send ETH from Mist Wallet to Poloniex, received ETC instead [closed]
I want to send both my ETC and ETH to Poloniex.
I have a basic understanding of the DAO fork and know nothing about programming. I googled something about a replay attack and using a split contract. ...
4
votes
4
answers
3k
views
Pool mining: How is DAG generation possible without knowing the block number?
This is little bit similar to this: Do i need to be synchronized to blockchain when creating DAG for mining on pool? and this https://github.com/ethereum/go-ethereum/issues/2333
Essentially pool ...
- 681
4
votes
1
answer
2k
views
Is it possible to define a smart contract as the address when mining on a pool like ethermine?
I would like to create a contract that shares mining rewards between multiple accounts.
Can I set this contract address as the target address when running eth-proxy ?
- 6,813
4
votes
3
answers
2k
views
Is there a way to transfer my ETH from a cold storage to a hot storage without compromising it?
At first I wanted to use myetherwallet.com but now I am afraid the code may be hacked / corrupted some day.
The cold storage solution seems safer to store ETH in the long run.
While I understand how ...
- 183
4
votes
1
answer
304
views
How to bootstrap AlethZero on Morden testnet?
I am trying to use the testnet using AlethZero. I use this command alethzero --morden as suggested in the wiki. It does not seem to connect to any peer and hence does not sync the blocks. I also tried ...
- 33k
4
votes
1
answer
649
views
Can geth and eth share the same accounts and blockchain?
It appears when I have multiple ethereum clients installed, that they all have their own data, accounts and even their own copy of the blockchain.
Is it possible to share accounts and the blockchain ...
- 33k
4
votes
1
answer
7k
views
I do not get any ether when mining
I'm mining on nanopool with Claymore's miner.
This is the batch file:
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx ...
4
votes
1
answer
538
views
Does Eth have an equivalent to Geth's --fast flag?
In a previous question, I asked how Geth's --fast flag worked. I'm now moving over to using Eth, so my question is: is there an equivalent option to allow Eth to quickly sync the block data? If so, ...
- 38k