Questions tagged [cpp-ethereum]

The Ethereum C++ client.

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2
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1answer
108 views

How does block beneficiary work? What's the point?

From Gavin Wood's yellow paper: In general, Ether used to purchase gas that is not refunded is delivered to the beneficiary address, the address of an account typically under the control of ...
1
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1answer
5k views

Brand new miner on Windows 10, with 1060 GTX 6gb

I am a brand new miner, pretty much know nothing about programming (some C++ classes in school). Was using cryptocompare.com guide to get going, but ethminer.exe keeps crashing at the grabbing DAG ...
2
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3answers
1k views

Why write an EVM in bytecode, and not in something like Python or Go?

I know that Ethereum runs in virtual byte code and there's a javascript-like wrapper language called Solidity. This question is about why the developers chose this approach? What makes it infeasible ...
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1answer
2k views

Since Ethereum is ASIC resistant, what happens when the GPU mining return is less than electricity bill?

If mining return is less than electricity bill, no miners would like to provide their hash power to support the system, what happens to the system then?
1
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1answer
299 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?
7
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1answer
570 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?
2
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1answer
1k 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, ...
1
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1answer
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.
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0answers
252 views

Possibly corrupted DAG file

I've started mining on Ubuntu 16.04 using AMD-GPU PRO driver and this miner: https://github.com/ethereum/cpp-ethereum/ Video card is a RX480 with 8GB stock. I'm getting a lot of bad shares, like 10%...
1
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1answer
308 views

Can we mine BTC on Ethereum Platform?

I am wondering if it is possible to write Solidity code to Mine Bitcoins on Ethereum's distributed computing platform?
2
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1answer
826 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 ...
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0answers
105 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?
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0answers
103 views

What is a sealer and what is the difference between Ethhash, NoProof and BasicAuthority sealers?

Default sealer in cpp-ethereum is NoProof: https://github.com/ethereum/cpp-ethereum/blob/43bae2c78e2a968ef4eb37bec2da4d9b85fa2392/libethcore/ChainOperationParams.h#L73 But I don't understand what is ...
2
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1answer
1k views

C++ library for Ethereum client documentation

I am looking for documentation for C++ Eth client. So it will be really helpful if you could share few useful links to understand how Eth client command works.
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0answers
4k views

When I try to mine ethereum I get JSON-RPC error

I am new at ethereum mining and I am trying to solo mine. I already installed geth and now I am trying to mine. When I go to ethereum software folder and type ethminer -G, it gives me the following ...
2
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0answers
399 views

Can't see GPU when starting with rc.local (Linux)

I'm mining ethereum on my Linux Mint mining rig with the claymore miner. I can manually launch my miner with the command line but if I try to start the miner with /etc/init.d/rc.local then I get the ...
3
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1answer
116 views

Convert Eth Key to Geth Key

I have some eth keys that I would like to convert to geth keys. There was a previous post about this, however the solution provided was to use ethkey, but this tool has now been deprecated. Any help ...
-1
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1answer
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 ...
1
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1answer
1k views

what arguments does the sendTransaction function take?

I have set up my private blockchain using geth and am using web3 to call different methods. I have successfully created new accounts from the web browser and can view all addresses and the balances. ...
3
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0answers
434 views

How can i confirm transaction in geth from other peer of blockchain?

I have a query , I have create a private blockchain in which one geth node1 is use for transaction taking and other one(node2) is for mining .They are peered with each other and perfectly ...
-1
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1answer
21 views

Money and ETH upside and downside against hard assets while in the developing stage [closed]

Ethereum: has or will Ethereum back up its software with a hard asset in the future? only if the unthinkable happens!
1
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1answer
235 views

How to unlock account in ethereum where Transaction are too higher? [duplicate]

While working on the ethereum , I come out with the issue of out of memory because of multiple transaction execution concurrently . The main reason was , i was unlocking account of that user every ...
3
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3answers
4k views

ethminer not picking up Radeon R9 RX 480

I hope someone can help. My system has 3 GPUs, one that sits on the motherboard and two RX 480s that I added for mining purposes. I've installed the latest AMD drivers (Version Crimson-16.7.1) to ...
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0answers
31 views

How to change the compiler the mix-ide uses?

I have build the mix-ide from source, is there a way to change the solidity compiler it uses? I have tried to simply replace the solidity folder in the webumbrella directory with a new version but ...
1
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1answer
277 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/....
4
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1answer
816 views

Is there a way to “clean up” the ethminer installation (ethminer after crashes)?

I'm NOT running Geth or any other wallet on the miners. I have dedicated systems for mining running Ubuntu 15.04, 64 bit desktop with ethminer compiled from cpp-ethereum. Motherboards/Processors range ...
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0answers
125 views

listen-ip is going for default

listen ip option in cpp-ethereum always takes default address 0.0.0.0 not the one we specify. I give the following command $./eth --upnp off --listen-ip 127.0.0.1 output is cpp-ethereum, a C++ ...
8
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1answer
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 ...
1
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1answer
145 views

cpp-ethereum make error with json files

To install cpp-ethereum, I followed the below steps given in the ethereum community forum: sudo apt-add-repository ppa:george-edison55/cmake-3.x sudo apt-get -y update sudo apt-get -y install ...
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0answers
1k views

cpp-ethereum cmake error with json and curl

I got the following error when I do cmake on cpp-ethereum. I have libjson-rpc-cpp, curl. Even then I am getting the following error: -- Found jsoncpp: /usr/lib/x86_64-linux-gnu/libjsoncpp.so -- ...
2
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0answers
261 views

Need help to run a function on contract but get Big Number error [duplicate]

var myContract = web3.eth.contract(abi) var myContractInstance = myContract.at(address) myContractInstance.func.call() Get Error: new BigNumber() not a base 16 number: EDIT: if anyone comes ...
2
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1answer
127 views

cpp-ethereum could not punch through NAT error

I have cloned the cpp-ethereum for Linux (Ubuntu) from git as follows: $ git clone https://github.com/ethereum/cpp-ethereum $ cd cpp-ethereum cpp-ethereum$ git checkout ...
3
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3answers
2k views

~/.ethereum takes a lot of disk space. What can I clean up without having to sync from scratch?

I am using cpp-eth on freebsd 10.3 with SSD and ~/.etherium takes about 41 Gb of disk space: ~/.ethereum # du -sh * 4.0K config.rlp 41G d4e56740 0b geth.ipc 4.0K keys....
5
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2answers
484 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 ...
4
votes
1answer
819 views

cpp-ethereum develop json error

I have cloned the cpp-ethereum in Linux (centOS) from git as follows as suggested in cpp-ethereum-develop cmake error git clone https://github.com/ethereum/cpp-ethereum cd cpp-ethereum git ...
3
votes
1answer
299 views

cpp-ethereum build error

I have cloned the cpp-ethereum in Linux (centOS) from git as follows as suggested in cpp-ethereum-develop cmake error git clone https://github.com/ethereum/cpp-ethereum cd cpp-ethereum git ...
3
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0answers
201 views

c++ ethereum could not open wallet

Created 3 accounts as follows: $ eth account new Couldn't open wallet. Does it exist? Enter a passphrase with which to secure this account: Please confirm the passphrase by entering it again: ...
2
votes
1answer
290 views

How to specify custom directory with c++ client

With the Go client, one can use the following command to create new accounts/keystore in a specified data dir: geth --datadir ./data account new While using the C++ client, there is no such option: ...
2
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0answers
75 views

Multiple arguments and return params

Sorry for a newbie question. I'm designing a smart contract wherein I need to send in many( around 50) arguments to a setter method and return a list of same number of arguments in a getter. So ...
4
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1answer
457 views

Is possible to transfer data between nodes using cpp-ethereum's whisper protocol?

Right now I am working on developing a standalone application in C++ using libraries of cpp-ethereum, I was looking at the source code for cpp-ethereum and an idea stuck into my mind that wouldn't it ...
3
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1answer
265 views

5th time downloading Blockchain 15 days

I started with geth wallet the first time. Got to near the finish and it started itself over at the beginning. The last four times have been with parity, which seems to queue forevever and then ...
4
votes
1answer
426 views

web3 api in eth

Since, I am not able to use the go client in the multi node mode due to a bug (Multi node private local ethereum and send transaction), I tried to use the c++ client eth. Tried using the go client ...
1
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1answer
289 views

cpp-ethereum-develop cmake error [duplicate]

I have downloaded "cpp-ethereum-develop" zip file from github and unzipped it. While executing "cmake eth" It gives the following error. Unknown CMake command "eth_simple_add_executable". CMake ...
3
votes
1answer
305 views

My address is no longer listed in cpp-ethereum's eth. How do I access my wallet/account?

Context I'm using Ubuntu 14.04 LTS. I cloned the cpp-ethereum repo and built everything using the makefiles. Now (in the same path) I have a bunch of executable binaries in folders such as eth, ...
1
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0answers
127 views

Need OpenCL library for cpp-ethereum on Alpine

I am trying to build cpp-ethereum on Alpine, and I quickly discovered that I don't have quite the same set of libraries available via apk that I have on Ubuntu via apt-get. I have built leveldb, ...
4
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1answer
3k views

How to download/install alethzero ethereum client download windows 10?

I am new to Ethereum and when i see some videos i found they are using alethzero ethereum client installed and running contracts. I am unable to find from where can i download alethzero ethereum ...
5
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0answers
349 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. ...
1
vote
3answers
133 views

how difficult is it to link an address to an account?

Every wallet can generate as many addresses as I want in order to obfuscate the origin and destination of transactions. But each account has exactly one key-pair and it is trivial to get the public ...
1
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0answers
31 views

finding an address in a sharded ethereum

In the future, Ethereum shall be a network of blockchains, all joined by a common root. This will allow for performance improvements in addition to the use of the proof of stake consensus. Having a ...
3
votes
1answer
749 views

contract.address is undefined when deploying a contract with cpp-ethereum and ethconsole

I want to create new contract using cpp-ethereum (built from source) and ethconsole. I followed this guide: https://www.ethereum.org/greeter. I modified the contract to contain only one class ...