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Questions tagged [mining]

Mining is the process by which it is ensured that the blockchain is the same across all nodes. A miner that solves a cryptological problem related to the previous transactions on the blockchain is rewarded with Ether.

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Measuring energy usage of smart contract execution

Looking into measuring the energy consumption to me of executing particular smart contracts when mining, any tips on how to go about this?
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How to search through blockchain?

I m doing project for document verification using blockchain in which we don't have to carry documents everywhere, hash key of block will fetch data of doc from blockchain.I m not getting how to ...
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What is the Best Cryptocurrencies to Mine in 2019 ? Is it profitable [on hold]

I m new to Cryptocurrency but I am wondering to find Best Cryptocurrencies to Mine in 2019and tell me Is it profitable to invest in Cryptocurrency. Experts Tell me what will be the future of crypto as ...
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Changing “proxywallet” in “local.config” in ethOS, but I receive mining reward in previous address

I've changed my proxywallet from proxywallet 0xB4... to proxywallet 0x5B... in the local.config file. However, I received mining reward again in previous address: 0xB4... . Do I need to restart the ...
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Error CUDA mining: an illegal memory access was encountered

While mining after a while i got this error message "Error CUDA mining: an illegal memory access was encountered" or "Runtime error - ethash_cuda_miner::search, line 365" the miner works for some ...
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Linux Geth Mining: Stuck at Commit New Mining Work in private blockchain Offline

System information Geth Version: 1.8.20-stable Go Version: go1.11.2 Operating System: linux GOPATH= GOROOT=/home/travis/.gimme/versions/go1.11.2.linux.amd64 Genesis.json { "config": { "chainId": ...
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How to control an ethOS rig miner remotely?

Apparently one of ethOS features is instruct rig to remote reboot and other settings remotely. How to control an ethOS rig miner remotely ? Apparently, I need to edit local.conf file. If so, how ...
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How does number of miners impact in processing the business logic(smart contract) in Blockchains

Does a number of validating devices/miners have an impact on processing business logic? If I understand correctly, as the number of validating devices increases, the time it takes to reach the ...
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what happens to the transactions inside an uncle block And what if a contract creation end up in an uncle block [duplicate]

Can anyone suggest what happens to the transactions inside an uncle block ? And what if a contract creation end up in an uncle block. The whitepaper(ethereum) does not give any information whether ...
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What is the point of switching to ProgPOW for ethereum, when POS is coming in the coming year(s)?

With the recent discussion of the new ProgPOW mining switch. What is the point of it when POS is coming in the coming year(s)? I understand it disables the ASIC miners, while benefiting the GPU miners....
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Who decides what kind of token reward a miner gets for mining a block?

Preamble: To my understanding, a Bitcoin miner creates a new block, put some necessary information in it incl. some transactions from other participants and one transaction which sends 25 Bitcoin to ...
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How to set an address where the reward will go in `ethOS`?

How to set an address where the reward will go in ethOS in a miner rig ?
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What useful information can we get from ethOS mining log?

What useful information can we get from ethOS mining log information ? For example, can we find the ethereum address of this miner from this log information ?
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General question about totalSupply: fixed since first moment (aka Bitcoin) or indefinite (aka Ethereum)?

In an answer to a general question about totalSupply, I gave some rough indication about the aim of token deployer vs totalSupply: Why is the totalSupply of this token statically initialized to ...
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How to know the address of a miner with ethOS operating system?

How to know the address of a miner with ethOS operating system? (1) Is there a specific command to know the Ethereum address of this miner? And (2) Is it possible that I would be notified by an e....
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Is it possible to to send out more ether than account has while compensating for it by another transaction in the same block

Is it possible to have the following scenario? Account A has 20 ether, account B has 20 ether In transaction 1. Account A sends 25 ether to account B In transaction 2. Account B sends 10 ether to ...
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Understanding EtHash Algorith with Dag

I am trying to fully understand the EtHash algorithm, I found in this link a graphic explanation for the algorithm. But I have some doubts about the image. In the dagger hashimoto algorithm there is ...
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What does mining software do when two tx are sent in one block with incremented nonces, but the second tx relies on the completion of the first?

If I call approve and transferFrom on an ERC20 token in two transactions, with the nonces being 1 and 2, respectively, how do the miners know which to accept first? Do the miners choose the ordering ...
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Claymore Miner segfault after pool detection

In Ubuntu 18.04.1, I'm running into a major problem trying to get my 6 Sapphire Radeon RX 480 cards to mine properly after installing multiple desktop environments screwed up my system and forced me ...
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Who generates the mathematical problem for miners?

In POW miners solve an problem for successfully mining a block, who provide the question to the miners ?, does all miners work on same problem ?, and how the miners verify the answer ?, if the problem ...
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How do miners claim gas from an invalid transaction?

Suppose a transaction T changes the state from S to an invalid state S'. For example, say, it ran an long loop of no operations (no_op), and attempted a double spend. Since this T transforms the state ...
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1answer
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How Ethereum consensus validates same transaction from different miners? [duplicate]

In an Ethereum node, my brief understanding regarding transaction flow is below. When a client initiates a transaction, all mining nodes receives this request. Based on gas price, miner choose to ...
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Can't we incentivize miners to include more transactions in their block?

If you go to etherscan.io, you can see that each block has the different number of transactions. Can't we incentivize miners(e.g. give more rewards ) to include more transactions in their block so ...
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What are the correct steps to make connection and communication within one Node by creating Private Network in windows?

What are the correct steps to make connection and communication within one Node by creating Private Network in windows? Installation of Geth is done in windows successfully, puppeth is also running. ...
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1answer
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How to call geth mining through java code manually ?

I am using web3j and Geth and created a private network. However, I want to do the mining manually whenever required, since don't want to jam the server when I am in the development phase. For that, I ...
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How do consensus vulnerabilities occur when parity nodes do not mien?

While familiarizing myself with Ethereum, I found multiple security alerts referring to consensus issues, most notable those that arose because the geth and the parity client handled certain edge ...
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How to limit minimum amount of value transfer Tx that can be included in a block by a miner : Dapp?

In my scenario, I would like to keep a restriction on the min value on a transaction. For example, if A is to transfer some ETH to B, the min amount he can is > 0.01 ETH. So that a miner cannot ...
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1answer
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Where is the function that rewards the miner address for mining the block?

I have recently been digging into go-ethereum and have 'plugged' my own consensus mechanism which requires a node to solve a simple equation (2+2) etc to seal a block. However, even after letting it ...
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Geth and Private Blockchain Mining

I am trying to set up a private blockchain for the first time with a Geth client. After initializing my custom genesis json file, running the networkid in the console and setting up a couple of ...
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1answer
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What is the purpose of Private Blockchain?

What is the real purpose of private blockchain for example in Ethereum ? I mean found a lot of tutorials online about creating a private blockchain, creating an accounts there, setting coinbase accout,...
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Run testnet in a cluster

I have launched a blockchain testnet in a cluster with different nodes and I have some questions about how it works. If I run more than one geth client(a node in the blockchain) in one node of the ...
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can only change header's extra data to mine a new block? [closed]

Fix 'nonce' and 'mixDigest', only change 'extra' to mine a new block.
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Miner accepting 0 price transactions

I am hosting a private blockchain and I am testing out the Geth functionality. I have deployed a Solidity contract based on the Greeter example. The functionality is not important, but suffice to say ...
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I have connected two notes using bootnode in ethereum private blockchain but mining is not started why?

I have generated the enode from Bootnode in Ethereum private network and i connected three individual nodes using that enode through Bootnode, and i have checked whether that nodes are connected or ...
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Does lowering the share difficulty alows me to find more blocks?

Lets asume that I've a very powerful server with very fast internet connection (32GB RAM, 4GBit/s upload and download) which runs MiningCore and Parity for private mining. Does decreasing the Share ...
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Private network: Using geth to mine for parity nodes

I want to set up a private Ethereum network using a parity client. Ideally, I want to resemble the "real" Ethereum network as close as possible. Thus, I want to set up a proof of work network. For ...
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1answer
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Do I need to start mining in order to process my own transaction in GETH?

I am running my own GETH node, so that I can check status, and make transaction when possible. I can sync with the main net and check status of contracts without start mining. But when I send a ...
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0 txn in mined block [duplicate]

How is it possible for a block to be mined with 0 txn? https://etherscan.io/block/6739171 That's an easy way to get 3 ETH block rewards.
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1answer
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Web3js send ERC20 token with my own mining machine

Is it possible to send custom ERC20 token using my own mining machine? We have a big website where we are going to use our own Custom token but the problem is when we send tokens to the user we need ...
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What happens if you transfer ether and no miner is running?

What happen if I transfer ether from account a to account b on a private chain with just one node and that node is not mining?
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How do uncle blocks affect Ethereum world state?

Let's say you have two miners: A and B. Let's also say you have two transactions: one which increases a number at a smart contract by one (transaction X), and another which decreases the same number ...
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1answer
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Offline signed Transactions not being mined on private net

I am running a geth node and tried to perform a load testing by giving multiple transactions (1000 tx) from front end. As the application is not crypto related and need the blocks to be mined faster, ...
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1answer
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Does a non-miner node validate both single transactions and an entire block?

My understanding is that an originating node broadcasts a transaction to its neighbours, who all validate the transaction to ensure (a) the signature is valid and (b) the state change is valid, before ...
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1answer
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Extra incentives for miners in smart contracts

I am thinking to create a smart contract where miners are not only incetivized by gas price but where basically the miner can get other assets like erc20 tokens if he/she mine my transaction in the ...
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1answer
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CUDA device Quadro K620 has insufficient GPU memory

I am new to Ethereum and wanted to clarify whether mining is possible if the graphics card has below the required amount of stated memory and it is part of a mining pool? I use ethminer and the ...
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1answer
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Is it possible for the miner of a block to be address 0x0?

Take a look at this transaction: https://etherscan.io/block/5305. The miner is listed as 0x0000000000000000000000000000000000000000. Is this reasonable? Did someone configure their node incorrectly? ...
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1answer
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When do you get eth when mining eth?

I ran Claymore's eth miner for 8 hours and got 200 shares. I set my eth address when I ran the miner, but no eth was deposited to my address. When I restarted the miner the shares were reset to 0. ...
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1answer
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How can I get the records of invalid blocks once have been mined?

As we all know, an invalid block will be ignored and won't be propagated when a verifier finds its invalidity. However, if there is a need to get the records of all invalid blocks once have been mined ...
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Nonce in proof of work

When a block is being mined nonce will be generated so that the nonce is appended with the previous block hash,data. Then the resulting hash of that appended value should be less than the target. The ...
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Is there a temporal reward in Casper, that the earlier you place bets, the more you are rewarded?

In Casper, the consensus-by-bet proof-of-stake system, is there a temporal reward, that the earlier you place bets, the more you are rewarded?