Questions tagged [ethereum]
Questions about Ethereum are off topic. A blockchain-based "smart contract" system with a Turing-complete contract programming language. Questions about Ethereum should be asked on the dedicated Ethereum site: https://ethereum.stackexchange.com.
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network fee to make a transaction on the ethereum network [closed]
I have USDT on my coinbase wallet transferred by a trader from a company called tide invest. However, when I want to send my usdt to coinbase, I get the following message : You need to add ETH to pay ...
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Why in crypto casinos payment is mainly in bitcoin? [closed]
Why in crypto casinos payment is mainly in bitcoin, ethereum, tron and other cryptocurrencies, but there is no payment in stablecoins? Isn't it more profitable to accept payments in usdt, usdc, busd? ...
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Is it possible to use bitcoin-cli deriveaddress rpc call to generate ethereum address?
https://github.com/satoshilabs/slips/blob/master/slip-0044.md
As per this slip, if we just change the cointype in the descriptor, the deriveaddress rpc call should work to generate ethereum addresses ...
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Is the G in Elliptic Curve same for Bitcoin and Ethereum?
Is the G of the elliptic curve the same for Bitcoin and Ethereum? If yes, then why can't we send bitcoin and ether to same public address? If no, then what's the reason behind implementing it like ...
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What Exactly is Blockchain?
I am trying to learn blockchain technology but I could not find clear answers. I will appreciate your help. ^^
Is blockchain a specific algorithm or software? As I know, blockchain is the ...
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Bitcoin testnet addresses
Why bitcoin addresses in testnet are not the same as in mainnet? For example ethereum address in mainnet can be used in testnet's (ropsten, rinkeby).
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Restore blockchain.com wallet(s) in case the company goes away?
So I have some funds on an blockchain.com wallet. Actually it's multiple wallets (some ETH, some BTC)
I followed the backup procedure and wrote 12 English words on a sheet of paper.
There is an answer ...
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developing hd wallet using bip32 and bip 39
I'm developing a HD wallet using C#.
I want to use this wallet for multiple blockchains like bitcoin, ethereum, dogecoin etc...
I've read that I should use bip32 for my wallet. i know what's bip32 but ...
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Is it correct to say that Bitcoin has a virtual machine in the same way as Ethereum does?
I always thought that between Bitcoin and Ethereum only the latter had a virtual machine.
The answer to this thread opened my eyes to the fact that Bitcoin actual has a virtual machine. However, I ...
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Does Bitcoin Core have/need an archive mode?
Similar to Ethereum's Archive Node:
Stores everything kept in the full node and builds an archive of historical states. Needed if you want to query something like an account balance at block #4,000,...
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Why exchanges show Bitcoin price higher than actual value? [duplicate]
I trade crypto on indian platform WazirX and CoinSwitch. Both are currently showing price of 1 Bitcoin to be 44,78,353 Indian Rupees ($ 60,605.51) while the price shown on google as well as Binance ...
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Running ERC20 contract on RSK
Disclaimer: originally asked on the ETH SE site, but advised to post here.
I have been reading about RSK lately and was wondering about the compatibility and possibilities, so I wanted to ask for some ...
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How wallet handles different cryptocurrencies? [closed]
As far as I know, wallet stores private and public keys and calculate balance according to that.
Suppose a wallet(Single cryptocurrency) has 3 keys (private,public). Wallet will find UTXO's connected ...
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Blockchain Login
We're working on a research based on the blockchain and I can't understand a point about login authentication. As we all know, blockchain is distributed or decentralized system, there is no central ...
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Why are there so many fake cryptocurrency airdrops? [closed]
I started learning about cryptocurrency three months ago and I have come across many airdrops spread by scammers who disappear after many persons have signed up on their platform. Are there ways one ...
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Is there any 'Metamask-like' app for Bitcoin? [duplicate]
9 months ago someone asked this same question: Metamask-like web3 inject for bitcoin but I was wondering if there had been be any changes since then.
I'm currently looking for a Chrome extension that ...
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Crypto wallet for payments with no deposit
We are wondering how we can build a wallet that talks to our website and gives the user the ability to request a withdrawal of his funds. We do not know what is the right question for this type of ...
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Problem with data redundancy in block chain
Since the copy of same data is storedon each node in network. Does it use storage space to store same data on each node?
If yes then how the data is decentralised. It is just a large network of ...
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Could a computer virus made less than a mb, which is sent as transaction that attacks miners? [closed]
What happens if computer virus less than a mb is sent as transaction that attacks miners?
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Why are there ETH addresses in bitcoin wallet.dat?
So I have a lot of addresses or pkscript listed in my wallet.dat files that begin with 0014....all...numbers.
There is bitcoin address on the same line starting with a 3.
When I strip the 0014 and ...
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Withdraw and deposit in cryptocurrency exchange website
In an exchange website we just book trades in our database and just when user want to withdraw his BTC balance we make a real transaction in bitcoin network for him. Consider a scenario that a user ...
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What are some other uses for blockchain instead of money? [closed]
What has blockchain been used for aside from money in the 10 years its been around?
I know things like etherium exist, but They don't seem be going anywhere, most of its value seams to come from the ...
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Metamask-like web3 inject for bitcoin
Is there a browser extension that works similarly to Ethereum's Metamask? I am wondering that if there isn't one, is it because of some technical limitation, or that just no one has gotten around to ...
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How is it possible price on Coinbase drops below my Limit Order when it is only partially filled?
I had a post only limit order place for €172 per ETH, about 50% of the order filled before the price dropped to €171.95, leaving my limit order somehow still open? The order was placed when the price ...
TheDream
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Who is a first miner that receive a transaction from end-user?
This is a First Question.
As you already know, the blockchain like Bitcoin, Ethereum is a software program based on peer to peer network system. so I am wondering that who is a first miner that ...
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Is there a way to take out a loan on your Bitcoin like how Ethereum can be used as a CDP in the MakerDAO to get DAI?
I wanted to sell some BTC to pay some bills, but I also didn't want to lose out on the Bitcoin rise in the inevitable future. Ethereum has the ability to be used as a CDP (“collateralized debt ...
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"Fork choice rule" : A general term? or a specific algorithm?
Is "Fork choice rule" a general term including all the algorithms used for choosing a branch among other branches in a fork (including longest chain rule in Bitcoin etc) ?
Or is it a specific ...
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If the nonce is 32 bits why the proof of it is difficult?
I want to know why mining of nonce is difficult?
The nonce is 32 bits (4294967296) and a high level Nvidia graphic card can check and mine it in a second.
why do we need a pool to mine a blockchain?...
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How to model randomness in validators selection in PoS?
I searched a lot here and on the Internet to figure how how randomness selection of validators in PoS works? I understand it is a random selection based on fraction of stake a validator has, similar ...
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Data for time a transaction spent in a pool before it got added to a block
Is it possible to collect data for when an transaction was added to the pool to when it was added to the block?
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api limit workaround
Are there any ways to avoid limitation for api calls (5/sec)?
I need the info about transactions and balance (of certain account), UTXOs and the ability to broadcast my transaction.
Currently I am ...
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What are the biggest Proof-of-Stake roadblocks? [closed]
What are the biggest hurdles (technological or otherwise) that the Proof-of-Stake consensus algorithm must overcome to become the de facto consensus algorithm for blockchain? Or put differently, what'...
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Why did the lightning network implement a gossip protocol?
As pointed out by many lightning developers in the past (e.g. Rusty's 1 million channel challenge) the gossip protocol is quite noisy and a part of the BOLTs causing many engineering challenges.
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Generator Point G multiple
if in a curve y2 mod p = x3+ 7 mod p ( ecdsa-secp256k1)
p=115792089237316195423570985008687907853269984665640564039457584007908834671663
G=...
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When does Ardor smart contracts come into effect and how does it work compared to Ethereum, EOS, and Lisk?
Ardor announced they are launching smart contracts on their system and how does it work compared to the other platforms like Ethereum, EOS, and Lisk?
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Can I use lightning for ERC-20 (Ethereum coins)
Just finished setting up my lightnig node. It is awesome!! Does anybody knows an implementation or documentation that explains how to make it work on rinkeby or ethereum mainnet?
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Blcokchain corrupt ledger
What happen to the node if we find that node on blockchain has corrupt ledger?
Is the ledger sync with other ledger or get discard.
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How does using a Turing-complete programming language compromise the security of the network? [duplicate]
I have read many places that the decision for Ethereum to use a Turing-complete programming language sparked a lot of concerns over security. From my understanding, not using a Turing-complete ...
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Are there any smart contract systems that are self executing without the need to have an external process to initiate a smart contract? [closed]
Doing some research on smart contract systems. I want to create a self executing smart contract that can monitor external data like say the weather from an api. Currently ethereum and other smart ...
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What is single member blockchain?
I just heard about single member blockchains like quorum and hyperledger-fabric. So what does single member mean? Is this some kind of restriction or what?
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Ethereum alternative to bitcoind
A client have payment system that uses bitcoind wallet / daemon.
I know he can expand to litecoin / dogecoin by just copy litecoind / dogecoind then console commands are almost the same.
I am ...
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How to connect to blockchain via a "rig" miner? [closed]
I would like to connect the following rig (please see the photos) to a blockchain platform (I prefer a platform which is simpler to use :) ). Maybe this rig would not be appropriate for Bitcoin, but ...
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Create wallet address on user registration for trading platform
I am creating a crypto-trading platform . I wanted to know how to create wallet address dynamically for all new registered user and also create new address for every transaction.
I am using bitcoind ...
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How does blockchain technology handle the actual transaction data?
My understanding of how a transaction is secured in blockchain, especially in bitcoin, is that the output of transaction data is locked to the recipient's address (a shorter version of his public key)....
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Differences/similarities of "Bitcoin script" and "Ethereum smart contract"?
Can we compare Bitcoin script and Ethereum smart contract ?
And if yes,
What are differences/similarities of Bitcoin script and Ethereum smart contract in sense of functionality, architecture and ...
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Exchanges and security
How can I ensure that my crypto-assets are secure when trading in a certain exchange? Even when I have my private wallet, I should deposit into theirs before trading.
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Trading ERC-20 based token [closed]
The 12th of February 2017 numerai gave 1M NMR to 12K users.
NMR is based on ERC-20 (ethereum protocol). I was one of the lucky receivers. A few months later, crypto exchanges started trading with NMR ...
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What is the "main" difference between consensus mechanism of Bitcoin and Ethereum?
Bitcoin and Ethereum both use proof-of-work (PoW) consensus mechanism. One of differences between Bitcoin Pow and Ethereum PoW is difficulty level, meaning that while in bitcoin block generation rate ...
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how to embed coin prices of my choice in my website [closed]
sorry for bad english, let's just say i want to embed specific price of coin for example ethereum and bitcoin $20 price in my website, in other words it shows $20 rate of btc and eth on my website not ...
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Is it possible for there to be a virus in the blockchain?
can a blockchain ever get a 'virus', that continually replicates itself, continues paying for gas (if on the ethereum network) and survives/self-replicates through the blockchain, similar to viruses ...
