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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54 views

Ethereum's PoW difficulty

Bitcoin's block time is about 10 minutes while that of Ethereum is 15 secs. Both are using PoW at this moment, right? How come Ethereum's block time is so short compared to Bitcoin? Is hashing a lot ...
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192 views

How is a node selected to run Smart Contract in Ethereum

A node that runs a smart contract will be paid with GAS. How is this node selected? I guess this node should be trustworthy. Or multiple nodes are running the same smart contract just to make sure ...
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What are protocols in Crypto? What are token protocols?

I understand how Consensus protocols work. They are essentially rules that nodes follow in order to validate transactions and blocks. It seems as if all tokens are their own protocols. So what are ...
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135 views

bitcoin block size and etherenum gas limit

I understand that bitcoin has a fixed block size (1MB). On the other hand, Etherenum does not seem to have a fixed gas limit. (https://ethereum.stackexchange.com/questions/1106/is-there-a-limit-for-...
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Accepting Bitcoin for Services Rendered with Legal Verbiage on Set Coin Price

I accept Bitcoin and Ethereum for consulting work, but would like some feedback for Service Type Agreements that span upwards of a 1-year in an enterprise setting. What's the best method for ...
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Is there such a thing as an "ERC20 compatible Ethereum address"?

I believe the answer to be no, but just asking here to confirm. I think the answer is that it is just the software interacting with the address that is ERC20 compatible or not, not the actual address....
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767 views

Java mining solution

I am a beginner in mining algorithms and I have a general question regarding the mining using Java language. Does it make sense to use Java to develop for example ETHASH algorithm (or any other) and ...
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Would it be possible to create a blockchain that uses only X+ active blocks?

Every blockchain has a beginning, the Block 0 or also known as "Genesis Block". But wouldn't it be possible to have a blockchain or a coin, where only the last 1000 blocks are saved and 1001+ get ...
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242 views

how EC Public key is generated from the private key effectively

if my private key is 123456789123456789, doesn't that mean I have to dot G point that many times to generate my pubkey? there must be a shortcut to generate pubkey, otherwise the time complicity of ...
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What's the point of ETHLend?

I am trying to understand what the idea behing a site like ETHLend is. IIUC, I can borrow coins for an interest, the same way I could borrow a traditional currency from a bank. That part is easy to ...
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39 views

Ethereum in Trezor

I understand that each of Ethereum addresses in Trezor represents standalone Ethereum account. But doesn't this bring problems with sharing funds between your accounts? If 100 people send me 1eth on ...
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A website that provides API for multi currencies [closed]

Can you please help me to find a wallet that provides API for multiple currencies such as: BTC, ETH, XMR, BCH, LTC, DASH. I want to create new address for each of the currencies and check if there is ...
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1answer
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Token vs contract - are they the same?

The Ethereum ERC20 token is also the contract. The token can never live without the contract. The name of the contract is the name of the token. In the code, the keyword is contract and not token. I ...
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How can we use Blockchain for Land Registration Use Case?

How and where can we integrate Blockchain in this use case? Say buyer and seller visits the registration office with sale deed they prepared. The details in the sale deed is compared by the ...
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82 views

How are Bitcoin generated in Video Games?

There are a lot of video games out there which reward the player in Bitcoins or other cryptocurrencies for winning the game or achieving a specific objective. But from where does those crypto come ...
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1answer
200 views

Fundamentally what is the difference between the EOS and Ethereum platforms? [closed]

I know one platform is owned by a company, block.one which owns 10% of all EOS tokens, I'm aware of their ICO structure and it seems their tokens are used as a sort of API token - some have called the ...
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191 views

Is it possible to create a Dapp on top of Bitcoin?

Is it possible to create a dapp on top of bitcoin similar to how it can be done with ethereum? Can it be just as capable as ethereum?
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Does Bitcoin Blockchain solves Byzantine General Problem?

If bitcoin blockchain solves byzantine general problem, can you give an example of how it solves it? Thanks
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1k views

Ethereum Code bots...Scam or not?

So new I cant even afford to trade crypto's yet, but looking and learning. I came across some Ethereum Code bot, promising 13k a day etc etc...one of those "sounds to good to be true" things really. ...
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222 views

Questions about blockchains, network trust and why becoming a node? [closed]

everyone, I'm a software developer and I'm striving to understand the concepts behind blockchain and the projects running on them. I'm not sure if this is the correct place to ask these questions, ...
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1answer
375 views

How is Ethash a 'memory hard' algorithm if it utilizes peak GPU memory bandwidth?

According to the Ethash algorithm described here, the computation for each nonce requires a loop of 64 iterations, where each iteration reads a chunk of 128 bytes from a pseudo-random location in ...
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50 views

Can a cryptocurrency be liquid while it is in its pre-sale, or even ICO [closed]

I am planning to run a Coin's ICO for several years, not interested in the gains to be made from selling out ICO in 3 days NO, but interested in using the COin to end Global Poverty as i deem fit. So ...
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484 views

Why is Ethereum total network hashrate still increasing if there are no GPUS to buy?

The total Ethereum network hashrate is close to doubling relative to its December level. Mining difficulty is also increasing proportionally of course as the total reward per block stays the same. ...
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Can multiple small graphic card memory collect more mining hash rate

If I set multiple 3GB GTX 1060 , It can generate more hash rate than single GTX 1070 6GB. Can I still mining ETH by this 3 Gb cards when the bloCk size of eth is over 3 Gb. EXPLAIN ME.
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In what sense does the security model of proof-of-stake require users to "log on to the internet every few months"

This is primarily a question about something I heard Vitalik Buterin say in an interview the other day. (Unchained podcast's January 9, 2018 episode, at 34 minutes, 15 seconds) I quote: As far as ...
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What factors decides the number of tokens to generate?

Tron has decided to generate 100B tokens with some initial price? What parameters do these centralised crypto owners consider before deciding the number and price of tokens?
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Displaying price in ETH based on USD exchange rate [duplicate]

How do i get the ETH rate in USD, and stored in a variable in php?
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Can any one suggest me what is the valid process for Issuing Token in ICO [closed]

Can anyone suggest me what is the valid process for Issuing Token in ICO? Actually, I have seen some ICO that send Tokens after some delay (some time 48 hrs). I just want to know that what is the ...
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3answers
142 views

Etherium based tokens [closed]

When we say certain crypto currency is based over etherium, for instance TRON, does it mean they have used etherium code from github and modified as per their use case? Or is it something completely ...
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1answer
489 views

How to exchange bitcoins held in electrum to ethereum?

How to exchange Bitcoins to Ethereum through shapeshift.io or changelly.com, from Electrum bitcoin wallet to Jaxx ETH wallet? In electrum wallet do I need to subtract the Bitcoin mining fee manually, ...
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2answers
273 views

Crypto currency as gift

I'm staying in Germany and I have a friend in India. He has a few ether coins in his wallet in India which he bought mid of 2017. He now wants to sell them. But in India, because of taxes, he will ...
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658 views

How to connect existing MEW to Trezor?

I have got my new Trezor but I don't know how to connect my existing myetherwallet to trezor ether address ? Is there any way I can directly import and connect to trezor ? Or I have to create a new ...
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5k views

Radeon RX 580 8GB vs 4GB. Does memory matter?

Does GPU with more memory provide better mining for Ethereum? Here is a Quora an answer: In general, 4GB is sufficient for even the most demanding hashing algorithms and you will not see any ...
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2answers
173 views

Is there a chance to return all of the lost money invested when the chart goes back up? [closed]

Let say, for example, I invested $3 to buy 21 TRX (Tron Tokens), usually a token under Ethereum platform but still working the same as other altcoins when the value goes high, where the price is ...
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4k views

Current transaction fees for various cryptocurrencies

Is there a place that lists current transaction fees for various cryptocurrencies like Bitcoin, Litecoin, Ripple, Ethereum, Bitcoin Cash etc.? The best would be fees converted to some fiat (USD, EUR) ...
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1answer
2k views

Tax implications of withdraw fee from one exchange (Binance) to another GDAX/Coinbase

I transferred 0.2 ETH and 0.3 ETH in separate transfers from GDAX to Binance (GDAX does not charge a fee for this). Then, I transferred back from Binance to GDAX all 0.5 ETH, but since Binance ...
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1answer
144 views

ETH smart contracts v/ traditional

total newb here. I purchased some ETH on an exchange which uses smart contracts, it is in that exchange wallet. I have another wallet which does not support smart contracts, only "traditional" ETH ...
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3answers
178 views

Even though Blockchain is tagged as " Decentralized", wouldn't the organization actually implementing the Blockchain like Ethereum control it?

For example, If I were a business that would want to use the Ethereum Blockchain technology to shift my business to Blockchain, wouldn't Ethereum be in control of the actual underlying Blockchain ...
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1answer
370 views

How to exchange a cryptocurrency from an address that's not in a wallet

Possibly dumb question here (and first-time poster). I have a Coinbase account with several different cryptocurrencies in it. I recently used ShapeShift to exchange ether (ETH) from my Coinbase ...
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4answers
167 views

is it possible to be able to buy cryptocurrencies other than bitcoin, litecoin and eth with USD

I've been looking online for quite sometime but it doesn't seem like I can find this exact answer. I've been looking to buy some cryptocurrencies but I'm hoping to be able to buy them with USD. I ...
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2answers
114 views

Is there a difference in buying coins with bitcoin or etherum?

So today I decided to throw my hat into the ring and bought some stellar lumen coins. Since bittrex is not currently accepting new accounts I decided to go with poloniex. Poloniex doesnt offer ...
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1answer
2k views

Download Bitcoin, Etherium, Ripple rates 1min candles

is there any possibility to download archive with rates for Bitcoin, Etherium, Ripple VS USD? I need 1m ... 1w candles. I would like to find such service and download it on daily basis.
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how much Mh/s is 15000 h/s?

) Question: When Genesis is writing 15000 h/s for 12000usd what is that in Mh/s? I plan to mine Ethereum at the speed of 15000 h/s which is the fastest speed you can buy at Genesis. Then I intend ...
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2answers
1k views

Where can I find On Balance Volume for bitcoin? (or ETH, LTC?)

I recently read about the usefulness of On balance Volume (OBV) in predicting price movement. I use GDAX and don't think it has OBV. (Or is there?) Any exchange that displays OBV? Thanks.
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How is ethereum related to bitcoin?

Is ethereum related to bitcoin? does any one know weather they are related or not.
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1k views

How does Exodus wallet (or other wallet) exchange bitcoin to other cryptocurrency?

I have been using Exodus wallet for a very short time. And it shows that I can exchange bitcoin to many other cryptocurrencies and wise versa. I still couldn't find a good answer on how this exchange ...
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2k views

How are eth transaction faster than btc? [closed]

If I'm not wrong miners are trying to find nonce that satisfies a rule. Then why is btc so slow? I want a technical answer. Can btc ever match eth speed, given no politics?
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ETC vs ETH how do I know the difference?

How do I know if Ethereum is ETH or ETC, when the exchange just offers "Ethereum"
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Restore Wallet From Jaxx to Coinomi: ETH missing (but BTC and LTC are fine)

I have some BTC, ETH and LTC in a wallet created with Jaxx, but I want to use Coinomi instead. I downloaded Coinomi and chose Restore Wallet and entered my 12 words. My BTC and my LTC popped right up, ...
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What are options to store bitcoin or ethereum in different types of places?

I know to option to store bitcoin. 1) A wallet 2) A exchange but both are unsafe As far as i know wallet save the coins offline in your phone and hence if you break your phone or lost it coins are ...