We’re rewarding the question askers & reputations are being recalculated! Read more.

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.

Filter by
Sorted by
Tagged with
1
vote
1answer
23 views

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 ...
6
votes
1answer
379 views

Is it possible to combine PoW with PoS by taking turns?

I have read about cryptocurrencies and am very excited by many. I have read that one of the worries and constant debates is Proof of Work vs Proof of State with respect to securing the validity of the ...
2
votes
2answers
475 views

Why are existing distributed database technologies not applicable to cryptocurrencies

Why are existing distribued database technologies such as mongodb not useful for hosting the blockchains of large cryptoapplications, after all they are just distributed key-value stores? how does ...
1
vote
2answers
171 views

HyperLedger Fabric from IBM is fork of Tangle or Etherium?

I read as if HL Fabric was the most interesting thing ever created on the use of blockchain, but when I read the documentation (very short) about Hyperledger Fabric I came across some coincidences. ...
4
votes
2answers
634 views

How was Ethereum hard fork's replay attack was handled?

On etherum, there was a hard fork which resulted in ETH and ETC. My reading indicates that it suffered problem of replay-attack. Question: How was this problem resolved for Ethereum? In my ...
1
vote
1answer
288 views

Who managed bitcoin and ethereum decision making? Who approves Bitcoin upgrades and forks?

To my knowledge in Bitcoin and Ethereum decision makings are decided by the miners and developers. I like to know who makes the final say on the approval of a change to Bitcoin/Ethereum code or ...
0
votes
2answers
257 views

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)....
1
vote
1answer
283 views

DAO Dividends In Ether?

A friend of mine told me that The DAO pays dividends in Ether. I can't find this anywhere, but assuming that it's true, how is this possible that it pays dividends if a person purchases The DAO ...
0
votes
1answer
128 views

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 ...
0
votes
1answer
491 views

Can someone show me an example rootstock smart contract that is the equivalent of an Ethereum Smart Contract?

Coming from Ethereum, is there an example rootstock smart contract code that is the equivalent of an Ethereum smart contract code?
0
votes
1answer
48 views

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 ...
5
votes
2answers
15k views

In Ethereum, what is an uncle block?

In Ethereum, what is an uncle? Why does Ethereum take this approach, instead of having a single chain of blocks back to the genesis block? If you mine a block, and it only gets included as an uncle, ...
0
votes
1answer
50 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 ...
1
vote
1answer
153 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 ...
0
votes
1answer
2k 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 ...
0
votes
2answers
592 views

Ethereum: Cannot use master password on Ethereum wallet

Ethereum. I love the ideas behind it and it's exciting and such... but damn if this isn't the most user unfriendly thing I've ever seen?! So a while ago, with a view to begin mining ETH on my GPU, I ...
0
votes
1answer
110 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-...
2
votes
1answer
36 views

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 ...
0
votes
1answer
21 views

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....
1
vote
1answer
337 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 ...
0
votes
1answer
27 views

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 ...
0
votes
1answer
93 views

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 ...
1
vote
1answer
127 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 ...
7
votes
6answers
818 views

Why is sharding not possible with a distributed blockchain?

Hi guys I've been reading a lot about the problem of scalability in crytocurrencies and how to run a full bitcoin node is not a possibility on a mobile device for example, as a result we become ...
0
votes
1answer
33 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 ...
1
vote
0answers
29 views

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 ...
0
votes
1answer
397 views

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 ...
3
votes
1answer
353 views

Should I join a pool?

I've configured the large (8x) GPU image on AWS at 2.60/hour. I ran it goes few hours after setup and mined nothing. This was my first foray into mining. Given this setup, am I better placed to join ...
0
votes
1answer
46 views

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 ...
0
votes
1answer
63 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 ...
-1
votes
1answer
102 views

Receiving payments from users for over 150 coins

I would like to receive cryptocurrency payments for bitcoin, ethereum, ripple, stellar and over 150 different altcoins via my website. Similar to a cryptocurrency exchange such as Binance, I would ...
1
vote
1answer
130 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 ...
2
votes
1answer
195 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 ...
1
vote
0answers
174 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?
0
votes
2answers
165 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 ...
0
votes
1answer
33 views

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?
0
votes
1answer
37 views

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.
0
votes
1answer
473 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. ...
0
votes
1answer
205 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, ...
0
votes
1answer
247 views

Why Ethereum is growing in USD but decreasing in BTC?

Please explain to me why the ETH/BTC price is decreasing but ETH/USD price is increasing. How does that work? Why it costs less in bitcoins but more in USD?
1
vote
1answer
168 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 ...
4
votes
1answer
194 views

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 ...
0
votes
3answers
141 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 ...
0
votes
1answer
36 views

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?
1
vote
0answers
28 views

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 ...
0
votes
1answer
382 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, ...
0
votes
1answer
522 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 ...
0
votes
1answer
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) ...
0
votes
1answer
2k views

Transfer Bitcoin from between two different wallets

In my application i want to received payment from different user. Each user may use different wallets like mycelium, jaxx and many more... My application's wallet is in coinbase, is it possible to ...
0
votes
1answer
1k views

Coinhive for bitcoin/ethereum

I know that CPU mining wouldn't pay for electricity bill, but what if some sort of CPU miner was deployed to a website? Similarly to CoinHive with Monero. Would such mining make sense? I started ...