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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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64 views

Looking for a generic wallet solution with focus on security [closed]

As above, I am looking for a coin agnostic wallet solution with all basic functionalities of a wallet, particularly multi-sig. Primary coin focus is on bitcoin, bitcoin cash, bitcoin gold, ethereum, ...
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271 views

Adding Nano S Ledger hardware wallet to Parity wallet [closed]

I used to have this here, but accidently told it to forget the contract. Now I want to add it back, but it doesn't show up. I have followed these steps: https://github.com/paritytech/parity/wiki/...
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2answers
520 views

Random election proof of stake

There are currently many cryptocurrencies based on PoS (Proof of Stake). All these PoS algorithms differ from each other. Some or maybe all of them (I don't know) implement some kind of random ...
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1answer
269 views

Fastest way to transfer funds from Ethereum address to Bitcoin address [closed]

I have an Ethereum address with some Ether in it, and I would like to transfer some of those funds to a Bitcoin address. I am wondering what's the quickest and most painless way to perform the token ...
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127 views

Real bitcoin buying versus forex speculation [closed]

so I had a discussion with the colleges today and I would that my arguments would be verified here. Basically the question is what are the differences between buying and selling real cryptocurrencies ...
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0answers
908 views

Can Ethereum support compressed secp256k1 public keys to compute Keccak addresses? [closed]

Starting from a private key, a working functional example provides details for how an Ethereum address can be calculated from an uncompressed secp256k1 elliptic curve public key. This functional ...
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481 views

eth says I have a balance of 35 ether - etherchain can't find my address [closed]

In the ethconsole I get the following: > web3.fromWei(web3.eth.getBalance(web3.eth.coinbase), "ether") 35' When I run web3.eth.coinbase and enter the resulting 0x00f24... address into https://www....
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587 views

What are realistic expectations for an ethereum miner on AWS? [closed]

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. Does this size instance give me a ...
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2answers
743 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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3answers
117 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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2answers
258 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)....
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4answers
344 views

Is it true that colored coins or digital assets (counterparty / ethereum / nxt assets / etc.) have an issue of paying fees?

I'm looking to setup my own digital asset or coin on either counterparty or nxt assets or ethereum to distribute to my loyal customers, but I noticed that even if I created an account for my customers,...
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1answer
85 views

Generator Point G multiple

if in a curve y2 mod p = x3+ 7 mod p ( ecdsa-secp256k1) p=115792089237316195423570985008687907853269984665640564039457584007908834671663 G=...
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1answer
321 views

Are there Ethereum API wrappers? [closed]

I'm looking into developing some Go software on Ethereum and I'm wondering - are there any API wrappers around for Ethereum (something like BTCSuite's BTCRPCClient is for Bitcoin)? I know there is a ...
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1answer
130 views

Decentralized product inventory (instead of simple orderbook)

I am thinking of creating a decentralized market place with public bidding. AS far as I have researched all cryptocurrencies and such only offer public ledgers with simple orderbooks. The only data ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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1answer
88 views

How many proof-of-work algorithm exists for crypto currencies?

How many proof-of-work algorithm exists for crypto currencies ? We know PoW in Bitcoin and Etherium are different. Is there any other algorithm used for crypto currencies ?
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1answer
86 views

How does ENS prevent frontrunning attacks?

Namecoin uses commitments to hide the domain. ENS uses simple hash, which is not hiding.
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2answers
2k views

When are you charged a withdraw fee?

I'm a bitcoin newbie and think that I am missing something. I'm based in Australia although I'm not sure if that matters. I would like to buy and hold for an extended period some bitcoin and ether. ...
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1answer
42 views

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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1answer
51 views

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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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 ...
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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....
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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 ...
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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 ...
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1answer
402 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 ...
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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 ...
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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, ...
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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. ...
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1answer
524 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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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) ...
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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 ...
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1answer
364 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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2answers
108 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
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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3answers
374 views

How to create Ethereum brain address? [closed]

I have used bitaddress.org to create a brain wallet for my Bitcoin. Now I would like to create a brain wallet for my Ethereum using Bitcoin Improvement Proposals (BIP) 32/39/44/49 technologies. Is ...
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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?
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1answer
201 views

Crypto Mining with PC

I have PC - i7-6700K CPU @ 4.00GHz & graphic: Intel Corporation HD Graphics 530. My Os is Ubuntu. How many Mh/s i could receive for Ethereum? Let's assume the current is free.
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1answer
209 views

Which wallet can I use to store all my cryptocurrencies ?

I'm new to cryptocurrencies and I would like to store all my currencies (I read here and there that it is not safe to store everything on Coinbase). So I tried Coinomi which seems quite good but is ...
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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?
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1answer
104 views

Relative licensing restrictions of Ethereum and other projects- Open Source?

Is Ethereum open source? I've heard different things from different people. Stephan Tual has written: "Everything at Ethereum, including our website, our tools, our whitepapers and of course our ...
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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 ...
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1answer
26 views

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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1answer
59 views

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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1answer
28 views

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 ...