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Questions tagged [ether]

Ether (ETH) is the main internal crypto-fuel of Ethereum and is used to pay transaction fees.

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301 views

What is the current size of the Ethereum State?

What is the current size of Ethereum's state in bytes? I am not asking about the size of the blockchain with blocks headers, transactions and receipts. I am looking for the size of all the structure ...
3
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0answers
1k views

How to encode data payload in ETH transaction

I'm using python to sign and send ETH transactions, and would like to do the same for ERC-20 token transactions as well. I'm having trouble correctly encoding the data payload to invoke the transfer ...
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0answers
1k views

Issue won't allow this transaction (Smart contract)

•Windows 8 •Mist 0.8.9 •Tesnet When I publish my crowdsale smart contract and try to send ethers,i have this warning
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0answers
67 views

Issues Retrieving REP tokens

So I'm trying to retrieve my REP tokens, yet the JSON key backup that I pull out of my library/ethereum/keystore folder throws an error in the Javascript console saying "your key is not the proper ...
3
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0answers
158 views

Help with Withdrawal of ETH from TheDAO Withdrawal Contract

I obviously screwed up when attempting to convert TheDAO to ETH using the DAO withdrawal contract. I sent my DAO tokens to the withdrawal contract address http://etherscan.io/tx/...
2
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0answers
23 views

Ethereum - Exporting Accounts/Balances from full node

I have a Ethereum full node that I will be using to take a snapshot for an airdrop for a project I am working on. The node is running and syncing. The issue currently is that there doesn't seem to ...
2
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0answers
66 views

Can we use Ethereum Swarm to store normal data other than blockchain or dapp data.

I want some basic data to be stored like name and city phone no etc.So just want to ask can I use ethereum swarm just to store file and make several node to create decentralized storage.
2
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0answers
124 views

Send ERC20 Tokens from Fixed Supply Token Contract to TokenCrowdSale Contract

For ICO Crowd Sale I have created 2 contracts one is MyToken.sol & other is MyTokenCrowdSale.sol. MyToken.sol creates fixed supply ERC20 tokens. contract MyToken is DetailedERC20, StandardToken { ...
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0answers
381 views

Retrieved hash chain is invalid

I get this error 4 times. about currentBlock: 4350000, highestBlock: 5656749 This real network, not test. The memory on my machine is not full, restart does not solve the problem logs May 22 09:...
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0answers
1k views

Web3 - how to send transaction with some data and include Ether at the same time?

Using web3 0.20.3 I want to call function and send some Etherium at the same time. JavaScript Contract = web3.eth.contract(ABI); Instance = Contract.at('0x162b74ea16da6ae9d7f7b349eaeab2fcadf4e835')...
2
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0answers
70 views

Did the original Ethereum ICO have a different BIP32 word list?

I have a 12 word seed which I believe should be BIP32 compliant and I think is from the original Ethereum ICO. It was in an email sent to me (by myself) on 10th July 2014 - which was CoinSummit ...
2
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0answers
403 views

Token contract and crowdsale contract deploy

I am Testing with an Ethereum Based token contract and i would need some help deploying the Token contract and Crowdsale contract. I already have done this, deploying booth contracts and allocating ...
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0answers
137 views

Read function returning blank array in geth

I have deployed a smart contract on geth which has 2 simple read, write functions in it. Then I called the write function; e.g. payment.place_order("Laptop", 10,{from:eth.accounts[0]}). After the ...
2
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0answers
93 views

Parity 1.7 [-32601] Method not found CLOSE

I just upgraded Parity to 1.7. The syncing with the Foundation chain has not completed. I decided to create a new Account while the syncing was happening. I am using the browser interface. Everything ...
2
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0answers
335 views

Can I use geth light sync for mining purpose

Iam new to this, I wanna start mining ethereum, I have tried over 5 times to fast sync geth, with ethereum wallet and failed to do so, as it would get stuck, sometimes my pc froze, would take days ...
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0answers
87 views

Can I get back lost ETH in splitting attempt?

Please can I have some info if I can get my lost ether back. I had eth in presale wallet. I imported the presale json file on Ethereum Wallet 0.8.9. That created a new wallet with correct amount of ...
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0answers
395 views

Can't see GPU when starting with rc.local (Linux)

I'm mining ethereum on my Linux Mint mining rig with the claymore miner. I can manually launch my miner with the command line but if I try to start the miner with /etc/init.d/rc.local then I get the ...
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0answers
188 views

Can't deploy contract, does not recognize my 1 ETH

The console says: We can't estimate your gas usage properly, because you need at least 1 ether in your account Select fee is frozen. There is one ether listed at the top of the console.
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0answers
534 views

Mist started re-syncing and ethers are gone

I downloaded the blockchain with geth --fast --cache=1024 option and size of my blockchain data after download of 2412706 blocks was around 10.9GB. I imported my accounts to keystore files and ...
2
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0answers
82 views

Mist 0.8.5 & Geth 1.5.0

Current Mist is 0.8.5 and it runs geth 1.4.17. How can I initial geth 1.5.0 by Mist 0.8.5 without manually start Geth 1.5.0 first ? It's all to do with instruct geth that chaindata is on an external ...
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0answers
175 views

How to identify database of Ether

After reading wiki, I understand Ethereum is a programming platform to develop different blockchains. However, there seems to be one Ether currency that is traded on exchanges. How to identify that ...
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0answers
506 views

Ether.li Wallet lost?

I created a Ether.li wallet but missed to press the finish button on the page where you note your keys. Then i transferred money to the wallet which was not saved. After i got on the Ether.li hompage ...
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0answers
107 views

Where was the example web app to send Gavin Ether?

I once found an example webapp where you could send Gavin ether through a webform. Anyone know where it was?
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0answers
31 views

ERC20 Token support for metamask website payment

I have the following code working in my site to accept ethereum payments in my website via metamask.... <!DOCTYPE html> <html> <head> <script src="https://cdnjs.cloudflare.com/...
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0answers
51 views

Geth SWARM no peers found!

Synced via Geth lightnode to latest block --cache=2048. (7200RPM HDD with 8GB RAM) Then created new geth account and did swarm --bzzaccount $BZZ I'm am able to only browse localhost, upload to local ...
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32 views

rinkeby faucet unsupported service error

I pasted the url of the facebook post and when I selected the amount of ether then this message is shown.
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0answers
92 views

Ethereum Qr-code with amount?

How should a qr-code be formated with an amount in it? The npm package ethereum-qr-code uses the following format according to EIP-67: ethereum:0x7cB57B5A97eAbe94205C07890BE4c1aD31E486A8?gas=42000&...
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0answers
27 views

method personal_signTransaction not supported

Good Time I'm trying to test a smart contract in local ethereum wallet with connecting to the ganache-cli but when I try to create a wallet contract it gives me an error: method ...
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0answers
40 views

Ethereum transactions full history

How do I retrieve the transaction history of ethereum? I want to get all transactions that include this crypto currency for specific time periods. I looked at the ethereum API, but it needs some ...
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0answers
125 views

Any php script to sign transaction?

Can you recommend some php script to sign transaction.Thanks.I want to find some php script to sign transaction and without using web3.
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0answers
40 views

Ethereum js wallet for php

https://github.com/ethereumjs/ethereumjs-wallet I need this library with the same functions in PHP Would u give me the link
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0answers
40 views

Is there a more elegant way to do an aggressive multi-send?

I understand there are many approaches to do multisend but for me timing is a priority and I do not want to stop the transaction if a address.send fails. function multiSend() internal isAdmin { ...
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0answers
63 views

Triggering contract fallback function by sending ether from another contract

contract A { uint public u; event abc(address); constructor() payable{ u=100; } function () payable{ emit abc(msg.sender); u = 25; } function setu(uint i) { u = i; } function ...
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0answers
38 views

Why Ropsten Testnet has Total Ether Supply < the biggest ether holder balance?

Let's see two below image that I cropped them from ropsten.etherscan.io. Can someone tell me why Total Ether Supply < the first address balance?
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0answers
15 views

What happens to the missing coins in this transaction? Copy paste this code into remix to reproduce my original bug. Thank you

pragma solidity ^0.4.24; contract TheCaseOfTHeMissingCoins{ string public name; string public symbol; uint8 public decimals = 18; address public owner; mapping (address => ...
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0answers
157 views

What does total number of blocks per day mean in Etherscan?

I tried to figure out what does total number of blocks per day means here and on the Internet, but i failed. For example, the number of blocks on 26 Aug is 5947 [here https://etherscan.io/chart/blocks]...
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0answers
25 views

How to know the price of the day of ETH in USD by Oracles?

Consider in a contract the payer intends to pay recipient ETH based on USD (ex. the salary is 1 USD but paid by ETH). So, if today contract needs to know equivalent value of 1 ETH in USD exactly at ...
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0answers
22 views

trading a secret message with some person only after money is paid

I want to build a DAPP where person A trades a message with person B for ether. Since the message is secret, person A encrypts the message by using public key of person B and stores the message in ...
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0answers
54 views

Not able to access ropsten account

I installed ropsten testnet and created 2 accounts. "eth.accounts" returns the following: ["0x54eb2b021a26c17b83927ad14587a24b0bd16b66", "0x14e6b19304fb3c98a73acea5f80d2c056ee5c09f"] I wanted to ...
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0answers
66 views

Is it possible to transfer ether from different wallets using php

I am developing a payment interface where each user will get different wallet address to send ether. After successful transaction I want to move those to another wallet. There is no connection with ...
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0answers
48 views

UX smart contract trigger

I want to know if my use case can be implemented on Ethereum network's smart contracts. This is my use case: A P2P app (similar to torrent clients) installed on PC or phone I (sender) click on a ...
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0answers
38 views

How does hosted wallets works?

How does hosted wallets works, Anyone can write about it step by step? I have noticed, Companies who provides hosted wallets stores all funds of their users and users are just provided deposit ...
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0answers
24 views

Miner incentives in a permission blockchain with a digitally native asset on Ethereum?

Would be very grateful if someone could give me their opinion and ideas on whether this is possible, and if so, how this might be done: If one were to build a permission blockchain on Ethereum with ...
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0answers
720 views

web3.fromWei(eth.getBalance(eth.accounts[0]), “ether”) shows 55 in red

so maybe i'm not understanding, i've left my miner up and running for quiet sometime, and i run a web3.fromWei(eth.getBalance(eth.accounts[0]), "ether") on my only single account and it shows up a ...
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0answers
50 views

Plasma ethereum

I am reading the plasma white paper and I don't understand the following part : The problematic sentence is : "Additionally, significant scalability is achieved by minimizing the funds represented in ...
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0answers
72 views

Truffle - Stub contract functions in Mocha

How do I stub out contract functions while testing in truffle in javascript. Normally in mocha I would import sinon and do a sinon.stub command. It doesnt seem that I can import npm modules into the ...
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0answers
343 views

How can I parse local Ethereum blockchain?

I need to parse live Ethereum blockchain to retrieve all transactions that belongs to particular smart contract's address. So my general question is how can I do it properly? My thought about it so ...
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0answers
617 views

ICO token contract that returns tokens when Ether payment is sent into the contract

Background Using the popular Token-Factory example for an ERC20 ICO Token contract I published a contract on Rinkeby. I have been working with it over the past week to figure out how to get it to ...
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0answers
449 views

Question: Mining Rewards and Uncle Rates

Looking at https://etherscan.io/chart/uncles we can see that uncle rates are on the rise lately. Recently every day more than 3000 ETH is awarded in uncle rewards. How does this situation affect ...
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0answers
305 views

Smart Contract Transaction Receive on Blockchain Wallet

I received a transaction coming from a smart contract but Blockchain.info Wallet does not allow to use funds coming from smart contract. I tried to import my private key on MyEtherWallet but the ...