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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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1k views

Ether missing after Etherli transaction, Internal Transaction?

I'm new in this world and already have a problem with my ETH, hope someone can help me.. I used the wallet of ether.li but saw another wallet for my phone. So I did a transaction of 2ETH from Etherli ...
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333 views

Will not a PoS implementation converge in a much less wealth equally distributed system?

With the current trends of prices in crypto and the long term vision supported by the community (HODL!), the implementation of Proof of Stake could eventually derive in big ETH stakeholders getting ...
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API or code to find the current price of a ERC20 compliant token listed on Etherscan

In the web application I am working on , I need to find the current price of an ERC20 token listed on etherscan . How can this be done using code or some etherscan api ? Any help is appreciated.
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Response stuck when creating contract

I am creating a contract on my local blockchain network using web3. On my node , contact is created and address is generated. But on node application, response is struck. Here is my node code: ...
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1answer
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problem calling balanceOf from another contract

I try to learn solidity and i have a problem. I've created a base token and i want to call the balanceof method from this token in another contract. In Solidity Remix i get : call to BaseTokenBet....
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1answer
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Computer lagging & low MH/s & stop mining

Hi I am very new to mining and tried using Claymore DualMiner to mine ETH on the Nanopool. I've set everything up, synced the blockchain and generated the config file from https://nanopool.org/ and ...
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1answer
24 views

Best ways to get only “active” in arrays - get group members

let's say I have an group contract where users can join and leave groups. When a user joins a group, his address will be added to members[groupId]. When he lefts, the members[groupId] will be set to ...
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1answer
47 views

Ethereum Private network for Production use case

When I should consider to use Ethereum Private network for Production use case? Can I dictate network difficulty rules and apply permission on such network. Regards Dev
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1answer
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How to view or transfer initial ethereum smart contract balance?

I created a new smart contract token with initial supply and deployed it via MetaMask. Then I added this token into MetaMask but token balance is Zero. Now, My question is when we create a new ...
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1answer
78 views

Decoding Hex value in solidity

I am trying to view values stored on my ethereum contract using ethereum wallet. Currently the values are being placed onto the contract in hex format. Is there a way to decode them on the contract so ...
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2answers
438 views

How to transfer Ether to ERC20 token contract?

I have a function that needs to make transfers to a token smart contract as well as personal accounts upon satisfaction of some conditions. function completeSale() onlyOwner public { if (...
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PFeast : what’s that token?

While everyone can create a token, this one seems to have attracted a lot of value from third party users (current ether balance place it in the top 500 and with more than 9000 users). By ...
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2answers
33 views

Can you store anything other than Eth in one wallet

Total newbie to blockchain. I want to use ethereum to store information and not so much currency. For example, I want to create a game where I can store someones point. Can the wallet address store ...
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1answer
45 views

how can I pair my ERC20 token with Ethereum

I am building an exchange and i just want to know how this pairing thing works. How can I pair my ERC20 token with other crypto assets like Ether and BTC?
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3answers
147 views

Issuing bonds on Ether

Envisage the following scenario: You are running a business, which requires a float to operate. Your float is x amount of USD This float yields a annual revenue of a XXX amount of USD This float ...
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6answers
29k views

Insufficient funds for gas * price + value

Sending Address has over 1 Eth in current Balance. Using the Geth console, I can send many transactions of any amount less than .033 eth.sendTransaction({to:'...
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1answer
239 views

Ethereum mist wallet not synchronising, not showing Ethereum and folder

I am a beginner at setting this up and I used a youtube tutorial to download Mist. The problem is it's not syncing the blockchains. I've tried to debug this by going to users/appdata and inside the ...
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2answers
823 views

Start Mining with Mist

Initially, the regular sync would not download the last 200+/- blocks or so. I was told to switch to light sync where it finished. I then read that to start mining real ether on the main network, I ...
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1answer
91 views

how to find if a Tx hash is in pending state in ethereum mainnet after web3j fastTxMgr timeout

I am using QueuingTransactionReceiptProcessor() with callback accept(). DEFAULT_POLLING_ATTEMPTS_PER_TX_HASH is 10 and POLLING_FREQUENCY is 15000. That gives nearly 3 min wait for network to ...
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1answer
22 views

call contract function without a fullnode?

I have a contract that I deployed a while ago. My mist is like 6 months behind and I don't even think I have enough HD space for it to catch up. I can still launch it anyway to get contracts and ...
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2answers
3k views

How can I get notification from geth when I receive ether?

I'd like to get notification from geth when my account receives ether. I'm thinking to type api command eth_getBalance in every minute, in order to check if my account receive ether or not. However, I ...
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1answer
33 views

Why my tokens aren't visible to the address sent in etherscan?

I've flattened the code and fixed the warning. But the problem with the contract is that the tokens are not visible in the addresses when searched with etherscan but when I try to add through Metamask,...
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1answer
450 views

Ganache (UI) save blockchain

I am running a testnet on Ganache UI. But when I deploy a contract and close and reopen ganache, there are no blocks and the contract deployment is gone. Is it possible to save/load a blockchain ...
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5answers
7k views

How do I “Buy” tokens on the Rinkeby (test) environment?

This is a noob question I presume. I just started with the Ethereum Wallet. No previous bitcoin experience. I have 0 ether. Can I start "playing" with the test environment ("Rinkeby" network as I ...
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3answers
49 views

Transfer ETH using third party

I want to transfer ETH from an individual address to another address. So is there any API provider who can send ETH from single Address to another address. Also If I setup Web3 in windows machine ...
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1answer
47 views

Passing ether through smart contract logic to address

I'm wanting to pass Ether through some smart contract logic then to some address set in the contract. Is this the possible, or the best way? Or should the ether be passed to contract and the receiver ...
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2answers
45 views

Auction contract privacy

I have an auction contract, where bidders bid with Ether then me (owner) select which offer is most suitable and thus this bidder is contract winner. Once the winner is selected, I send him data as a ...
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2answers
77 views

Can I download all transactions into EOS ICO as a excel file?

I would like to download all transactions into EOS ICO as an excel file. I know etherscan provides this service but it only allows me to download 2000 transactions. But the transactions into EOS crowd ...
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3answers
61 views

Auction contract question - Ether lock

I have an auction contract, where bidders bid with Ether then me (owner) select which offer is most suitable and thus this bidder is contract winner. Once the winner is selected, I send him data as a ...
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1answer
57 views

Ether in ERC-20 transactions?

I have one contract that I give tokens from a ERC20 contract implemantation. When I call the balanceOf function from the Token conract. Response me that I have x Tokens. Nice !! But when I try to ...
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2answers
73 views

How to start Geth at boot (Raspberry) and interact with it

I want to use a raspberry for IoT. For this project I need to start Ethereum (Geth) at privat chain in the boot state. When I have some data, I would like to make a transaction (contract) to store ...
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1answer
34 views

Multiple Array[] along with mapping handling

This code is running but when the same user make a bid then the bid is being replaced from the first bid and event is printing twice the same record. i want that one address make a bid and for his ...
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1answer
27 views

Saving ethers in local private testnet

I created a private ethereum tesnet using geth and it runs well on the system. However, I lose all the ethers in my account everytime I close the application. Is there a way to permanently save the ...
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3answers
27 views

Is there anyway to seize an account from smart contract?

I creating a smart contract for manage loans and I am searching some way to make me sure when the borrower defaulted pay back the loan, seizing some percentage of ether from the guarantor's account. ...
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1answer
41 views

Internet on the ethereum network

Excuse this if this is a dumb question. Would the whole internet at some scale be something we can put on the ethereum blockchain?
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1answer
36 views

Relationship with smart contract and block confirmation

I have known Bitcoin need 6 blocks for confirmation. However, In ethereum, It is different depend on clients By this post What number of confirmations is considered secure in Ethereum? It takes ...
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2answers
64 views

Blochchain Smart Contract App

Actually Im working on a blockchain application based on smart contracts that allows to buy/sell properties and paying in cryptocurrency using Ethereum and Bitcoin. I wonder I develop smart contract ...
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1answer
28 views

Cryptocurrency payments in Centralized Architecture

I'm new to cryptocurrency, so not sure if I'm asking the right question on this... I want to develop a game with traditional centralized client/server architecture, probably java application server, ...
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3answers
1k views

Difference between Javascript VM vs injected w3 vs web3 provider

It is related to remix ethereum browser. I am wondering what is the difference between them. I think Javascript VM is just test network environment where you do not need any ethereum to test. How ...
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1answer
36 views

How will I determine the number of nodes required to run my private Blockchain Network stable?

I am designing a use case where millions of users will be using it and is expecting a transaction rate of 50 per second. I am looking forward to have it on Azure.
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Is it legal create an algorithmic trading cryptocurrency fund for social groups around the globe to pool in their money?

Is it legal create an algorithmic trading cryptocurrency fund for social groups around the globe to pool in their money? What is the viability of this project in terms of regulatory compliance?
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1answer
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I am trying to add ether to one of my ethereum account using smart contract

function Execution (address _from, address _to) { _from.transfer(price); _to.getBalance(_to) += price; } 1) I think it is duplicate but i gone through but nothing helped 2) I ...
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3answers
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Go Ethereum - get the enode before starting geth

I need to get the enode of my geth nodes before I start them up.. is there any way to do this via a command other than actually starting up the node ?
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1answer
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Several basic question about difference Bitcoin and Ether transactions

Sorry for the easy questions. I was developing tools for Bitcoin and now I want to try and use Ethereum instead. Raw transaction does not contain inputs and outputs, enough balance confirm outside ...
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1answer
69 views

Calculating a minimum entry fee for a game based on typical minimum gas requirements?

I am creating a dApp that is a game where players compete for the prize pool and that pool is built from the sum of all the entry fees payed by the player at the start of the game. The player that ...
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1answer
34 views

If I create an ERC-20 token and accept dollars from people in exchange of my ERC-20 token, would this be an asset-backed token?

If I create an ERC-20 token and accept dollars from people in exchange of my ERC-20 token (with 1 token per dollar), would this be an asset-backed token or a security token? The idea is to create an ...
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1answer
245 views

How to split funds in single send transaction

Scenario: Alice Account = 2 ETH Admin Account = 0 ETH Bob Account = 0 ETH Alice wants to send 1 ETH to Bob using my application. Application will charge 0.01 ETH as it's commission and will be ...
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1answer
42 views

Calling a function from another contract is not working. But calling the function from deployed contract is working

I have a problem with calling a function from another contract. I don't know why it is not working. Contract DateTime(https://github.com/pipermerriam/ethereum-datetime) is a util for converting ...
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1answer
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Connecting my Golang Backend server with Metamask

I'm trying to build a Ticket-Office project in one of my courses at the University. The project uses a backend server (which I'm writing in Golang) and it should be able to deploy and use smart ...
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1answer
215 views

Transaction dropped. How to increase gas fee?

I sent some ether using Ledger Live, but the gas fee was too low. Id like to increase the gas fee. I was told I can do this via Ledger Etherum Wallet for Chrome. However, when I open Ledger Etherum ...