Questions tagged [wallets]
Wallets are applications on top of accounts, so called smart contracts, which manage your Ether. There are simple savings wallets or multisignature wallets.
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How I can use blockchain in my current Mobile wallet application?
I want to apply the blockchain concept for my Fiat currency wallet.
I have android app and use the nodejs in backend(API). I want to apply the blockchain in payment module to secure the payments.
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1answer
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Find keyfile of an account
I have several accounts in my Geth wallet. I need to locate the keystore file of a given account but there doesn't seem to be any connection between the keystore file names and the accounts. How do I ...
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1answer
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How risky is it to ask a dev to deploy smartcontract for you?
I’m currently in the process of hiring a dev to develop my token and my smartcontract and deploy it.
Will he need my ETH private key to do it ?
Can he change the destination of the funds once the ...
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1answer
24 views
Get ETH and Token Balances of Wallet address
How do I get a simple and fast balance of ETH and all Token owned/stored within a wallet address?
I have seen similar question and the closer answer was in this demo: http://wbobeirne.com/eth-...
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Are there any examples of ETH addresses that periodically send or receive funds at regular intervals?
I'm looking for any known ETH addresses that send or receive money at regular intervals. For example, once per day, an amount from a hot wallet might be sent to a cold wallet. Are there any widely ...
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1answer
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Ethereum fast sync and wallet balance?
I'm planning to run a Ethereum server for getting wallet balances at a specific time, which type of node should i run, fast sync will work ? or should i go for archive node ?
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Is there an ethereum android wallet where I don't have to manually add in tokens I have and just auto detects it?
Using coinomi or even metamask on chrome is quite annoying as I need to manually add in tokens I have in my account and it doesn't auto show up. Is there an android or desktop ethereum wallet that ...
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1answer
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Is possible for a contract to manage and hold different address and its balance for different erc20 tokens?
Imagine an exchange contract to store and handle different accounts for different buyers and sellers, it is possible for a contract to manage and hold different address and its balance for different ...
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Wallet Library Contract code for sending Ether
I got the following code at:
Securify: Practical Security Analysis of Smart Contracts
contract Wallet {
// fixed address of the wallet library
address constant walletLibrary = ...;
// ...
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1answer
27 views
How to export mnemonics for a specific account in MetaMask
How can I get the mnemonics from a specific account in Metamask?
I found the reveal seed words in the settings-dialog, but this seems to be something global.
Instead of this I want to export the 12 ...
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1answer
16 views
Importing Ethereum Account Private Key and Using on Different Servers
Let's suppose i have a wallet on one remote server, R-1. Is it possible to get the private key of that wallet/account and use it on different remote server R-2? I know, i can copy/paste files under ...
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1answer
48 views
How to recover/find metamask wallet file
So I had foolishly kept my metamask passphrase only on StickyNotes. This meant when my computer crashed, I had to reinstall all my programs, but all my files remained. For some reason my stickynotes ...
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How to use bip39 module in angular?
I am trying to create an ethereum wallet app using Ionic. I have tried to import bip39 node module directly in the angular project but it gives me error. Please help
import { Injectable } from '@...
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1answer
32 views
Ethereum address not find
Any one tell me how to know about which website generates this ETH address:
0x6fdd1c34b75b8638d3806adecbcbbc61ed4ed3b3
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1answer
30 views
How do i create account remotely?
I have two servers, one for eth-node, one for web api and user db.
I want to send request to create account from web server to eth server, but i see it can be created by running command like geth ...
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1answer
41 views
Asymmetric encryption with master Key
Is there any way i can derive private and public keypairs from a Master Key? The Master Key should be able to decrypt every encryption made with the generated Keypairs.
to explain a bit further i ...
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1answer
33 views
Create custom mobile wallet for my two ERC20 Tokens
I have two ERC20 tokens that I created on Ethereum.
I would like to know if it is possible for me to create a mobile application that will allow my users to check their balance (for tokens) and ...
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1answer
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How does a wallet integrate dex protocols?
How can a standard wallet with no exchange feature integrate dex protocols that allow users to swap ETH and ERC20 tokens within the app?
I know there are some dex protocols out there but which ...
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1answer
63 views
Generate Ethereum address with private key
How can I generate ethereum account address and private key that works on ethereum main network using web3 in nodejs?
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How to integrate Dapper Wallet smart contracts with web app?
Dapper Labs who are the creators of Cryptokitties recently released their own wallet which is run by smartcontracts. They have open sourced the code:
https://github.com/dapperlabs/dapper-contracts
I ...
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1answer
21 views
How to differentiate a smart contract from a common wallet?
Having an Ethereum address, I need to check whether it is a wallet or a token (ERC-20 contract).
How to check? (I need to implement it with Web3js.)
Ideally, it should also reject contracts which ...
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How to access my wallet with a mnemonic phrase in mycrypto.com desktop app?
So here is the case:
I downloaded mycrypto.com desktop app and created a mnemonic phrase there. After typing in the phrase it allows to choose a wallet from many different wallet numbers (addresses ...
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1answer
98 views
Ropsten Test Network
I have created a test token and deployed it on the ropsten test network. I have the full balance in my ether wallet. My question is how can I transfer this token to other wallets? How can I configure ...
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Load accounts to truffle
I'm using truffle v5.0.14 to handle my contracts.
All was well while developing with ganache, but when I wanted to deploy to the real network (a private one) I have problems with the account.
The ...
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1answer
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Mobile wallets for test eth?
Can anyone suggest mobile wallets (both IOS and Andriod) that supports testnet Eth? Jaxx used to (or at least the IOS version used to), but doesn't look as though it does now.
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Could we know if an address contains a specific token via Etherscan API?
I tried this, http://api.etherscan.io/api?module=account&action=txlistinternal&address=0x2c1ba59d6f58433fb1eaee7d20b26ed83bda51a3&startblock=0&endblock=2702578&sort=asc&apikey=...
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1answer
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How to choose contract address and wallet address
When you start an ICO, to receive a fund from people for your ICO, how do you choose the contract address and your wallet address to receive ETH collected for your ICO?
Thank you.
And excuse me for my ...
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Account & Block Polling not happening properly for the DApp in Trust Wallet Browser
my DApp works fine in desktop/laptop using metamask which polls the accounts and blocks (1500ms and 3000ms respectively), as set in the drizzle options. But the same DApp when I open in trust wallet ...
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Why a buffer is required in the process of creating keys from the seed
This hdkey library is creating a Buffer in the process of creating keys as an example.
var HDKey = require('hdkey')
var seed = '...
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1answer
359 views
Can someone explain the meaning of derivation path in wallet in plain English (such as m/44'/60'/0'/0)?
Like m / purpose' / coin_type' / account' / change / address_index
which gives say a value of m/44'/60'/0'/0
What is the meaning of "m", purpose, coin type, etc.
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1answer
27 views
Contract gives erc20 tokens based on an event, to an empty wallet
I have a new wallet address and no ETH.
I want to be able to request an amount of 10 erc-20 tokens. Because I do not have any eth on this wallet, I want to be able to get the tokens onto my wallet ...
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1answer
37 views
Is it possible to transfer tokens from one Multisig Wallet address to another Multisig Wallet?
First, the multisign wallet has a number of tokens which I want to transfer to another Multisig wallet.
Is it possible? If yes then how?
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1answer
460 views
ETH wallet error
I want to download the ETH wallet and make light synchronization on my PC. I downloaded ethereum wallet, but after launch, the Checksum mismatch in downloaded node crashes! MD5: 308 ... Please install ...
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2answers
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Create multiple tokens and manage multiple wallets from the platform
I'm new to blockchain and Ethereum, I currently started researching about to work on a new project.
I wanted to ask for advice on what should I use or what it will fits better for my use case:
In my ...
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1answer
34 views
Why Ether balance is 0 after 5 airdrops?
I created an ether wallet to join some airdrops and 5 of this airdrops sent me tokens but in my ether wallet the balance is 0 (zero). I don't understand why.
I was searching tutorials but I could not ...
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My MetaMask is not loading token data, what is a mobile app that can import the MetaMask Private Key?
It's not loading any of my tokens for some reason for Metamask. I can extract the private key from this address. But what is a mobile app that can import a ETH private key? And is there one for ...
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1answer
42 views
How should one approach the signing of ERC20 token transactions with an offline device?
I use an offline PC as a cold wallet. It works in combination with 2 USB drives: the 1st has Tails OS; the 2nd has my key files, a copy of MyCrypto desktop, and my encrypted account info. I can sign ...
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1answer
56 views
Account address in ethereum wallet already existed
My etherum got stolen today
I have hosted my own ethereum fast node. The node wallet has multiple account. I have created a mini app with api to create new account(without passwords) for users, also ...
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How does a wallet make sure that it restores all the keys from mnemonic phrases?
I am building a wallet that complies with BIP32, BIP39, BIP44, and EIP55.
It should be easy to restore keys if a wallet owner generates keys in sequence, but in my understanding, they can create a ...
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1answer
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How to update the balance of a wallet user when there are two competing chains?
I am building a wallet, and I have a question about uncle blocks. Let’s say our user sends a transaction, but there are two competing blockchains. If they both include her transaction, no problem. We ...
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1answer
112 views
Mobile android app that can import a Metamask private key?
I'm having some issues sending out from metamask and getting failed transactions. I think maybe I should use another app on android if possible. What android wallet apps can import a Metamask private ...
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2answers
179 views
How to add an address for which I have the corresponding private key into MEW?
I'm quite new to Ethereum, so, pls, forgive me if I say something wrong.
How can I see the balance of one already existing address, for which I have the corresponding private key, in MyEthereumWallet?...
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1answer
98 views
Where is the wallet location after save with web3?
I want to create a wallet similar to Metamask with Web3.js library. So far I have been playing around with some of the commands.
The point is after I create my wallet with web3.eth.accounts.wallet....
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2answers
72 views
What is deference between wallet address and account address?
I'm new in Ether world. I want to make mini Crypto exchange site with 2 coin ETH and BTC. What is deference between wallet address(maybe It's called Main Ether address) and account address ? or it's ...
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How to create a signed ethereum transaction between two wallets using JSON rpc in a CURL command?
I am new to blockchain. I created 2 wallets using MyEtherWallet. When I use MyEtherWallet to create transactions to transfer Ether between these two wallets (on testnet), it works.
I now want to ...
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Should Ethereum wallet need to be imported to a node to send eth from it using CURL JSON rpc?
I created 2 wallets using MyEtherWallet. Noted down the private key, public key pairs. If I then use one of the wallet's public key as the from address and the public key of the other wallet as the to ...
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3answers
130 views
Ethereum wallet Vs Ethereum account?
I created an Ethereum node (geth) and this automatically created an Ethereum account. Is this account an Ethereum wallet? I then created 2 other accounts using personal.newAccount() command. Are these ...
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SignTransaction with a private key and sendTransaction with an other account
is it possible to sign a transaction with Alice private key and send the signed transaction using Bob account ?
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1answer
166 views
Ethereum HD address generator
I'm writing a library for Ethereum BIP44 address trees and comparing it against https://iancoleman.io/bip39/ using the same mnemonic phrase.
Given this mnemonic (just a test)
report dash combine ...
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1answer
36 views
ERC20 Token management in a CEX
Imagine I create a new account on lets say KuCoin. I create a ether/erc20 address and I send an amount in ERC20 tokens to that address.
KuCoin then sends that to their mainwallet. How do they do ...
