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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218 views

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
61 views

Ethereum address not find [closed]

Any one tell me how to know about which website generates this ETH address: 0x6fdd1c34b75b8638d3806adecbcbbc61ed4ed3b3
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1answer
62 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
62 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
206 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
27 views

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
462 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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108 views

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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46 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
347 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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2answers
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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
181 views

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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31 views

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
109 views

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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0answers
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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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36 views

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
5k 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
45 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
94 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
2k 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
98 views

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
44 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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159 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
90 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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195 views

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
29 views

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
265 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
1k 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
362 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
334 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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3answers
868 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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45 views

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
398 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
63 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 ...
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3answers
36 views

Why I can not trade coins stored in cold wallet?

There are two kinds of wallet hot wallet and a cold wallet. Ideally, people keep minimum balance for trading in a hot wallet and most of the coins are stored in cold wallet. I am wondering why coins ...
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37 views

Myetherwallet Balances?

I was testing on (Ropsten) Myetherwallet, everything was fine yesterday morning, then that evening, my balances (Ropsten Ether and Tokens) would not show. I was getting "(error_21) Not a valid ERC-...
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1answer
16 views

Does go-ethereum encrypt new wallets by default?

And if so, is it considered safe to store and encrypted wallet on a unencrypted drive? I know there is a process to lock and unlock accounts with a password, but how difficult is it to brute force ...
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1answer
285 views

User ether.js mnemonic for bitcoin

I'm using Ether.js for my react native app to create mnemonic. i want use Wallet.fromMnemonic(code, path) to get key pairs but when i send bitcoin Derivation Path i get and ethereum private key which ...
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2answers
590 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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1answer
166 views

Error: Returned error: VM Exception while processing transaction: revert

pragma solidity ^0.5.0; contract MultiSignatureWallet { uint constant public MAX_OWNER_COUNT = 2; event Confirmation(address indexed sender, uint indexed transactionId); event Revocation(...
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1answer
41 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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1answer
429 views

HD wallet public to public key derivation and non-hardened keys

This question is about hierarchical deterministic wallets and the bip32 standard which, as I understand it, allows you to deterministically derive child private/public key pairs from a master seed ...
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1answer
536 views

Changing “proxywallet” in “local.config” in ethOS, but I receive mining reward in previous address

I've changed my proxywallet from proxywallet 0xB4... to proxywallet 0x5B... in the local.config file. However, I received mining reward again in previous address: 0xB4... . Do I need to restart the ...
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0answers
39 views

Is there a way to figure out if 2 (or more) address is belong to same HD Wallet account or not?

I'm a new to Wallet concept, I know that a HD Wallet structure is created from a root seed as Mnemonic Code, from that HD Wallet help to generate child keys as the meaning of multiple difference ...
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1answer
65 views

Ethereum Decentralized Wallet Service API [closed]

With the decentralized nature of the blockchain space it makes sense for this to be a thing. I need a wallet API service that does not store private keys, allows our servers to create a wallet & ...
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1answer
74 views

How to wallet sync with blockchain network

I'm newbie, I have question: when a wallet connect to a network blockchain, does it connect to ALL of node in network or SOME node? And how to a wallet sync blockchain ? Thank you very much!
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What are the available ethereum/erc20 standard wallet on China's appstore?

Heard that ImToken wallet is removed from Chinese appstore ; Am looking for a ethereum based wallet that could be downloaded from the Chinese appstore.
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1answer
68 views

Watch an Ethereum address for incoming payments

I want to watch a set of Ethereum contracts and be notified (preferably by email) when a contact receives a payment to it. I prefer me not to write my own software for this and not to install it on ...
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1answer
302 views

Is there an Ethereum Testnet Android Wallet?

I am looking for a testnet-specific Android wallet app to load with a few Ropsten test Ether, for a web app I'm building. But for the life of me, I cannot find such an app for Ethereum. For Bitcoin I'...

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