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 to get the type of transaction (Send/Receive/Approve/Swap) and the ERC20 tokens involved in that transaction?

I', getting to know the Ethereum technology (so rookie level). By far, with the free APIs (etherscan.io, ethplorer.io, coingecko) I have been able to build a "watch wallet". It looks like ...
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2answers
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Ethereum Wallet - Hangs at startup + 403 ws error

I have installed the Ethereum Wallet, Ethereum-Wallet-win64-0-11-1 (zip file), as described in the book. When I start up Ethereum Wallet (testnet Ropsten, syncmode “light”) the wallet seems to load ...
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How to ensure the authenticity of the block header obtained by the light node

When I join the Ethereum network, I ask for block header data from neighboring nodes. How can I guarantee the reality of data?What if the neighbors conspired to give me bogus data?
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Deploying Smart Contract to Rinkeby

I'm getting the following error when I try to deploy my smart contract to Rinkeby using Truffle: Error: Unknown arguments format passed to new HDWalletProvider. Please check your configuration and try ...
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How do I get started with Ethereum in practical terms?

I've read on the official website. I understand the "overall idea". I also think I can buy Ether, so that's also not what I'm asking. I'm simply wondering how I actually start using it. The ...
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Ethereum wallet address

Hi Guys I sent nearly 1000 $ to a contract address the the project didn't take off. To get a refund i was told to send 0 ether to the contract address with some data in the data field. But I used ...
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2answers
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I need a smart wallet contract (for testing)

The testing specification for my current task requires Create 50 smart wallets that can hold M+ tokens. Thus I need a smart wallet contract. Please give me source of a simple smart wallet contract. It ...
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Geth service gets killed on multiple concurrent requests of web3.personal.importRawKey function

I have an ethereum-POA node setup on a VM having below mentioned configurations. Using NodeJS Web3 client, I am trying to create new wallets using the web3.personal.importRawKey function. VM ...
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Find the private keys to a derived ETH address from BIP39 mnemonic

I'm trying to find the private keys to a derived ETH address from a master BIP39 mnemonic / 12 word seed phrase. I can import the seed into MetaMask and can see/access the funds for the primary/master ...
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1answer
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web3.py ( web3.exceptions.CannotHandleRequest: Could not discover provider while making request: method:eth_call ) --help

proveedores= ['https://mainnet.infura.io/v3/KEY_KEY','https://ropsten.infura.io/v3/KEY_KEY'] from web3 import Web3 , HTTPProvider, IPCProvider, WebsocketProvider from web3.auto import w3 web3= Web3(...
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web3.js without installing a browser extension

I want to make users not having MetaMask installed to use my dApp. I thought MEWConnect will do the thing, but it requires installing an app at the phone :-( Any alternative way? For example, MEW ...
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Securely integrating a light wallet into a dapp — Thoughts?

I asked a leading L2 provider whether their solution would include key management to break out of the external signing paradigm (2-factor auth, browser extensions, hardware wallets etc.). His ...
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medalla testnet launchpad requires metamask or similar

Following the official Medalla launchpad at https://medalla.launchpad.ethereum.org, at some point you need to connect to a wallet and the only options are MetaMask, Portis and Fortmatic. Why is this ...
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1answer
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Importing Parity/OpenEthereum private keys to Geth: got zero balance

I have to migrate to Geth from Parity/OpenEthereum as the latter completely stopped syncing for me. First of all I tried to copy one of my private keys exported with parity_exportAccount() - which ...
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is it possible to get gas refunded if a smart contract call fails to complete?

I am using trust wallet, and whilst using a number of exchanges (for example - uniswap, balancer liquidity pool) I have paid gas prices without the exchange actually taking place. Is it possible to ...
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Ethereum geth mainnet blocked on “Looking for peers”

I installed Geth for setup a ethereum node on my linux server and use it on my RPC API. The problem is, Geth is posting "Looking for peers" forever, I don't really understand why. This is ...
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Import accounts on Ethereum Wallet is disabled

The Import accounts option in File is disabled. I am using the Ethereum-Wallet-linux64-0-11-1, latest version (now). After I reinstalled the OS, I tried to import some accounts. I copied the accounts ...
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1answer
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MEW keeps putting in QSP contract address for receiver instead of address I've entered

I'm trying to send Quantstamp (QSP) to Binance offline, using MyEtherWallet. In mew's offline helper... when I paste in the signed transaction (into the online MEW, as received by offline version of ...
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1answer
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How to create forwarder wallet in Ethereum?

I have more than one ETH wallet. I want to automatically combine these wallets into one wallet. For example, when I get an ETH in wallet 0x1, I want it to automatically transfer it to wallet 0x2. Can ...
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Wallet and user relation

I want to build a de-fi webpage that receives ethereum from users, so i want to store all ethereum within a smart contract and want to know how much ether does a user has. if i create a new unique ...
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1answer
41 views

As of 2020, what are the community-trusted desktop cold storage wallets?

I'm looking to transfer some ETH from markets to a wallet. I see MyEtherWallet.com has a way to be run in a cold storage environment. However, the fact that they're Twitter account got hacked makes me ...
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is there a way to create a ens ethereum address to be readable one using cryptography? [duplicate]

I would like to generate address which are readable to people using cryptography and supporting ethereum transactions without problems, I don't want to use ens ethereum because I will have to pay for ...
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1answer
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Depriving Address of my own wallet created? [closed]

I want to derive Address of my own wallet developed using web3 frameworks without looking onto etherscan for the Address. var Web3 = require("web3"); var url = 'https://ropsten.infura.io'; ...
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Deliver a dapp to a client, how to set as owner?

So, as a freelancer that wants to make a smart contract for a client, how do you set such client as the owner of the contract? Would it be setting the owner variable to the eth address of the client, ...
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I had version uped my metamask on firefox. It makes my metamask account renewed. I want login my old metamask accout

I had version uped my metamask on firefox. this version up makes my metamask account renewed. I want to login my old metamask accout. I dont have my old acccunt private key or JSON for import old ...
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Ethereum was withdrawn from my wallet to the wrong address

Ethereum was withdrawn from my wallet to the wrong address. I am using metamask and decentralized wallet application. The keystore file is stored in Apple could storage. Mnemonic did not use or save ...
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web3.eth.accounts.wallet.create() works on desktop Chrome but not on mobile

The following lines of code work (a generator function of redux-saga in my React app) on desktop Chrome. However, it does not work on desktop Safari, iOS, and mobile Chrome (on Android). Did not works ...
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If I have several wallets with the same address, how to deal with nonces?

I access Ethereum from several wallets. Some of the addresses are present in several wallets at once. I discovered that nonces should always increase. (Right?) Then if I send transactions from several ...
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1answer
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Cold wallets & dapps

I am new to ethereum and curious about interacting with dApps while keeping a private key in cold storage. I like the idea of keeping the private key for an Ethereum wallet on an air-gapped computer. ...
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1answer
77 views

How to forward tokens without paying a gas [closed]

I'm working on a project and I need to know if this statement is possible: I have 10 registered users. Each user has an erc20 wallet. It is possible that when user A, C, E, or whoever deposit their ...
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42 views

How can we lock ETH in user wallet without escrow contract?

I know the logic of using an escrow contract in which 2 or more users send their wagered ETH to a smart contract acting as escrow proxy, and then after some decision contract executes we release the ...
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Recover all the account under Mnemonic using ethers.js

I am new using ethers.js const { Wallet } = require('ethers'); const wallet = Wallet.fromMnemonic('one two three four ...'); I want to use that code to recover all the accounts from that Mnemonic. ...
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Can send ether from geth account to wallet, but not from wallet to geth (invalid sender)

geth is running as a private network. It has its own accounts, stored in its keystore. One of them is used for mining. The others are funded with ether. MyCrypto wallet (desktop version) is connected ...
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1answer
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Alternatives to MEW for advanced users

I am looking for an alternative to MyEtherWallet. I am facing some issues with MEW, thus I am looking for alternative, preferably with more advanced functions - like for example allow me to "...
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Setting up a desktop wallet with a private network on geth

Disclosures: I've never set up a wallet before, and am new to geth. I'm not worried about security right now. My goal is to set up several wallets on my private chain (if possible) in order to learn ...
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1answer
144 views

What are the odds of getting same address or private-key or 12/24 set of mnemonic to 2 different people

Questions!! What are the chances that 2 people get the same set of those 12 or 24-word mnemonic?? In web3.js, there is a function ' web3.eth.accounts.wallet '... It spits out a set of accounts and ...
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In Web3, why is simply signing transactions with private key more secure than unlocking the account and using sendTransaction?

In Can anybody Point out the Difference between Web3.eth.sendTransaction and web3.eth.signTransaction?, the author of https://ethereum.stackexchange.com/a/73705/61096 mentions how unlocking an account ...
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1answer
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How to program a website to accept Ethereum payments

Assume I have a site and I want to give unique address to each of my users that generated by an HD wallet. If each user, send a little amount to his/her address,that it was less than transaction fee, ...
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1answer
55 views

Gnosis Wallet - Multisig not really working as multisig

I'm trying to create a MultiSig wallet for both ETH and ERC20. After doing some research, I found Gnosis, which seemed to fill my need. First I tried to download the local (electron-based) version. ...
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In EtherJs how to find account number of balance change event?

I am creating Ethereum Wallet application & I am using EtherJs for Web wallet development. When I try to listen for Balance Change event for multiple accounts then How do I find account number ...
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How secure is this memory wallet?

As we know memory wallets more specifically Brainwallet 1.0 is a failed technology. I want to know how secure is this wallet system? It uses blockchain transaction hash and passphrase to calcualte ...
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1answer
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Any email signIn based blockchain wallet APIs for integrating into web dapps & native dapps (Android, iOS)?

I'm looking for an email SignUp / SignIn based blockchain wallet which provides API for integration into web dapps and native mobile dapps (Android & iOS). During payment routine in dapps, this ...
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1answer
745 views

Transaction Failed but showing as Pending on Etherscan

So I just started using ether after the same was legalized in my country (India). I use Coinbase Wallet for my Storage of ether. I decided to shift to Metamask from Coinbase Wallet and as such ...
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What is a good wallet service for iOS applications

I am building an iOS app that rewards users with crypto tokens, just like Brave's BAT or Reddit's community points. I am trying to find a wallet service that I can integrate with my iOS app for users ...
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derivation path for ethereum?

how are you doing! I would like to know what happens if from a ethereum seed I derive a wallet using BIP49, BIP84 derivation path and then send ethereum from another wallet which is BIP32 or BIP44, ...
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Unknown Accounts suddenly appearing in MetaMask wallet…?

My MetaMask wallet has multiple accounts which I did not create. I have no idea how they there. Is my MetaMask wallet compromised? Or is this normal that MetaMask creates new wallet addresses when ...
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1answer
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Wallet transactions call functions in (ERC20) token contract to send tokens?

Firstly, thank you for helping me out in understand this. Suppose, if I have an ERC20 token contract (with all the required functions implemented including Transfer() function) deployed on the ...
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Ethereum Wallet(mist) not catching private network in windows 10

I have set these paths but not working C:\Program Files\Ethereum-Wallet and C:\Program Files\Geth I have made a private network using Geth, but when I installed the Ethereum Wallet, it is not ...
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1answer
32 views

Withdrawing an Etherium Paper wallet

Hi i have a few questions about ETH or any other Crypto currency for that matter but maily ETH as im unsure as to the methods available. I will address this in the most likley Situation.. I make a ...
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1answer
48 views

transfer ether from smart contract to my wallet

Hi I awant to transfer transfer ether from smart to my wallet so I ceated a sendEther function in the smart contract function sendEther() public { msg.sender.transfer(1 ether); } very basic ...

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