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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139 views

how do you handle token value data type in database?

Ones who do exchange / Investment platforms development, all ERC20 tokens has its atomic unit and only moved by specifying value in its atomic form. for eg: 1 BuritoToken with unit decimals as 18, ...
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1answer
209 views

Best practice in 2018 to claim Ethereum presale purchase [duplicate]

I have the presale wallet and password, but went through a number of trials and just now trying to get back on my feet. I have yet to claim my presale and could really use it to help with medical ...
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131 views

how to automatically transfer funds in geth

I am trying to find a way how to automatically transfer funds from one address to another after new block is sealed. Scenario would look like this: 1. New block sealed 2. Check source account ...
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2answers
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Can hd wallets have different withdrawal permission levels?

Specifically, is it possible for a wallet to have a key which can spend an ERC721 collectible, but its child keys not?
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72 views

Is there any way to fix my mistake when setting up a Multisig wallet?

So I am an idiot... I know. But feel free to tell me I am. When I set up my Multisig wallet with gnosis I made a fatal error. I created a Rinkeby Test wallet. I did a test transaction and it all ...
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1answer
160 views

How to give a non-zero balance to a contract at time of deployment using Remix?

In case we want to deploy a contract by web3.js we can easily determine the balance of the contract at time of deployment as follows: const thisContract = new web3.eth.Contract(abi); thisContract....
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1answer
239 views

Possibility of transferring “real funds” and “real ether” on “ testnet ”?

According to THIS ANSWER (by user "eth") : (1) Testnets are "play money" so that you can try out applications without spending real money. And According to THIS WEBSITE : (2) Tobalaba ...
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2answers
4k views

Where does metamask store the wallet seed? (file path)

I have a Windows installation that cannot be booted anymore. I'd like to copy the file containing the Metamask wallet seed to another machine and have that Metamask installation use it. The same ...
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3answers
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How to generate multiple eth-addresses from one private key? [duplicate]

Is it possible to generate different multiple eth-addresses from one private key? The goal is to implement a JavaScript service that will allow a user to buy a subscription using cryptocurrency. ...
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571 views

How can I count ETH active Wallets and how can I count ETH deployed Smart Contracts?

I am doing a research and I would need to know the following info: Total number of Wallet Addresses Total number of "Active" Wallet Addresses Total number of Deployed Smart Contracts (is it a subset ...
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333 views

How can I create a wallet and display the address, public and private key using web3js?

I am using this as my source for web3js: <script src="http://raw.githubusercontent.com/ethereum/web3.js/0.16.0/dist/web3.min.js"> </script> In my HTML I want to display the account's ...
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1answer
185 views

How can I provide an ethereum public address to each user registering on my website.?

is it possible to do using web3.js for a dapp that is going to be run on mainnet.? I have a requirement to assign valid ethereum address to each user who are registering on my website. I want this ...
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198 views

How wide is wallet support for a data field in a URL?

I'd like to be able to share a URL (or a QR code thereof) prompting the user's wallet to open to call a function, and pass in some parameters. There are a couple of EIPs - EIP67 and EIP681 - with ...
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8k views

The difference between contract address and wallet address

Disclaimer: this is a rather long question. To my understanding, contract address and wallet address are two profoundly different concepts, with the only thing in common being the fact that they are ...
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160 views

Best way to process withdrawals for ETH?

New to ETH. Designing a web-wallet type of service. Currently generating new deposit address keypairs via web3.eth.personal.newAccount(). Iterating each block via web3.eth.getBlock(), and scanning the ...
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72 views

Missing seed for metamask — how can I transfer tokens?

I have lost my seed for metamask wallet. I'm very new to crypto. I have ERC tokens in my wallet, address and password are saved, and the hash generated during transfer is saved. Can I transfer my ERC ...
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370 views

Which wallets lets you generate multiple ethereum addresses?

Is there a wallet that lets you generate multiple ethereum wallet addresses? I don't like the fact that I only use one address and that everyone can see what I have. Or are there other ways to keep ...
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1answer
79 views

What programming language or framework should I use to automate wallet creation and transfer of tokens when people send payment via paypal? [closed]

If one were to create a site where users could sign up and transfer fiat currency to the site in exchange for the amount of ERC20 tokens equivalent to the fiat currency, how would they do it? How can ...
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1answer
33 views

Can I add my own fields to JSON files in the keystore directory?

I need to add a few fields to JSON v3 wallet file, can I do it ? What is Ethereum's policy on this? For example, to add account name I would do something like this: { "address": "...
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1answer
61 views

Transaction fees in ethereum [duplicate]

I have created an ERC20 token, but whenever I want to trnasfer it, transaction fees is deducted in ethers. But I donot want to but ethers. Cant the fee be deducted in terms of my custom token? Thanks
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244 views

Creating a new UI for a token

Is it possible to create an user interface for a new token created with ERC20 and metaMask? If yes, how is it possible?
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1answer
296 views

How do I update Geth when using Ethereum Wallet on a windows 10?

How do I update Geth to the latest version(1.8.10) when I am using Ethereum Wallet on a Windows 10? It is not prompting me for an update to Geth as I skipped it the first time Ethereum Wallet was ...
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2answers
611 views

Creating a new wallet mobile application for newly created crypto currency

I am doing as a Intern in Apogee Tech Global in Bangalore on Blockchain for three months. My commitments is to learn solidity language, build smart contracts, learn Ethereum and Hyperledger. I learnt ...
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162 views

How does an Import Wallet work in Ethereum?

How to provide import wallet option in Ethereum bloackchain? How does is imports/ how import wallet works?
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1answer
61 views

About Ethereum password

I joined Ethereum 's ICO in 2014. But I forgot my password. I have a keystore file but I do not know my password... So I am thinking of brute force attack on my wallet. Please tell me the password ...
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3answers
1k views

How to use web3 in a mobile context (ionic)?

Hello I am building an ionic app that send transaction to ethereum smart contract. in web I used metmask but what is the alternative for mobile? is possible to run an ethereum client in a mobile?
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226 views

Detecting contact internal transactions

Say I have a list of addresses whose transactions I want to monitor. Detecting regular ethereum transactions is easy. Detecting internal contract transfers looks much more complex. If my research ...
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425 views

Is possible to continue the BIP32/BIP39 algorithm from a Pk and Sk pair and “climb” to the mnemonic seed?

A few days reading about the BIP algorithm and the generation of the key pairs. Found that on the BIP 32 Paper: Child key derivation (CKD) functions Given a parent extended key and an index i, ...
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1answer
225 views

Best way to deploy a ERC20Token to the mainnet

I'm planning on deploy a ERC20 Token Contract to eh Main-net. I've tested it on both Rinkeby and Ropsten, deploying from different platforms. Parity,Ethereum Wallet, Remix with metamask. I wanted to ...
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36 views

Importing a wallet file

Need help restoring my account. Briefly: I had to delete my geth folder as it was getting to 400gb. I DO HAVE a my original keystore folder and password. I upgraded to MIST v10 which syncs to 99% &...
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1answer
36 views

Deposit and withdraw digital currencies through external wallet

I am going to try with GDAX. In this article, there are several steps You can fund your GDAX account by sending digital currency from another exchange or wallet provider. Go to gdax.com/trade Choose ...
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1answer
62 views

Account management risks of booting into Tails OS from USB using a “partially air-gapped” Linux PC

My threat tolerance is around a 3 out of 5 on the paranoia scale. What are the practical account management risks of using a flash drive loaded with Tails OS to boot into a Linux PC, which will only ...
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1answer
1k views

Restore wallet in Exodus using JSON file

I've a wallet file in the JSON format with address, cipher, ciphertext, salt, etc (version 3). How can I restore it into Exodus wallet? In Developer menu I can only see Restore from 12-word phrase......
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1answer
135 views

Viewing token contract address in mist wallet

My question: How do I view the Contract address of a token in the mist wallet? Elaborating: Lets say I deploy a new token on the mist wallet. The Token is then visible in the account that I used to ...
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281 views

How to export extended (master) public key from MetaMask

I want to export extended public key for watch-only access to all ethereum addresses in the MetaMask HD wallet at once. It's very usefull for tracking of all portfolio/wallets in one place, especially ...
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2answers
1k views

How to develop an online ERC20 wallet

I'm looking for any tutorials on how to create my own token wallet. Example: Create token for website purchases I implement my own wallet for token and allow ppl to buy with token and redeem ...
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2answers
719 views

geth: command not found (Ubuntu)

I have Ubuntu 18.04 installed, and I just installed Mist. To my understanding, installing Mist should have installed Geth as well, but when I do the command geth in a terminal, I receive geth: ...
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1answer
875 views

Two different owners on same computer with MetaMask Wallet?

Is this possible? I have a MetaMask wallet working fine. A friend w/o computer - can I set him up with MetaMask on my system - but obviously not my account. If so, how?
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1answer
306 views

one Private Key with two different ERC20 tokens

I have an ETH key in my wallet. It has BAT and ELF tokens in it. That's why I can not send or trade this one key with two different tokens (in this wallet). How can I turn this one key into two keys? ...
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3answers
116 views

Can we create an ethereum address with a public key of my choice?

We suppose that I have a private key I used to sign my data with it before the comming of ethereum. is't possible to create an ethereum address based on my existent public key ?
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116 views

Library for create ethereum wallet

I want to create an ethereum wallet that is erc20 compatible on my client side. It should allow user to enter his own password and generate private key, recovery phrases and utc file. I try to ...
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3answers
395 views

How do I transfer Ether from multiple account to one account?

I have a vast amount of Ethereum wallets, all packed with Ether. I need to transfer all the Ether to a single account. I don't want to do it manually. Is there a way to script it or use a smart ...
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1answer
596 views

Parity Syncing Forever? 1 block per second ???? is this the future of Blockchain?

trying to sync parity wallet from last 30 days its taking forever to sync to the current Block Upto 4.4 Million blocks it took like 2-3 days but from then to 4.5 Million its taking like 1 Block/Sec ...
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120 views

how to decrypt aes 128 keystore offline with password [duplicate]

i want to create dapp like cold wallet on which i can access my sign transaction with private key but in order to get private key for each time i need offline code or script to decrypt my keystore ...
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1answer
368 views

Someone placed 7.77 VIN tokens into my MyEtherWallet account according to EtherScan, what can I do?

I use MyEtherWallet and a Ledger for my tokens. I check today that in Etherscan that 15 days ago some different address placed 7.77 VIN tokens and sent them to my MyEtherWallet address in my account ...
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2answers
598 views

Delete/hide ETH address on Ledger Nano S

Is it possible to delete / hide one of ETH addresses that my Ledger Nano S is providing after logging via MyEtherWallet? I know ledger is allowing me to use lots of addresses. It is displaying the ...
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1answer
228 views

which wallet is usable with ganache test-rpc?

I tried metamask, but unable to send ether between accounts because metamask is trying to estimate gas and gets stuck :( myetherwallet doesn't save my seed so I need to enter it all the time
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85 views

Generate timed transactional deposit wallets

I am looking at developing a service that can take a payment in Eth and return a erc-20 token to their desired address. I want to generate a new address per transactional user. What would be the ...
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1answer
91 views

Integration of Metamask with Faucet

Is it possible to create a UX where you can just press a button and get your Metamask wallet refilled from a faucet ( for example for rinkeby testnet). Currently the process is very cumbersome where ...
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457 views

URGENT-refinding the private key in metamask

when I added the extension on a different laptop and I tried to access my account, metamask asked me to insert a new password and to confirm it OR to insert the 12 words phrase. I had not the 12 words ...

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