9

If you want to send a transaction using a full node (you mentioned Geth and the CLI), the full node must be in sync You are correct that your alternative is to use a light wallet such as Jaxx


8

I see what happened. 1ETH was transferred: from 0x2bF0011e4da5a841CE9459c0995Bb2646c4f1D21 (coinbase) to 0xd08436533f63b1342fB89198F963acD8589657AE (intermediary address) with a gas cost of (21000 * 0.00000002)ETH https://etherscan.io/tx/0x3d2218451e3b77218d1be91589b8be6832faa0a53d55f40ebd6f58d72e63d26c then, from this intermediary address, there was a ...


7

In the end, you simply need to sign a transaction using the private key to that account and broadcast it to the network. There are a variety of ways to do so, depending on your skill level. GUI Wallets like Jaxx, MyEtherWallet, Exodus, Mist. Use a library like ethereumjs-wallet or ethers.js. You can broadcast any signed raw transaction via https://...


5

eth_sendTransaction can be used for sending Ether, for creating contracts and calling contract function. It all depends on the parameters. For just sending Ether, you'd want to fill the value, to and from fields. For creating contracts, you'd leave the to empty but fill in data. For calling a contract function, you'd fill in both to and data, and optionally ...


5

Based on an answer by user @Clovis: npm install eth-lightwallet node >var lightwallet = require("eth-lightwallet") >var upgrade = require("eth-lightwallet/lib/upgrade") >var jsonStr='contents of ./app/users/admin/*.json file' >var newJSON >upgrade.upgradeOldSerialized(jsonStr, , function(err, tmpJSON) {newJSON=tmpJSON;console.log(newJSON);}); ...


4

Use https://www.myetherwallet.com . You don't need to download the blockchain for this to work. It's meant to use client-side JavaScript. See What is the recommended way to safely store Ether? for more details. Also search this site for "MyEtherWallet".


4

If I have go ethereum and ethereum classic nodes & their respective wallets running on my server, is it possible for me to transfer/ convert one cryptocurrency to another? No, that's not possible. Just as it's not possible to change - or, specifically, transmute - silver into gold. How does exchanges like bitrex allow sell and buy different coins? ...


4

There is no way to cancel the transaction (even if you know the tx hash) It is most likely pending for a long time, because of the low gas price. It might take you a few days until your transaction gets through. If you know your transaction's gas price is under 3 it takes a long time. For current gas prices see here: https://www.ethgasstation.info/


3

If you sent a token to a contract address there’s no way to get them back even if the contract’s owner wanted. Unless said contract that received the tokens had implemented a function that allows it to transfer received tokens, they are lost and stuck.


3

I am sure you would have resolved it by now, but I am just putting an answer here for someone who lands here seeking a solution to this question. Well, to see any new ERC20 tokens under the TOKENS tab on MetaMask wallet, first you have to add the specifics of that token manually. This post explains it here for EOS tokens. You need to do the same for TenX ...


3

I'd recommend using Parity if you want a local wallet https://ethcore.io/parity.html , recommendation is based solely on its sync speed. is there any possibility to use any online wallet instead? Yes there is. You could use something like https://www.myetherwallet.com/ . and if yes how to import my ether other than transfer? You can just import your ...


3

It's different, but only slightly more complicated. Transactions from EOA (externally owned accounts, e.g. private key signs a transaction) have a destination and an amount. The exchange or service can monitor the mempool and see that the transaction is to their address and let you know "hey, we see your transaction, we're waiting for it to be mined and x ...


3

The other answer is correct. You can’t do it the way you’re suggesting. But there is such a thing as a bridge. For example ETC Relay (http://btcrelay.org) which allows you to lock bitcoin on the Bitcoin network, and then prove to the Ethereum network you’ve locked your bitcoin, and then use what appears to be a token on the Ethereum as much as you want ...


3

This line: recipient.transfer(amount); transfers amount wei from the contract's balance to the recipient. This line: recipient = msg.sender; means that the recipient is the account that called the function. So when you call the function from the address 0xca35b7d915458ef540ade6068dfe2f44e8fa733c, with the parameter 10, that address will receive 10 wei, ...


3

As stated by Thomas and Raghav your problem is in the method forwardAllRaisedFunds that uses weiRaised to transfer funds out of your contract, if that variable has a value larger than available the transfer will fail. There is a trick to increment the balance of a contract without executing the fallback function. If you selfdestruct a dummy contract and ...


3

This is a limitation of ERC20. When Alice pays Bob, she sends a transaction to the token contract to make an accounting entry. There is no standard method for the token contract to inform Bob. The allow/transferFrom flow resolves it with a 2-step process - first authorize Bob to take from Alice, then inform Bob. Since Bob is in the loop, Bob can do what ...


2

You could use https://www.myetherwallet.com/#send-transaction to send your funds to poloniex Follow these instructions: 1-Find your keystore file. (%appdata%/Ethereuem/keystore in windows). 2-Open MyEtherWallet and go to the “Send Ether” tab. 3-Select your keystore file or enter your private key. 4-If a password appears, enter your password and then ...


2

I recently found this one out, but there is no checksum - so enter carefully or use a namereg according to Vitalik: You're not meant to use ether addresses; you're meant to use the namereg and equivalents of things like bip70. Taylor also mentioned it may be added into a version of Ethereum post homestead. I think everyone wants checksums and ...


2

Adding to @manuhalo's answer, here's the withdrawal example in Solidity docs: This is an example of the withdrawal pattern in practice in a contract where the goal is to send the most money to the contract in order to become the “richest” contract WithdrawalContract { address public richest; uint public mostSent; mapping (address => uint) ...


2

I assume you want to know what the part in bold means. If that's correct, essentially store the value that a recipient is owed in a mapping (i.e. from address to amount), then have a withdraw function that can be called by the recipient, which checks the mapping to see if the caller has any "credit" and transfers that amount to the recipient. An example is ...


2

Once a transaction is final on the blockchain, there is no way to cancel or reverse it. However, if you have the private key for this address (regardless of chain) you do still have access to your account. Start by checking your balance on etherscan.io and gastracker.io. If you see your balance, then it is just a matter of accessing that wallet on the ...


2

You can use MyEtherWallet to access your ethers either via Keystore file or your Private key. I am sure there must be many other online wallets providing the same or maybe better functionality. You can also look at Jaxx Wallet. I have not used it personally but this wallet also provides the same functionality. PS: Please choose third party wallets at your ...


2

Summary 1ST tokens can be transferred after block 2,870,297, estimated to be Dec 23 2016, just in time for Christmas. Details Here are the variables from the First Blood crowd sale contract at 0xaf30d2a7e90d7dc361c8c4585e9bb7d2f6f15bc7: In particular, note the following parameters: Ending block endBlock = 2500012 Transfer lockup period transferLockup = ...


2

Depends on how what you set the gas limit/ price at. You can check what current prices are / network congestion are here: https://ethstats.net/ Setting a higher gas price / limit increase the probably of your transaction being mined quicker


2

Per https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md#transfer: The function SHOULD throw if the _from account balance does not have enough tokens to spend. So I'd say you should indeed use require, but don't include the _amount > 0 clause. From the same documentation: Note Transfers of 0 values MUST be treated as normal ...


2

Unfortunately there is no way that you can get your tokens back unless the creator of contract had a function which did that, as far as i can see the contract does not have any such function. Since blockchain`s are immutable and irreversible your transaction cannot be undone .


2

Don't know without looking at the transaction. You could trace the interaction on etherscan.io by looking up the transaction with the wallet 1 address in the search box. Just follow each step in the transaction forward. If the transaction was over to an exchange, like Bittrex, then there may be fees associated with moving the ethereum over to the ...


2

I think you’re asking if the subwallet addresses can “do something” other than just accept ether even if they are not smart contracts. If that’s what you’re asking, then no. They can’t. Non-smart-contract addresses (regular accounts) can’t “do” anything other than send transactions to other addresses or receive them. If that’s not what you’re asking, ...


2

There's BTCRelay where you can confirm Bitcoin transactions. BTC Relay is a building block that allows Ethereum contracts to securely verify Bitcoin transactions without any intermediaries: in short users can pay with Bitcoin to use Ethereum DAPPs. Currently is not used very much and it has fallen behind. It is updated since at least Feb-16-2018 10:12:01 ...


2

Generally no, an address can be used to interact with various different contracts and your address interacting with Contract A should not give any special permissions to that contract with regard to Contract B. However, there are various ways to trick someone so that they think they're interacting with Contract A when really they're interacting with ...


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