70

Hello and welcome to Ethereum! I don't know how this comment became the de-facto guide, but it's really not the best as it doesn't have any pictures and doesn't introduce you to Ethereum properly. Ethereum and digital currencies are a pretty new world and in this new world, things can be a little bit different. First, you are responsible for your stuff. ...


16

It'd probably go something like this: User wants to deposit a token to your exchange If it's the first time the user is depositing that token then this occurs: Generate a new wallet key/pair on the server side Encrypt the private key with a secret/salt only known by the server and store the encrypted private key and public address in your database, along ...


12

One way to do it is, you can use coinbase.com to buy Bitcoin and convert the BTC to ETH through shapeshift.io. Also there is kraken.com, they claims to be the best Bitcoin Exchange. The best bitcoin exchange is needed for serious and professional bitcoin traders. Bitcoin security must be impeccable. Banking relationships must be sound and reliable. ...


12

Yes, an open-source, decentralized exchange like EtherEx will avoid MTGox shenanigans. It exists on testnet currently, as it says: geth --testnet --rpc --rpccorsdomain http://etherex.github.io It is fully open-source at https://github.com/etherex/etherex From the source, you can see that there are no backdoors where anyone can get special access to and ...


11

If you refer to something like Demurrage in Freicoin, then the answer is probably no - there was no special design to discourage hoarding of Ether. Also, the argument that such deterrent is required is related to the argument about wether Ether should be considered money or rather capital stock, or something else. Additional info on Demurrage: It is ...


11

Here's an intuition. The simplest transaction in Ethereum costs 21000 gas and looks like this: {from: '0x from', to: '0x to', value: web3.toWei(1, "ether")} When you're depositing to the exchange, the exchange can watch for transactions that are sent to this deposit address. For example, for block 99 they could use web3.eth.getBlock(99, true, ...), and ...


11

According to the long list of Ethereum exchanges found here: https://coinmarketcap.com/currencies/ethereum/#markets Cryptopia appears to be the only one that has announced that it will remove Ethereum Cryptopia Ethereum trading volume is extremely small (less than 1 BTC in ETH/BTC trading volume for the last 24 hours). Therefore the global liquidity impact ...


11

Your ETH & tokens are on the blockchain, regardless of what service you use to access them. When you move them, you are sending them from one address on the blockchain to another. These are simply lines of code. Your wallet file, the user interface you interact with, the private key—these do not have funds in them. The private key gives you the ability ...


9

You should try kraken.com there are markets directly in ETH/USD or ETH/EUR and you can pay by credit card. It's also a very well known and reputable exchange. But aware that it takes you a little while to verify your credit card / id / etc. so start the account creation asap and don't wait the moment you want to buy to do it.


9

After the creation period ends on May 28th, you will be able to send DAO Tokens, similar to how you send ETH. You can send your entire amount of DAO Tokens or just a portion of them. It should be noted that with The DAO Tokens specifically, you cannot send the tokens if they are currently "tied up" in a vote. This prevents a single token from voting more ...


9

Depends on "how" invalid it is. If you send ether to a public address that does not exist (i.e. nobody has the private key for), assuming that the format of the address is correct (hex, correct length, etc), the funds are cryptographically unretrievable. The Blockchain sees it as a valid transaction but there is no private key so nobody can sign a ...


8

When buying ether, "resistance" is a measure of factors such as: do you need to have a credit card do you need to have some other cryptocurrency to make the payment do you need to provide your passport and other ID documents do you need to wait days before your account is approved and you can buy ether If you have to wait days before you can buy ether, ...


8

The closest to localbitcoin maybe Ethereum meetups. Depending on your location it could be easy and lowest fees, as the community is young and wants you to try things out. Shapeshift.io is currently the least resistance exchange, but not the lowest fees. You probably know about the exchanges such as Kraken, Poloniex, and the subreddit.


8

The first thing to check is whether the transaction shows up on a ether block explorer. Enter your bittrex deposit address in the search field in https://etherchain.org . If you see a balance,it may be that bittrex only shows you the deposits if the balance is above a minimum size.


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

My guess is that these transactions resulted in a zero token balance for the sender and started with a non-zero balance for the recipient. When you store a value, the gas cost varies: It costs 20,000 gas if you store a non-zero value where a zero value used to be. It costs 5,000 gas otherwise. But if you have store a zero where a non-zero used to be, you ...


6

Given the sordid history of exchanges in the crypto world to-date, it is not advisable to hold large sums with them. That said, the homestead update itself shouldn't make any difference.


6

Lowest Resistance: shapeshift.io Highest Volume: Poloniex or Kraken


6

Kraken Log in to your Kraken account. Click on the "Funding Tab" and then "Withdraw" and then at the bottom, "Ether (ETH)" Click the "+ Add address" button. Add a description and your ether address. No need to fill in the data field. Save the address. Click the back button. Select the adddress you just created from the dropdown. Enter the amount. Click ...


6

From where these exchanges get the current market price of ether? The price is dependent on what users are currently valuing ether at. The exchanges don't set the prices, nor get them from anywhere else. If someone who is trading on one exchange is willing to pay more than someone trading on another exchange, then the price of ether on the first exchange ...


6

Yes, ethereum smart contract can only accept ether. So if one wants to use Bitcoin to buy ethereum tokens, then you need to do something to let it happen. I have seen different approaches to this problem: Some companies do the conversion for you - they show you a special BTC address where you can transfer your bitcoins to and the company will issue ...


5

From their description, MultiSigna is not a decentralised exchange. Their primary feature is the use of Bitcoin (not Ethereum) multi-signature feature. Bitcoins are put in an escrow from which they can be released if 2-out-of-3 participants (two counterparties + MultiSigna) approve the transaction. For fiat to BTC, it means that BTC is released when there is ...


5

For example, currently, the least resistant method may be the following: 1) Attend ethereum meet up;and 2) Purchase from a trusted seller in person with cash. If you're not able to meet someone in person or you believe there are safety risks with in-person exchange, the next least resistant may be: 1) Wire funds (CAD, USD, or Eur) to Kraken (fees may ...


5

The issue is that it requires more gas (i.e. Higher transaction fee) than for sending to an account. Most likely the exchanges wallet is not providing enough gas when it makes the transaction so it fails. It of course can be done but you would need to contact the exchange to get them to allow a higher max gas on each transaction. It's still less than 2 ...


5

In this high level overview, the Etherboost team which is behind EtherDelta wrote: The EtherDelta smart contract allows you to deposit or withdraw Ether or any ERC-20 Ethereum token. If you go to the EtherDelta page, you can click on Tokens (in the top navigation bar) and see the list of all the tokens that are currently traded. As to the process by ...


4

Use a good BTC/USD exchange like Circle or Coinbase which allow you to purchase the BTC. Then you can send the BTC to an ETH exchange like Poloniex or BTC Markets where you can buy Ethereum.


4

Try increasing the gasprice. The default value was lowered with 1.3.4: https://www.reddit.com/r/ethereum/comments/48arax/homestead_release_faq/ Also, please update again to 1.3.5 as there was an issue with 1.3.4


4

Bitboat offer payment via Paysafe and Neosafe in Europe. So you buy a voucher in cash and then trade it for crypto. Paysafe is in 0000's of shops, fuel stations, search for a location here. Neosurf is in Europe, some middle East and some Africa, search for a location here. Coinimal offer more resistance but once authenticated it is painless, fees are ...


4

Ethereum developers are partly payed in Ether. Ethereum is funded by people who brought Ether at the pre-sale. It's in the interest of neither of those parties to have mechanisms against hording. Ethereum doesn't try to discourage hording. On the other hand when going to proof-of-stake Ethereum will even reward people who hoard it.


4

Briefly, ICAP addresses are safer to use, since they have a checksum which provides protection against mistyping an address. But ICAP adoption isn't as widespread currently. For mining you can use either, since a HEX address, when needed, can always be obtained from an ICAP address. More information: What is an ICAP address? Why don't Ethereum ...


Only top voted, non community-wiki answers of a minimum length are eligible