Bitcoin Sign up or log in to customize your list._ Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top up vote 5 down vote favorite 1 I am using a Mac and downloaded Bitcoin-Qt as my wallet, and it has "synchronised".However, I am unable to use this program to generate a new address.I click on "new address", and all it makes me do is enter an address and name it… Is it safe to use a website like Instawallet to "create" an address for me, and then use this address to receive coins with Bitcoin-Qt?If two different people are using the same Bitcoin address, in a client like Bitcoin-QT, and if both receive money to the very same address, how will the network know who "owns" the bit coins associated to that address?What is this "Private Key"?Is there a private key for every Bitcoin address?Where do I find it?Lastly, if I want to sell my bitcoins, how does the "Private Key" play into all of this?

bitcoin-core address private-key up vote 4 down vote The address field is unused and disabled - you can't put anything in even if you wanted.It is probably an artifact of reusing the dialog for adding a new sending address.So you can't use Instawallet to create an address and import it; and even if such a strange procedure was possible, it would not be safe because then Instawallet would have your private key, which should be kept secret.Since the address is generated locally using pseudorandom data, it is inconceivably improbable that 2 people will share an address (it is less likely that it will ever happen to anyone than that I will be struck by lightning while writing this answer).In this highly unlikely event, funds in this address can be spent by either of them, whoever gets to first.Every address has an associated private key, which must be kept secret and is what allows the owner to claim funds in that address.Bitcoin-qt stores private keys in the wallet.dat file in the application data directory.

When sending bitcoins to someone (whether to sell them, donate them or to pay with them), the software internally uses the private key to prove prior ownership of them and announce to the network that they shall now belong to the owner of address X.You don't give your own private key to anyone; the new owner will use his own key to send them from his address.up vote 3 down vote I click on "new address" and all it makes me do is enter an address and name it… Disregard the 'address' field in this dialog, just fill in the 'label' field and hit 'ok'.If you are running 7.0 the newly created address will be selected, in earlier versions you will have to search your newly created adddress by its 'label'.I don't know what the 'address' field is for, it never shows a value... Your Answer Sign up or log in Sign up using Google Sign up using Email and Password Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for?Browse other questions tagged bitcoin-core address private-key or ask your own question.Jump to: , An account can effortlessly be created using an eWallet service.eWallet services provide an online wallet to hold your bitcoins.This guide covers installing Bitcoin without needing a third party wallet service.Contents 1 2 3 4 5 6 7 /en/download available in 64bit and 32bit.Click Next to start installation.ethereal in linux(Optional) Choose preferred directory then click Next.ethereum link icoWait until installation completes then click Next.litecoin redfitClick Finish to start Bitcoin Wallet.dogecoin history

On the first load, Bitcoin Qt will ask you to choose directory where your Bitcoin block chain and wallet.dat will be stored.Click OK when done./en/download and expand the disk image.Drag the Bitcoin icon to the desired install location, and double-click the icon to run the application.The Bitcoin window will open and connections will start up in minutes.The blocks will begin downloading.At this point, it is recommended to encrypt your wallet before receiving any bitcoins.setting up bitcoin qtEncrypting later may leave earlier addresses vulnerable to theft in the case that the system is compromised.buy litecoin debit cardThis can be done from the Settings menu using the Encrypt Wallet function.bitcoin horoscopeYour wallet will automatically have your first bitcoin address.dogecoin value 2013

You can get your first coins from Bitcoin faucets which gives small amount of BTC for free.The client will eventually show the transaction.After about one hour the transaction should get 6 confirmations.You are able to spend the coins once the transaction shows at least one confirmation.The confirmation counter (like the block counter) will increase by one roughly every 10 minutes.Six confirmations are considered as 100% sure a transfer has been processed.Bitcoins can be bought from individuals, on trading exchanges or from other online services.ethereum israelSee the main page about Buying Bitcoins for more information.The block chain is a never-ending story of every transaction throughout the network from day 1 (genesis).The first time you run Bitcoin, it is downloaded and verified on your computer.Every new transaction is added to the end of this chain and verified by the network to be valid.Whenever you send a coin, you are actually sending a cryptographically signed message, associating your coin with the recipient's address.