Linked Questions

5
votes
1answer
12k views

What does change address mean inside Electrum wallet?

I am bit confused with the change label that is inside Electrum Wallet . Can I receive bitcoin if i give this address which are under change label? What is the difference between Receiving and Change ...
6
votes
3answers
19k views

Using dumpprivkey to make a paper backup

I'm just getting started with bitcoin and haven't acquired any significant amount yet, but want to feel relatively secure before I do. And at the moment, my fear of losing bitcoins or a device on ...
6
votes
4answers
755 views

Bitcoin client which doesn't use wallet.dat?

Is it possible to use Bitcoin client without wallet.dat file, by entering your addresses and being able to see the balance, but without the ability to spend bitcoins? I know that it's possible to ...
2
votes
2answers
5k views

Does a new private key is generated at each transaction?

So, imagine I bought 1 BTC, so I have my private key generated by my online wallet and also my public key that I can give to people/friends. My question is, if I spend 0.5 to buy Apples on a website? ...
1
vote
1answer
1k views

Help! Tried sending bitcoins to myself and they disappeared

I'm using the bitcoin-qt client on v0.8.1-beta on Mac OSX I have 3 addresses. I tried sending .01BTC from one address to another. 1K3BjT1y2X2v3PGhqHh33dRb6kVGdR5CBA -> ...
4
votes
1answer
670 views

What happened to my coins, hacked?

I'm new to bitcoin, downloaded the bitcoin.org client, encrypted my wallet, and purchase a few bitcoins (5.25), for learning purposes. But now my coins seem to have disappeared to an unknown address. ...
1
vote
1answer
3k views

Sending from Coinbase to Blockchain wallet. Numbers explained?

I recently sent .9 BTC from my Coinbase account to a Blockchain.info wallet, but the numbers I see are confusing. According to my Blockchain app, the transaction was for .90130821 BTC, with a fee of ....
0
votes
1answer
1k views

Explorer showing different balance then my Blockchain wallet

My Blockchain wallet address on the explorer, shows a low balance (under .001) but when I log into the wallet I can see what should be there about .25 BTC. My Electrum wallet is also doing the same. ...
0
votes
1answer
565 views

Why do transactions send coins to the same address as they spent it from?

I often notice transactions such as: 364efe5a906de5971e242f9711008e58a5ab79f136a8044b66615e8662d35f09 Where funds from the address 3PU with 1.38 BTC are split to itself (1.35 BTC) and 37Ek (0....
1
vote
1answer
730 views

How does the transaction signature prevent transaction duplication?

Let's say that Alice sends 1 BTC to Bob. We have then a signature of (Alice sends 1 BTC to Bob) with Alice private key. What prevents Bob from duplicating this exact same transaction and sending it to ...
1
vote
1answer
511 views

Why does coinbase make 2 transfers instead of one

I'm new to bitcoin in general and coinbase.com in particular. Can somebody explain what happens when I order a payment (in bitcoins) from their web interface? Say that my acount owns 1 BTC. I create ...
1
vote
1answer
791 views

Just received a payment twice from coinbase

Edit: Looks like the error was with my wallet. When I contacted support, they said to have the wallet rescan the block chain. After doing that, my balance went back to 0. I'm new to bitcoin, but ...
1
vote
1answer
669 views

How to return change (utxo - inputs) to output address?

I've been learning to create bitcoin transactions for 3 weeks now, but keep paying the entire unspent_outputs - inputs as fees, even if the transacted amount was like 1/100 th of the outputs. How do I ...
2
votes
1answer
498 views

First bitcoin payment, sent X BTC, but transaction amount on blockchain.info shows as more than 2X?

I sent 0.01047 BTC through coinpayments.net using electrum. First I selected minimum fee option, then I went back and selected one level higher as the fee tier. My electrum wallet and blockexplorer....
-3
votes
2answers
475 views

Will I get my bitcoins have I been scammed?

Okay, I'm wondering what's going on here. I recently synced my wallet after ordering some bitcoins, but I never received them. The guy who sent them to me, sent me the blockchain address. So, I don't ...

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