<p>What you are seeing is a "change address".  When you send an amount that is less than you originally received, it sends the whole amount, and returns the difference to your wallet as "change".  This change may not be spendable until the transaction is confirmed.  The change address is different each time, which makes it harder for a third party to tell for sure how much is sent to which wallet.  If you are not interested in privacy, you can use a different wallet (such as Electrum) which has an option to not use change addresses -- in that case the change would go back to your original address instead of to a new change address.</p>

CC BY-SA 3.0
2013-12-01T04:23:33.700Z
Why didn't this new 1Ypz.. address show under my receiving addresses?
user9778
CC BY-SA 3.0
2013-12-01T04:41:27.187Z
That was a decision made by the bitcoin-qt developers to hide change addresses.  That is one reason I prefer Electrum, because it gives me clear visibility of all my addresses (including change). You can see a discussion of this topic here: https://bitcointalk.org/index.php?topic=185185.0
hsmiths
CC BY-SA 3.0
2013-12-01T13:09:19.297Z
My real problem it seems was that I was using watch only addresses on blockchain.info but without understanding the "change address" functionality.
user9778
CC BY-SA 3.0
2013-12-01T02:43:10.253Z
2013-12-01T02:43:10.253Z
hsmiths
<p>I'm using the bitcoin-qt client on v0.8.1-beta on Mac OSX</p>

<p>I have 3 addresses.  I tried sending .01BTC from one address to another.</p>

<p>1K3BjT1y2X2v3PGhqHh33dRb6kVGdR5CBA ->  1MattHdtuFSof3ctrZhTGzsfQecQBso2nw</p>

<p>However!!! When I lookup the transaction ID: <a href="https://blockchain.info/tx/f638b5ecda8d8b0280a49f342e6cac13560917d5e678f1e3b9a7f35f69b15b97" rel="nofollow noreferrer">f638b5ecda8d8b0280a49f342e6cac13560917d5e678f1e3b9a7f35f69b15b97</a></p>

<p>I did sent the .01 to myself but it also sent
1.2594786 BTC -> 1Ypzoqn4BYSbgeqPJ3mSPdqBC8JGzgX4r</p>

<p>I have no idea what the 1Yp... address is!!</p>

<p>What happened!!!  Did I just loose $1000 ?</p>

<p>it did NOT prompt me about paying any transaction fees!!</p>

<p>I would greatly appreciate any help! </p>

<p><strong>Update</strong>:
Yeah!!! I recovered my coins.   For whatever reason bitcoin-qt generated a new private key but didn't show ANY indication of this in the GUI.  This <em>may</em> be because it was backlogged by about 100 days in downloading transactions..  not sure.  but in any event LUCKILY i had been messing around with trying to migrate to multibit.. anyway i tried to export the private key and was successful:</p>

<p>walletpassphrase  120
dumporivkey 1Ypzoqn4BYSbgeqPJ3mSPdqBC8JGzgX4r</p>

<p>Then it worked !  it actually dumped the priv key and I was able to import into blockchain.info and get access again.  Not sure what happened but it was very unnerving...   again, the GUI does NOT show 1Ypzoqn4BYSbgeqPJ3mSPdqBC8JGzgX4r as one of my addresses...</p>

<p>Anyone care to explain what happened?</p>

<p>Source: </p>

<p><img src="https://i.sstatic.net/QXl6R.png" alt="Transaction Details Image from Bitcoin-qt"></p>

CC BY-SA 3.0
2016-07-06T13:25:00.663Z
related: [How does change work in a bitcoin transaction?](http://bitcoin.stackexchange.com/q/736/5406)
Murch
<bitcoin-core><lost-transactions><lost-bitcoins>
Help! Tried sending bitcoins to myself and they disappeared
user9778
# Help! Tried sending bitcoins to myself and they disappeared

(Asked by: username_0 on 2013-12-01)

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 -> 1MattHdtuFSof3ctrZhTGzsfQecQBso2nw

However!!! When I lookup the transaction ID: [f638b5ecda8d8b0280a49f342e6cac13560917d5e678f1e3b9a7f35f69b15b97](https://blockchain.info/tx/f638b5ecda8d8b0280a49f342e6cac13560917d5e678f1e3b9a7f35f69b15b97)

I did sent the .01 to myself but it also sent
1.2594786 BTC -> 1Ypzoqn4BYSbgeqPJ3mSPdqBC8JGzgX4r

I have no idea what the 1Yp... address is!!

What happened!!! Did I just loose $1000 ?

it did NOT prompt me about paying any transaction fees!!

I would greatly appreciate any help!

**Update**:
Yeah!!! I recovered my coins. For whatever reason bitcoin-qt generated a new private key but didn't show ANY indication of this in the GUI. This *may* be because it was backlogged by about 100 days in downloading transactions.. not sure. but in any event LUCKILY i had been messing around with trying to migrate to multibit.. anyway i tried to export the private key and was successful:

walletpassphrase 120
dumporivkey 1Ypzoqn4BYSbgeqPJ3mSPdqBC8JGzgX4r

Then it worked ! it actually dumped the priv key and I was able to import into blockchain.info and get access again. Not sure what happened but it was very unnerving... again, the GUI does NOT show 1Ypzoqn4BYSbgeqPJ3mSPdqBC8JGzgX4r as one of my addresses...

Anyone care to explain what happened?

Source:

![Transaction Details Image from Bitcoin-qt](https://i.sstatic.net/QXl6R.png)

**Tags:** bitcoin-core, lost-transactions, lost-bitcoins

> **Comments:**
> **username_1**: related: [How does change work in a bitcoin transaction?](http://bitcoin.stackexchange.com/q/736/5406)  

---

## 1 answers

### Answer by username_2 on 2013-12-01. Score: 5 | Accepted answer

What you are seeing is a "change address". When you send an amount that is less than you originally received, it sends the whole amount, and returns the difference to your wallet as "change". This change may not be spendable until the transaction is confirmed. The change address is different each time, which makes it harder for a third party to tell for sure how much is sent to which wallet. If you are not interested in privacy, you can use a different wallet (such as Electrum) which has an option to not use change addresses -- in that case the change would go back to your original address instead of to a new change address.

> **Comments:**
> **username_0**: Why didn't this new 1Ypz.. address show under my receiving addresses?  
> **username_2**: That was a decision made by the bitcoin-qt developers to hide change addresses.  That is one reason I prefer Electrum, because it gives me clear visibility of all my addresses (including change). You can see a discussion of this topic here: https://bitcointalk.org/index.php?topic=185185.0  
> **username_0**: My real problem it seems was that I was using watch only addresses on blockchain.info but without understanding the "change address" functionality.  

---

