Mt Gox - withdraw Address changed, Bitcoins Lost?

[xepera]

Hey there,

I was pretty surprised when I wanted to withdraw some BTC at Mt Gox. I saved the Address in the past and just clicked it in my bitcoin client and sent some bitcoins. Then i checked Mt Gox again and realized that the withdraw address changed.

Are my bitcoins lost?

[rjk]

Hey there,

I was pretty surprised when I wanted to withdraw some BTC at Mt Gox. I saved the Address in the past and just clicked it in my bitcoin client and sent some bitcoins. Then i checked Mt Gox again and realized that the withdraw address changed.

Are my bitcoins lost?

No, the address changes every time. You can still send coins to "used" addresses as well. It will take 6 confirmations before they show in your account.

[DeathAndTaxes]

what do you mean withdraw address changed?

Mt. Gox has no withdraw address.  YOU type in the withdraw address.

[xepera]

Sorry you are correct - I ment the "send" address. But as rjk mentioned the old address also worked. Thanks.

But what sense does this make that theres a new address every time?

[deepceleron]

To clarify: The "My Bitcoin Address" shown to you in the Bitcoin client often changes. This is to enhance anonymity, so people can't easily examine what kind of payments you have received. If you only had one address, it would be possible for others to see everything you've been doing with Bitcoin by knowing your address. You have multiple Bitcoin addresses, all of which are forever valid, even though only one is shown in the main window.

Any address you get from your Bitcoin client is always going to be good. You can re-use the same address when requesting a payment from MtGox so it is easy to keep track of the payments from MtGox, or you can use different addresses so that it is harder for others to discover payments to you and your actual balance.