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1  Bitcoin / Development & Technical Discussion / Mandatory fee charge- why & when? on: April 16, 2011, 08:14:45 PM
"fee" : -0.01000000

When and where does a mandatory fee get charged?

Why is this? How does this happen?
2  Bitcoin / Development & Technical Discussion / Re: Negative balances & Moving coins- 2 questions on: April 16, 2011, 05:48:30 AM
Quote from: theymos on April 16, 2011, 05:33:28 AM
Quote from: Westermarck on April 16, 2011, 05:12:11 AM
1) It's possible to have a negative balance in an address. How is this possible? What's to stop me spending more bitcoins than I own?

It's not actually possible to have a negative balance. Any negative balances you see are UI quirks. AFAIK, only the "" account is supposed to be able to have a negative balance.

And you can only get a negative "" balance when you move coins from there to another account, right?

If that's the case then why is it only with the "" account?

Quote
Quote from: Westermarck on April 16, 2011, 05:12:11 AM
2) How does moving coins work? AFAIK, it's not a transaction.

The balances are just changed. No transaction stuff is done.

OK, so the client moves addresses between accounts when you do a move?
3  Bitcoin / Development & Technical Discussion / Negative balances & Moving coins- 2 questions on: April 16, 2011, 05:12:11 AM
1) It's possible to have a negative balance in an address. How is this possible? What's to stop me spending more bitcoins than I own?

2) How does moving coins work? AFAIK, it's not a transaction. Are they just stored as <PubKeyHash> OP_CHECKSIG in the new address, and when sending from that address it broadcasts a dual script like:

<PubKeyHash> OP_CHECKSIG <PubKeyHashNewAddress> OP_CHECKSIG

?
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