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1  Bitcoin / Bitcoin Discussion / Re: What Happens When Double Spending Occurs With USD??? on: March 16, 2011, 03:25:27 PM
Say I send an email money transfer (these are popular in Canada) to my friend.

The bank's software that handles email money transfers forgets to remove the money from my account. But still adds it to my friends.

He is not $100 richer. And I am no poorer. Because of a software glitch.

This is entirely plausible to me.

Does it happen? How do they catch it? What can it's (presumably negative) effects be on the currency as a whole?
By the way, am I correct in presuming you meant to write "he is NOW $100 richer"?

You bet they'll catch it. Remember, what are bankers, really? They're accountants. And accountants live to make sure glitches like that don't happen. In accounting, every transaction is treated as a transfer from one account to another. It's called double-entry bookkeeping: every transaction has a debit entry in one account, and a credit entry in another account. At the end of the day, add up all the debits, add up all the credits. The amounts have to be the same.


Not true. Bankers lose money and make mistakes, and often don't catch them unless someone else does.

My grandfather found an extra 10k in his account one day. Being an honest guy, that or being afraid of getting into trouble (I think a bit of both actually), he went over to the bank manager and reported the mysterious 10k.

Their response was "Thank you so much, we were looking for that money, if you didn't come forward, i don't know if we ever would have found it".

Just because they make a mistake, doesn't mean they know where to look to catch it, what if the reason that they didn't take the 100 out of your account included losing the account number associated with the transaction? Finding where it should come from is not only a needle in a haystack... bankers, being accountants, also realize that its entirely possible to spend more time trying to find where some money went, than you lost in the first place.

2  Bitcoin / Bitcoin Discussion / Re: A question about Bitcoin software on: March 16, 2011, 03:18:16 PM
Hi guys  Smiley
I’m wondering how much BTC could I make ,if I keep this thing connecting to Internet 10 hours per day ?



without putting in some work? Not much.

Imagine it this way... bitcoin is like a big number guessing game. In each round (read: for each block) there are a number of "right answers" that everyone has to guess at. The faster your machine (which can be CPU (easy) or GPU (more work, requires hardware), the more guesses you get to make... thus the better your chances of winning.

So it depends on your hardware, but honestly, unless you wanna put work in, and drop hardware on the problem, then, the answer is... not much. Look into pooled mining and/or GPUs if its what you really want to do.
3  Bitcoin / Mining / Re: Has the bar been raised too high on: March 16, 2011, 02:58:55 PM

but the computation speed is already dropping like a stone, due to many of the curious losing interest, so the difficulty will be dropping massively next adjustment.

I would estimate we will see less then a 10% drop.  I am thinking around 70000.   

I need to look again but... I thought difficulty changes were capped anyway? Can they change by more than 10% at a time?

4  Economy / Marketplace / Re: CoinTumblr - any experience? on: March 15, 2011, 02:30:48 PM
Hi folks,

three days ago I went to CoinTumblr[1], createt a transaktion about ~20BTC, entered some addresses of mine and clicked on "anonymize".

On CoinTublr they say "You will receive your anonymized Bitcoins within 48 hours of paying the full subtotal to the CoinTumbler-provided "receiving" addresses."
I sent CoinTumblr all the coins ~60h ago.

Has any of you some experience with this Website? Should I wait some more ours or is it a scammer and the site should be removed from wiki?

Hope to hear from you soon Wink

Jack

[1] Wiki https://en.bitcoin.it/wiki/CoinTumblr
TOR http://lbrmvt4plqojaulx.onion/
Tor2Web https://lbrmvt4plqojaulx.tor2web.org/

So you are one of the other people using it. In a similar time frame, I also started testing it.

It worked a couple of times, I got my bitcoins back, to the addresses which I specified. I followed everything through the block chain, it worked as advertised.

It looks like it stopped working a couple of days ago. The btc are still being moved into the secondary address... but thats it. In fact, I came on here today and created this account specifically to see if I could get a message out to whoever is running it to look into it, since there is no contact info on the site.

Here is the secondary address:

http://blockexplorer.com/address/1NgLdBTSYqnqwqiD2JioPRfqEkm3Zvs32u

Scroll to the bottom and look for the last sent time/date: 2011-03-13 06:17:49

Looking over balances, it looks to be around 370ish btc stuck in there.

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