will a clearing house be established? how will new company's list, will there be rules for the issuing of prospectuses? will there be a regulatory body with powers to keep company managements open and honest...hold them accountable, protect the rights of shareholders?
As I see it, there will be nothing like this whatsoever. It will be much more "wild", for everything will be reputation based. |
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I thought the card rules said you could use it at an ATM. To withdraw cash, you would use it as a credit card instead of an ATM card with a pin. I've never used a credit card at an ATM, so I don't know the details.
I haven't tried to withdraw cash from an ATM, for I doubt it will work without a PIN. As of using it as a credit card in a shop, I don't know either, but I'll try. The cards around here are very US centric. Are they blocking you from registering because of your IP address or is it something else?
No, I can see the registration form and I could fill it, but it doesn't fit to enter a foreign address (it only ask me for a US state, for instance), and I don't want to enter fake infos. |
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Oh, sorry for being an idiot, I thought the integer tuple was structed like this:
(amount, index, amount, index, amount, index, ...)
Indeed it's rather structured like: (amount, amount, amount, ....) By the way, on second thought I wonder why I said that amounts should be integers. Floating point values are necessary I guess. But anyway one of the thing that bitcoin inspired me is that floating point values are nothing but very big integers. But for the theoretical study it might be easier to consider real values. |
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Somehow this doesn't fit, does it ?
Why do you say this? It all depends of the relative value of the assets. I could have replaced 40 by 0.001 if asset 1 was extremely valuable compared to other assets. |
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I'm going to write the problem in an even more generic way.
An order will be a list of signed integers:
(-40, 0, 6, 12, 0, 0, 1, 0, 0, 0)
This example shows an order that says that the issuer is ready to give 40 units of asset 1 if this can give him 6 units of asset 3, 12 units of asset 4 and 1 unit of asset 7.
The order book is a list of such lists.
The requested algorithm should return a list of cycled orders lists.
I suspect it is possible to solve the problem elegantly with a recursive function.
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It's for situations like this that "prices" were invented.
I disagree. A price emerge when one particular asset acquires a currency status. In a situation where almost all assets are currencies themselves, then the barter model makes sense. |
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I want to implement a generic barter plateform, but the algorithm is a bit tricky to write. Here is the idea: we have a bunch of exchange orders between assets called asset1, asset2, etc. An order looks like that: #n -q1 assetA q2 assetB #n is the reference of the order q1 is the quantity of assetA that is given q2 is the quantity of assetB that is desired in exchange for assetA I've made a simple bash function that generates random orders: randtrades() {
for a in asset{1..10}
do for b in asset{1..10}
do
if [[ "$a" != "$b" ]]
then echo -$((RANDOM%10)) $a $((RANDOM%10)) $b
fi
done
done |
grep -v -e '^-0' -e ' 0' |
sort -r |
cat -n |
sed -r 's/^\s+/#/'
}
The goal is to create a function that takes the output of randtrades as input, and returns list of possible trade cycles: exemples: #1 -2 assetA 4 assetB #2 -1 assetB 2 assetC #3 -4 assetB 1 assetA returns: #1 #3 because obviously orders #1 and #3 match one another (they make a 2-lenghted cycle). An other exemple: #1 -2 assetA 4 assetB #2 -1 assetB 5 assetD #3 -2 assetC 1 assetA #4 -5 assetB 2 assetC returns: #1 #3 #4 because #1 gives the required asset to #3 which gives the required asset to #4 which finally gives the required asset back to #1. They make a 3-lenghted cycle. Hope it's clear. Don't worry too much about quantities. The only important thing is that an order is capable of giving at least what is required. Of course if there are muliple possibilities, all of them should be displayed, one per line. |
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I actived the card so I'm pretty sure I could use it at least on the
web. However, the registration process is necessary to get a PIN
number and to use the physical card on an ATM for instance.
I'd like to register but it seems that only US citizens can.
Any solution for foreign users?
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Bitcoin, like gold, dues part of its value on the simple fact that can't be produced at will. If you start to make credits, you'll need to print more money than the one already existing; promissories, the "birth" of "Bitnotes". Unlike bitcoins, bitnotes could then be produced at will with any value whatsoever printed on it. A total slippery-slope and basically the importation of the current "huge Ponzi scheme economics" we live on "real market" today (up to break sooner or later) to the BTC world!
I'm not a huge fan of credit either, and yet I don't see any reason why it should be prohibited. Moreover, there is no chance a credit based money can be confused with bitcoin. You don't like credit? Fine, just don't buy nor sell any of it. |
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Yes, I'm talking about nice icon on the desktop launching an app in a tray that sits there and does the work without getting in your way, easily configurable, etc. To edit a script (even when you want to define your own passphrase or backup destination), you have to have some scripting knowledge. With an app with nice GUI you don't - that's the difference.
Ok I understand now, and I totally support your project. It is indeed a good idea to make bitcoin wallets easy to backup, even for retarded people. |
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For the "average Joe" a script is not different from any other executable program.
I really don't see your point, unless what you're talking about is a nice icon on a desktop where to click to. This is very much OS-dependant, and it's really just a marketting/ergonomics issue imo.
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grondilu: I think you misunderstood. The encryption with your passphrase takes place on YOUR computer. The passphrase isn't stored anywhere. Once the app encrypts the wallet its gone. So there isn't a way even for cloud storage provider (let it be me or some public provider) to decrypt your wallet.
Indeed I misunderstood. I still don't see your point, though. What do you want exactly that can not be written in a three lines script ? You encrypt with gpg, and you send with scp. Several scripts have been published on the forum and on the wiki. Check them out. |
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Basically to make cloud backups, all you need is cloud data storage.
Trusting someone to store your passphrase defeats the very purpose of strong encryption.
So yes, cloud backups is great, as long as I stay in charge of encryption.
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Put that inside your public_html folder rather than root - look at how ~nmapme/ is set up.
Then that's the right URL you have.
That works. Pretty cool. Thanks. |
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Ce serait peut-être plus simple en vendant des bons d'achat utilisables sur ces sites? Il y en a non? (genre carte cadeau...)
Oui probablement. Mais quand j'y pense je me dis que l'essentiel est peut-être de se concentrer sur les moyens de convertir des bitcoins en monnaie nationale. L'idéal serait que la communauté bitcoin réunisse le capital nécessaire pour créer sa propre banque. On aurait alors les autorisations requises pour utiliser directement les cartes de paiement. Tant qu'on pourra pas faire ça, ce sera toujours de la bidouille. |
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please let me know what you think (good or bad)
Well, my first impression is good. For instance you have a decent installation of vim, and Ubuntu is much up-to-date than Lenny. It seems like a good service for this price. I don't understand exactly how to run cgi. I've created a cgi-bin directory in my $HOME, and I wrote a small test.cgi, chmod +x it, but which is the url exactly? I've tried http://s0.barwen.ch/~grondilu/cgi-bin/test.cgi but it doesn't work. |
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Ok I want to give this a try. I've just signed in and mailed you my SSH public key. |
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