Got number 2 today in the mail - the only one I had ordered. Worth reading, but not quite up to date  |
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You just typed the password to generate the QR code. It is my understanding that the password is not even transmitted to blockchain.info, but is used locally to decrypt your wallet with some javascript in your browser. Most likely the QR code is generated by local javascript too, so your password never leaves the browser. But it would of course be nice to hear an official confirmation of this.
What worries me slightly more is that this password is somehow stored on my iPhone in a decryptable way (otherwise the app would not be able to access the web page). I really hope it cannot be recovered from the backup files or something like that, but since my backups are unencrypted it probably can.
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Allright, tomorrow I'll add it some way or another.
Thank you very much indeed. No, it worked for me quite good during that time.
OK, it would have been an almost sensible thing to do, but I guess it was just a fluke - or perhaps the server gets a bit overloaded right then, when the majority of the users are on at the same time, refreshing their pages expecting to see some action.  |
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As for the orderbook 5 price levels limit - we are thinking on how to better place the orderbook on the trading screen and it'll be enhanced to contain more price levels once redesign is figured out.
I don't think this should wait for a redesign. It would be very, very useful if you could just place a link on the page to a separate page displaying the full order book. It does not need to be something fancy that autoupdates, initially just an ugly page showing a snapshot would be great. We really need it! EDIT: PS. Did you pull the internet plug a few minutes before the clearing to prevent the usual market manipulation, or was is just me that lost connection for a few minutes at the critical time? |
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Hi,
Is there anyway to see more of the orderbook than five orders to each side? Sometimes it looks like someone is (successfully!) trying to hide part of the book by placing five orders of one contract one cent apart.
Also, is there a way to get all trades in the last week or so? Or just the last 24h? Either in human-readable form or machine readable. Heck, it would also be OK if the full depth was JSON, not that hard to read after all.
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Bleh, we need new business so we can finish putting this one out of our misery.
Too unfortunate that it is our misery, not their. May I suggest Bitfloor (although it got a bad start) or Bitstamp. |
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Most currencies do not have a symbol, just a name and an abbreviation. Swedish Kronor are SEK, for example. No funny K with slashes Ain't BTC good enough? |
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Problem solved. I was missing a / at the end of the URL. I guess the error message was kind of misleading |
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I'm going to guess you are sending a GET request and not a POST request ??
No, Python's library use a POST when there are parameters (it is also possibly to use a GET, but then you need to append the parameters to the url yourself). At least, that is what the docs say, but I am not sure if I can test it. |
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Hi! I am trying to use the Bitstamp API, but it apparently refuses to recognize my userid and password. I have enabled API access in the settings, and I tried disabling 2-factor authentication to no avail. I am using this Python script, can anyone help me find the problem? import urllib2
from urllib import urlencode
import json
user="12345"
passwd="top-secret"
req = {}
req['user'] = user
req['password'] = passwd
post_data = urlencode(req)
print post_data
res = urllib2.urlopen("https://www.bitstamp.net/api/balance", post_data)
result = json.load(res)
print result
I get this results (sorry for the primitive formatting) password=top-secret&user=12345
{u'error': u'Missing user and/or password POST parameters'}
(of course these are not my real userid and password, I get the same error with the real ones). EDIT: Problem solved, se my post at the end.
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It's fixed now, please give it a try.
Thank you very much indeed! |
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I like the concept a lot.
What has your experience with them been like in terms of liquidity and customer service?
Right now I think the main problem is too few customers, resulting in a rather large spread and low volume. When I email customer service, I got quick replies, and Fireball usually responds here too. The user interface still leaves something to be desired, my main gripe is that I cannot withdraw bitcoins without closing all contracts (see earlier in this thread). I trust that will be fixed soon. PS. I like your blog |
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I don't think this is entirely correct. It looks like the maximum variation of 10% on BUZ2 is implemented as a limit on how low/high bids/asks the system accepts. So if the BTC/USD price changes by more than 10% in one day, the BUZ2 price will try to follow, but will be limited to 10%. The next day, the remainder of the change will happen. So in a perfect world, you arbitrage possibility is clearly there. But there are of course risks. 1) In case of sudden price movements, some of your contracts may be closed at a price that is profitable but less profitable than if they had been allowed to run, in case somebody else receives a margin call, and the system cannot find buyers/sellers for their contract. I assume this could happen in reality if the BUZ2 price cannot follow the BTC/USD price due to the 10% rule. In that case noone may be willing to sell or buy, and a margin call may enter the "worst case scenario": https://icbit.se/margincall2) A hacker or an ICBIT insider may run with the funds. See the discussions above in this thread. After all, ICBIT does not publish their identity or where they operate from - perhaps wisely, considering the political climate in some countries. :-) Finally, I suspect that the cause of the price difference is that many people expect the BTC to increase in value, and believe they can earn more by holding a long position in BTC (on ICBIT and in their wallets) rather than holding a neutral position as arbitrage would imply (long position in the wallet, short on ICBIT). Of course, if you have funds to spare you can buy extra BTC, short on ICBIT, and get the arbitrage profit on top of whatever you gamble with the ordinary exchange rate. EDIT: And when you rush off to do the arbitrage, you should be aware that a BUZ2 is not a futures contract for 1 BTC, it is a futures contract for -10 USD (minus ten dollars). In reality, you are trading futures on the USD, but since we all think of the price of BTC in USD, not the other way round, ICBIT has wisely inverted the price. You therefore need to match the dollars used to buy BTC with the amount of contracts on ICBIT, not the amount of BTC when doing an arbitrage. It helps that the system indicates how many BTC you contracts correspond to, but that number changes as the rate changes! Just do the math carefully, otherwise risk number three appears: bad math |
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I am trying to withdraw a part of my BTC, but I get the message "Please close your open futures positions before withdrawing Bitcoins!". I currently have more than 100 contracts open, with the current spread closing and reopening them would cost me a larger amount than the one I am trying to withdraw! I really hope you can fix this soon, otherwise it is going to be a bit too expensive to use ICBIT  EDIT: If I sell a few BTC for USD, can I then withdraw them as a VouchX code (and buy the BTC back in another account / on another exchange)? Or am I prevented from withdrawing a VouchX code while I have open futures positions? Or prevented from selling BTC? |
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Only if you use Dual_EC_DRBG. Bitcoin doesn't use it, or any other PRNG for that matter, instead relying on the OS's entropy source, which (normally) produces random numbers from hardware sources. Note that ECDSA (which Bitcoin does use) is not related to Dual_EC_DRBG in any way other than being based on the elliptic curve discrete logarithm problem, and does not have this backdoor.
So there is a backdoor, and you know what it is? |
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Or tell us your real Name  Thats a nice start too! While there is a good chance that no scammer would want to build such an elaborate web site as icbit.se, and a good chance that seeing it become a success is both more fulfilling and more profitable than running with the bitcoins, I must admit that it is worrying that the domain name is registered to Mr. vnnber1106-00001  In any case, suing somebody in Russia (or Japan for that matter, if MtGox runs with our money) is pretty hopeless. Never leave more money on any exchange that you can afford to loose. On icbit, I am afraid that leverage makes it more likely to loose the money on the market than in any other way. On the other hand, it is more fun than Satoshi Dice. |
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Hi Fireball! I have a suggestion for the user interface. If a user has typed a price, and then clicks buy market or sell market, he probably wanted to place a limit order instead, and a confirmation dialog should appear. In fact, a confirmation dialog would always be a good idea, but in particular when the input by the user is ambiguous. I have made that mistake twice already, such mistakes can in principle be quite costly! In my case, I actually earned half a bitcoin, but that is besides the point. EDIT: One more suggestion: I just got a partially filled order, it is printed on my order list with yellow text, presumably to highlight it. Unfortunately, yellow text on a light grey background is unreadable, I had to select the text to see what it was! |
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3. Last opp kopi av identifikasjon (pass/førerkort) og kopi av en regning slik at du blir "verifisert bruker". Da får du lov til å overføre Euro.
Pas på! Nu har MtGox PDF filer, som du brugte til at dokumentere din identitet. Hvis nogle hacker MtGox (eller de har en uærlig medarbejder) så kan kriminelle få fat i de dokumenter, og bruge dem til at oprette kreditkort og lignende i dit navn. Det kan være *MEGET* svært at komme ud af den situation igen! Hvad med bitstamp.net? Placeret i Eurozonen, du kan overføre billigt (SEPA). De understøtter tofaktor. |
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Is your site having IT trouble? On the Futures tab, all my futures are gone (the BTC are still there) We are updating our software at this moment. Trading will be resumed in a couple of minutes. Some maintenance was required to add support for our new futures, sorry for any inconvenience. I see you are back up now! Thanks for your quick reply. |
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