They sold 4.3k BTC. The number you quote is the trade volume, not the total notes outstanding, which actually decreased this week, meaning they were net buyers of BTC through XBT this week (as of close of business on Thursday)...

Not sure who would take the risk of writing that many put contracts at what I would consider pretty close to ATM (huge counterparty risk here that it doesn't get honored). Having said that, those saying he needs luck need to realize BTC is still in a downtrend, evident by the resistance trendline on a log scale that has yet to be breached (easily drawn on a weekly chart on nearly all exchanges). Below $290-315 depending on exchange, the trend is your friend and it's down. It's reality until it isn't.

EDIT: Even black-scholes puts the option price at about $8.50 given current volatility (which happens to be on the lower end).

I believe people in another thread suggested something along the lines of 4 days or so. This could bring us some more money from people selling their shares, and re-buying on the open market a few days later. The only problem with this is, that the volume still isn't really high enough for this to matter!

Probably your standard T+3

I think to see full details and without the 15 min delay you'll have to pay for access.

This should be an interesting week as this develops, I had hoped this would have been last week but I'd obviously underestimated how long it takes to get shares through the process it takes to put them up with an Ask price.

However consider that BIT is limited to "high net worth" investors and if I was someone with a long term interest in holding say 10,000 already matured shares as a small % over my portfolio I would be tempted to :
1)  Buy 10,000 new shares at the current market rate (1,000 BTC x $235 = $235,000)
2)  Sell 10,000 matured shares at the best GBTC rate I can get (say avg. 10,000 shares x $40 = $400,000)
3)  Bank Profit ($165,000)
4)  Hold the 10,000 new shares for 1 year (again)

This assumes anyone investing has money in the bank they can spend immediately and they don't need to wait to sell their existing shares before they buy new shares.

Found MPEX's owner in #bitcoin-assets who offered me a great deal (In my opinion) on a 3 month put option on the price of BTC tied to Bitfinex last ask price.

Strike price of $215 USD

Fee of $7.50 USD in BTC per BTC optioned.

Time for you all to lose your pants, socks, sweaters and all in BTC and for me to make THOUSANDS!

+2 because I like yours more!

Starbug only needs a picture of your finger[1][2]. Its incredible that this is still a "security" mechanism in passports.


See above or here[3], thats no better.


I think the point was to find something that can not be lost and not be forgotten easily. Both is true for the finger, even though you might lose the prints you still have the original finger as long as you dont burn or cut yourself. I think OPs idea was the reduce the strength of the passphrase (e.g. a HD wallet seed) and make up for the loss of security with the finger print. Thus its easier to remember than a seed alone, but still as secure.


[1] sorry german -> http://media.ccc.de/browse/congress/2014/31c3_-_6450_-_de_-_saal_1_-_201412272030_-_ich_sehe_also_bin_ich_du_-_starbug.html#video
[2] english article -> http://arstechnica.com/security/2014/12/politicians-fingerprint-reproduced-using-photos-of-her-hands/
[3] http://www.forbes.com/sites/thomasbrewster/2015/03/05/clone-putins-eyes-using-google-images/

I doubt there is any serious work beeing done in that direction. The main problem with fingerprints is that you leave them literally everywhere. Every glass you use could be used to gather your fingerprints. You would end up with a private key which is only protected by a password. We already got that, its called a brainwallet.

That is a pretty cool idea, I have not heard of anyone doing this yet. The biggest thing is how much Entropy a Fingerprint actually has. Some quick research shows that it should be possible to generate a series of numbers from a fingerprint 'reproducibly'. If you set a specific % matching thresholds 'noise' in the software capturing the fingerprint, lowering the threshold to generate a number from a fingerprint does reduce the amount of entropy available. Some estimates 40 - 80 Bits of Entropy. Kind of a wide range, but should still be large enough source for private key generation.

Here is some information posted a year ago by someone that is relevant:
http://www.reddit.com/r/crypto/comments/1fpobr/how_many_bits_of_security_in_a_fingerprint_as_in/
Enhancing security and privacy in biometrics-based authentication systems - http://www.cedar.buffalo.edu/~govind/CSE717/papers/CancelableBiometrics.pdf
How to Generate Strong Keys from Biometrics and Other Noisy Data - http://www.cs.bu.edu/~reyzin/fuzzy.html

Edit: Fixed Spelling