Well, other exchanges claim to be "regulated" too.  At least one of them claims to have Money Transmittal licenses in a dozen states.

Coinbase may be correct on some strict sense, perhaps.

Barry Silbert does not seem to be a first-hand source; the Wall Street Journal had already leaked it all.

But what if the math tells him that he would profit more by using the result himself?

They are already being sold, Ross agreed to that. Besides the SR 30'000, 50'000 were sold last December, another batch is to be sold "in Q1/2015".

http://www.reddit.com/r/Bitcoin/comments/2t8ppe/now_you_can_buy_a_trezorlike_hardware_wallet_in/
You are welcome.

Do you mean the sticky tape, or the mailing labels? 

(Oops, is it OK to answer a question with a question here too?  )

Sorry, I could not get beyond that.  However,  I found a formula (attributed to Euler) for sin(x) as an infinite product

sin(\pi z) = \pi z \prod_{n=1}^\oo (1 - \frac{z^2}{n^2})

It looks similar enough to your function shifted and scaled as before

f(\pi (z + 1/2)) = A g(z)

where z = x/\pi - 1/2,

A = \prod_{m=1}^\oo \frac{(4m-1)^2}{4m(4m-2)}

and

g(z) = \prod_{m=1}^\oo (1 - \frac{4z^2}{(4m-1)^2})

Maybe you can get some inspiration out of it...

The posts I have seen say today (Monday).  I can't tell whether they are correct, of course.

Coinbase trading API documentation:
https://docs.exchange.coinbase.com/

Hard to tell...

The rise from 200 to 250 over the last 10 days may have been just a recovery from the crash of 2015-01-13 (like the recovery after the 2014-10-04 crash).  The rise today seems to be due to the Coinbase news, apparently led by Bitfinex.

So far the price got back to the trend it followed for most of Nov-Dec 2014.  Let's see what it will do next.

By the way, I still don't know what caused the mini-bubble that started on 2014-05-20.  It may have been driven by the West, for all I know.  But that demand may have evaporated between August and October.

Yes, but you'll have to wait your turn, the line starts over there.

Yeah, @theymos and his team work for me and they got me this private tool called "Watchlist".  Works fine with this "browser" tool that I got elsewhere.

By the way, I have some 100 threads in my watchlist, but usually the only one that shows up is this one.

Are you confusing me with Prof. Mark T. Williams, who predicted 10 $/BTC by mid-2014?

He overestimated the prescience of bitcoin investors.  I am trying not to make the same mistake. 

It can be written as

f(x) = A \prod_{m=1}^\oo (1 - \frac{4z^2}{(4m-1)^2})

where z = x/\pi - 1/2, and

A = \prod_{m=1}^\oo \frac{(4m-1)^2}{4m(4m-2)}

That is an even function of z.  Therefore, the the coefficient of (x-\pi/2)^3 in the Taylor series around \pi/2 is zero.

Is that close enough? 

I though that, Coinbase being already licensed as a payment processor, a Coinbase customer already could
* deposit dollars at Coinbase
* buy bitcoins at Coinbase,
* withdraw his bitcoins,
* send bitcoin to a merchant
* have Coinbase send the dollar value of his bitcoins to merchants

With a money transmitting license, a Coinbase client can also
* sell his bitcoins to Coinbase (or other Coinbase clients)
* withdraw the dollars from such sales

I.e. Coinbase becoming a fully licensed exchange makes it easier for people to sell their bitcoins (not just spend them in purchases).  They could already buy bitcoins from them, so that part did not get any easier.  

Is this correct?

First U.S. Bitcoin Exchange Set to Open
Coinbase Has Backing From the NYSE, Banks and Venture Capitalists
http://www.wsj.com/articles/first-u-s-bitcoin-exchange-set-to-open-1422221641

Reminds me of an exchange that recently ran away with the customers funds and left some MP3 files with silly riddles in their website.   

[/troll]

There is already a Chinese clone that copied everything verbatim, including their USB vendor code (which is said to make the product a counterfeit merchandise).

Would you say that you actually lost money (i.e. what you got from them is worth less than the money you gave them plus interest), and that they got richer thanks in part to your loss?

I presume that they will do that too; but that you could get tat service with localbitcoins or ATMs.  I understood that the matched trades for remittance were their differential, and they need the offices in each country in order to do that.