Can be verified at the bottom of the article linked with the following text: "A version of this article appeared in print on April 8, 2013, on page B3 of the N

Can be verified at the bottom of the article linked with the following text: "A version of this article appeared in print on April 8, 2013, on page B3 of the New York edition with the headline: Bubble or No, This Virtual Currency Is a Lot of Coin in Any Realm."