Both Nasdaq omx [0] and Overstock t0.com [1], mentioned in the article, seem to use the Bitcoin Blockchain to peg their internal currency against, they&#x27;re sidechains, not completely separate blockchains...<p>[0]: <a href="https:&#x2F;&#x2F;coincenter.org&#x2F;wp-content&#x2F;uploads&#x2F;2015&#x2F;06&#x2F;SecondLetterForRecord-AB1326.pdf" rel="nofollow">https:&#x2F;&#x2F;coincenter.org&#x2F;wp-content&#x2F;uploads&#x2F;2015&#x2F;06&#x2F;SecondLett...</a><p>[1]: <a href="http:&#x2F;&#x2F;www.sec.gov&#x2F;Archives&#x2F;edgar&#x2F;data&#x2F;1130713&#x2F;000104746915008523&#x2F;a2226515zs-3a.htm" rel="nofollow">http:&#x2F;&#x2F;www.sec.gov&#x2F;Archives&#x2F;edgar&#x2F;data&#x2F;1130713&#x2F;0001047469150...</a>