[forgottenpass]

Only in the general sense that bitcoin is a system with some desirable properties of a decentralized torrent index. The list of all software with features desirable in a distributed torrent index is as long as my arm and it's arguably sensible to "investigate" any one of them.

But the grandparent poster didn't name many technologies, they singled out the bitcoin blockchain specifically. A technology that through the popularity of its function has made it a popular target to have other things bolted onto. But popularity of the blockchain hammer does not turn all problems into nails.