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Peercoin introduced proof-of-stake in 2012, and Nano/XRB used it at its inception in 2015. So, yes, cryptocoins have had PoS in production for quite a while.
by wyldfire 6y ago
Peercoin introduced proof-of-stake in 2012, and Nano/XRB used it at its inception in 2015. So, yes, cryptocoins have had PoS in production for quite a while.