Bitcoin’s consensus mechanism is great, but it isn’t perfect. This article looks at some of the more viable public blockchain alternatives.
New Altcoin Promotes Fitness with ‘Proof of Sweat’
Mangocoinz uses exercise as proof of work, but how to stop the cheaters?
5 Global Problems Bitcoin’s Proof of Work Can Help Solve
Could there be better uses of cyrptocurrency proof of work rather than just solving arbitrary cryptographic problems?