rich1.0Leathermint (npub1v0…m3m3e)https://yabu.me/npub1v0tfjv5ahr3c260jtzdk5w48krerrnkg8fmcnc5lpguk0qda04eqzm3m3enjumphttps://yabu.meThe only way bitcoin can be mined is if work was done (calculations). Finding a block is the proof that work was done. Bitcoin is proof-of-work.