Proof of Work can be simple. Just move some stones from the red dot to a green dot on a piece of paper.

This is what we did in Lesson 6 of the My First Bitcoin certificate.

#Proof of Work.

BTC Curaçao Institute

https://blossom.primal.net/e79b887d4cc3b875c52ee9bd7baf5b58ea1b58fb92b58669d9b989061f54c8a5.mov