She and her husband, Luke, are taking on the #ProofOfWorkout challenge to stay active while they travel and work remotely. Follow their journey on the Roaming Riddles blog.

You can imagine a blockchain saying to a miner, "Do you even lift, brah?" and the answer being, "Yah, dude, here's the bitcoin to prove it." This simple joke explains, in essence, the concept of proof of work.

Proof of work is simply the ability to show through a piece of data that your machine has used some of its precious computing power crunching cryptographic functions. The reward for all that computing power at a certain threshold and moment is bitcoin. The metaphor is apt when compared to accomplishing health and fitness goals. The work put in to maintaining a healthy and fit body is proved by muscle tone and improved health.

Last week #ProofOfWorkout announced a 30-day fitness challenge, in which participants share their fitness progress on social media and compete to win bitcoin or Gyft cards to Nike, Sports Authority, etc. Here are some numbers from the first 55 registrants.