The most recent episode (titled "Frinkcoin") of the American animated sitcom "The Simpsons" explained how blockchain and cryptocurrencies work.
Episode 13, Season 31 of The Simpsons, which aired on February 22, featured (as a guest star) Jim Parsons, who plays theoretical physicist Sheldon Cooper on the American sitcom "The Big Bang Theory".
In this episode, Professor Frink decides to explain to Lisa Simpson how blockchain and cryptocurrencies work by engaging the help of Parsons.
Here is what Parsons said:
"People think I'm a nerd but I'm actually super cool. That's why I'm here to talk about the really cool subject of distributed consensus-based cryptocurrency...
"For cryptocurrency to work, we need a record of every transaction that occurs. These are recorded in what's called a distributed ledger."
Then an animated character, which looked like a book and was meant to represent the blockchain, introduced itself via a song-and-dance routine:
"I'm the consensus of shared and synchronized digital data spread across portable platforms from Shanghai to Grenada.
"Each day, I'm getting closer to being cash of the future. Not in your wallet, I'm in your computer."
Parsons then added:
"When you use the currency, the transaction is recorded in the ledger. And when one ledger book gets filled up, we add to a chain of previous books. That's the blockchain..."
Parsons finished his presentation with a piece of text that contained "everything else you need to know".