This is a submission for DEV Computer Science Challenge v24.06.12: One Byte Explainer.

Explainer

Blockchain is a digital cat diary. Every time Mittens the cat eats, naps, or chases a laser, a secure, unchangeable entry gets added. Everyone agrees Mittens did those things, and no one can sneak in a fake entry claiming Mittens did their homework!

Additional Context

Using humor engages the audience, making the explanation memorable and more likely to be shared or discussed.