[wiggler00m]

Casey Rodarmor has been working on a numbering scheme for satoshis that allows tracking and transferring individual sats. These numbers are called ordinals. Satoshis are numbered in the order in which they're mined, and transferred from transaction inputs to transaction outputs in first-in-first-out order.

Ordinals don't require a separate token, another blockchain, or any changes to Bitcoin. They work right now.