Definition. The number of unique entities that were active as a sender.

Technical. Entities are clusters of addresses estimated to be controlled by the same actor, identified through advanced heuristics and Glassnode's proprietary clustering algorithms. Entity-based metrics rely on statistical and data-science methods that are refined over time. The series is therefore mutable: its established history is stable, but recent data points may revise as clustering improves. For methodology, see our article on account-based metrics.

Notes. For more information, see our article on how many entities hold Bitcoin.