This metric calculates the maximum number of rigs required of to generate the observed network hashrate. The model assumes that all operational rigs are a uniform device model, which is a gross simplification of reality, but allows for an assessment of relative hardware efficiency gains over time.

The following reference ASIC rig models are considered:

• 🟣 S9 Antminer (13.5 Th, 1323W, Feb-2017)
• 🔵 S17 Antminer (56 Th, 2520W, Apr-2019)
• 🟡 S19 Pro Antminer (110 Th, 3250W, May 2020)
• 🔴 S19 XP Hyd Antminer (255 Th, 5304W, Oct 2022)

Note: Traces per rig commence on the approximate date of availability according to the manufacturer.