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Investor Presentaiton

CathedraOS: Industry-Leading Underclocking Capability Increases Downside Protection • • Cathedra has pioneered "underclocking," or using custom firmware to reduce machine power draw and improve efficiency CathedraOS, Cathedra's bitcoin mining firmware, is now available for use by third-party miners at cathedra.com/firmware • CathedraOS enables Cathedra to optimize its own fleet and withstand harsh market conditions, while also earning incremental capex- and opex-free hash rate S19J Pro: Monthly Operating Profit @ US$75/MWh S19J Pro: Break-Even Hash Price (US$/PH/s/day) Factory Firmware Underclocked $18 $140 $121 $79 $81 $42 $201 $161 $60 $80 $100 $120 Hash Price (US$/PH/s/d) $54 Factory Firmware $39 28% reduction Underclocked CathedraOS allows Cathedra and others to mine profitably amid historically challenging market conditions 21 21 O
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