01 / THE MACHINE
Bitmain · 234 TH/s · 3,510 W · Air-cooled
Change the assumptions.
See what has to be true to repay it.
CALCULATION PAUSED
No verdict or chart is shown while the inputs are invalid.
02 / THE DECISION
FLAT REVENUE PATHAccumulated cashflow, including the upfront purchase
This Oct 2026 → Oct 2028 planning window crosses the expected 2028 subsidy halving. A flat path can overstate revenue. This is a scenario, not a prediction.
Subsidy and hashprice are different: BTC price, difficulty and fees also affect revenue. Leave this off if your trend or equation already includes halving; otherwise you would count it twice. When on, this factor multiplies the equation output once, from the selected month onward.
Change the revenue relationship itself. Use the variables below, numbers, + - * / and parentheses. Fractions such as uptime are already converted from percentages.
Month 1 includes one compounding step from the starting hashprice. A constant equation is allowed. Removing a variable removes its effect on revenue. Electricity always follows power × 24 hours × 30 days × energy price × uptime; maintenance and purchase cost are separate. Limits: 480 characters, 160 tokens, 24 nesting levels, finite intermediate values within ±1 billion.
| Month | Revenue | Energy | Maintenance | Net cashflow | Accumulated |
|---|
Ledger unavailable until the scenario is valid.
04 / READ BEFORE YOU DECIDE
Exploration, not financial advice.
No vendor rating or purchase recommendation.
OneMiners: Bitmain Antminer S21 Pro 234 TH/s ↗. Captured 21 Oct 2026, 13:03 UTC: $1,799, “in stock”, air-cooled, 3,510 W. Availability and price are unverified beyond that snapshot, and terms may change. No trust endorsement. Tax, shipping and deployment are excluded.
stratumv2.com / dmnd.work hashprice ↗: 0.03735517789556459 USD/TH/day at 2026-10-21T13:02:39.895Z. Provider documentation ↗. Saved data can become stale. A requested refresh is accepted only with a valid timestamp no more than 24 hours old. It is a single observation, never a continuous live feed.
30-day months; no discounting, financing or resale value. Uptime reduces revenue and power use equally; no idle power or cooling overhead is added. Repairs beyond your maintenance allowance, tax, shipping and deployment are excluded. BTC price, difficulty and transaction-fee dynamics are compressed into your revenue trend. The halving adjustment is optional and simplified. No calibrated probability model is used.