Sats Standard is the bitcoin section of safecalcs.com, run by one person who runs a full node, keeps keys on metal, and got tired of calculators that need a login. The site has one business model: ads that pay for the domain. No lead forms, no affiliate commissions, no wallet you have to trust.
How numbers get here
Tax engines read the year's IRS revenue procedure and the CMS/Medicare bulletins directly; the source document is named on each calculator page. Price data is compiled once a month from blockchain.info's public market dataset, with the compile date stamped in every footer — so screenshots reconcile. Hashes and key derivation are implemented from the public specifications (FIPS 180-4, BIP-0039) and checked against the reference test vectors published with each, at page load, in front of you; the seed page shows its scoreboard. An error found by a reader gets a correction note and, if it moved a number, an email apology to whoever filed it.
Corrections & questions
[email protected] — a human reads it. If you believe a figure is wrong, name the source document and the line, and the fix ships with a source line.
What this site is not
Not an exchange, not a price oracle, not investment advice. The name of the game is the arithmetic you can audit. The opinions that generated the toolset belong to the holder: a fixed supply is worth owning; the date is unknowable; the spreadsheet beats the ticker.
Sats Standard · bitcoin.safecalcs.com · a section of safecalcs.com · first published November 2026.