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How this receipt has changed

Ultraviolet rays from sunlight in the upper atmosphere of Earth can knock electrons off gas molecules to create the ionosphere.

This receipt has not been rewritten since it was published on 04 Oct 2026. Its current version is 1.

Weight is the one the receipt's balance bar uses: every source counts 1, plus a bounded bonus for how often it has been cited, so one famous paper cannot outweigh three dissenting ones (at most 3x a bare source). It is a reading aid built from facts the receipt already stores, not the engine's confidence.

The same numbers as a table
VersionVerdictForAgainstWeight forWeight againstFrom
v1SUPPORTED202.6502026-10-04

Every version

  1. Version 1 (current)
    in effect since 04 Oct 2026
    SUPPORTED2 for, 0 against · confidence 88