Mathematics And Cryptography Codexery — Data & Quality

We publish our audit record because accuracy claims should be checkable. Every entry on this site runs through an automated fact-audit pipeline (accuracy audit → source-grounded repair → visual QA); this page is generated from that pipeline's own report, not written by hand.

Last full accuracy audit: 2026-08-29 · 8 entries checked · 4 flagged · 6 issues confirmed · 4 corrected · 2 still open

Recent findings (audit lane, verbatim)

Ronald Fisher — The entry states Fisher's 1921 paper has been described as equivalent to... but the paper in question is actually from 1922.

Ronald Fisher — The entry says Fisher's work on information theory ran parallel to that of Claude Shannon and Norbert Wiener, which mischaracterizes the timeline (Fisher's key work predates theirs by decades).

Samuel Eilenberg — The thesis title 'On the Topological Applications of Maps on a Circle' is incorrect; the actual title is 'O pewnych własnościach topologicznych przekształceń okręgu' (Polish), often translated as 'On the Topological Properties of Transformations of a Circle'.

Saunders Mac Lane — Mac Lane's birth name was Leslie Saunders MacLane (no space), and he legally changed it to 'Mac Lane' (with a space) in the 1940s, not because of his first wife's typing difficulty; the story about his wife's typing is apocryphal, and the actual reason was to

William Rowan Hamilton — The entry states Hamilton was the fourth of nine children, but he was actually the fourth of eight children.

William Rowan Hamilton — The entry says Hamilton completed his first three original mathematical papers in late 1822; however, historical records indicate he wrote his first paper in 1822 but the three papers were presented to the Royal Irish Academy in 1823 and 1824, not all in late

Open data

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Corrections

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