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.
This is a fiction/fan codex: entries describe an in-universe canon. Our audits check canon and internal consistency — external fact-checking does not apply the way it does on real-subject codexes.
Last full accuracy audit: 2026-07-27 · 30 entries checked · 11 flagged · 26 issues confirmed · 9 corrected · 17 still open
Dustin Henderson — In Season Four, Hopper communicates with Joyce via voice radio in English after being found in the Russian prison camp; there is no canon plot point where he uses Morse code to signal her instead of deciphering Russian codes.
Joyce Byers — Steve did not physically enter the Upside Down in Season 4; he remained in Hawkins fighting Demobats, while only Nancy and Eddie crossed through the gate at the Creel House.
Joyce Byers — The Christmas light communication idea was conceived by the Duffer Brothers themselves, rather than being suggested by Winona Ryder based on her childhood experiences.
Erica Sinclair — Erica Sinclair debuted in Season 3; claiming she survived 'every season' is factually incorrect as she was not present in Seasons 1 and 2.
Erica Sinclair — Listing 'Interrogation' as a notable skill for Erica is canonically inaccurate; key interrogation scenes (such as with the Russian guard) were led by Dustin Henderson and Steve Harrington.
The Sinclair Family — Claim that Larry Sinclair is employed at Hawkins National Laboratory: Larry Sinclair does not work at the lab; he is a civilian with no canonical connection to the facility.
The Sinclair Family — Claim that the Sinclair living room became a strategic outpost/sanctuary for planning: The Party primarily used the Wheeler and Byers residences as their headquarters; the Sinclair home was not utilized as a base of operations.
The Creel Family — The entry states Henry escaped into the wilderness after the 1959 massacre; canonically, he was captured by Dr. Martin Brenner and held at Hawkins National Laboratory as Subject 001 until 1979.
The Creel Family — The entry text ends abruptly with an incomplete sentence ('His actions in that house were'), rendering the information factually incomplete.
Henry Creel Becoming Vecna — Nancy Wheeler identified the name 'Vecna' from a library book regarding mythology/occult patterns, not a Dungeons & Dragons book; Mike Wheeler confirmed the D&D connection after she found it.
Henry Creel Becoming Vecna — Henry Creel manipulated children while posing as an orderly named Patrick; stating he acted 'rather than acting as head orderly or staff' contradicts his undercover role within the laboratory.
Demogorgon Biological Traits — First Appearance is listed as Season 1, Episode 7 'Chapter Seven: The Bathtub', but the creature first physically appears in Season 1, Episode 6 'Chapter Six: The Monster' (during Barb's abduction) and its face is fully revealed in Episode 8.
Demogorgon Biological Traits — The entry states Mike Wheeler used the name to describe the threat; canonically, it was Dustin who suggested the name 'Demogorgon' during a D&D session in Season 1, Episode 4, though Mike (the DM) accepted it.
Hawkins National Laboratory History — The entry claims the first breach occurred in November 1983; canon establishes the initial gate was opened by Eleven at Hawkins Lab during an experiment in 1979.
Hawkins National Laboratory History — The entry states the laboratory 'did not cause the initial rift'; canon confirms the experiments conducted at the facility directly caused the first breach into the Upside Down.
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