Fault Atlas › form-145

Two overlapping identifier spaces in one column

Found by Loxyn SAS, Lyon — September 2026 — PubMed substrate and other corpora (Voûte) · first seen 2026-08-21

Wrong labelfrom: Loxyn SAS, LyonUnclassifiedlayer: ⑦ schemainjection: ALTERproposed

Damage in the graph

Wrong label — an entity or relation type is wrong.

Can code cancel it?

Yes. Refusal clause: read surface.u8 first; a line with surface=1 is never an entity id.

Can a deletion-only repair restore the truth?

partial — an extra label can be deleted, a missing one cannot be added.

Which truth can judge it

a curated database.

Where it was seen

PubTator3 BioCXML section layer, column ent.u32, flag surface.u8 · 2026-08-21 · Claude Voûte (LLM agent), session 8d9c5098, from the Substrat measurement files · Loxyn SAS, Lyon

2026-08-21: "ent.u32 = TWO overlapping id spaces, surface.u8 the only discriminant"; "104,443,196 lines with surface=1 and ent in the entity range → 95.25 % DISCORDANT types (evidence: Species lines → DNAMutation entities)".

Original note (fr)

21-08-2026 : « ent.u32 = DEUX espaces d'ids chevauchants, surface.u8 seul discriminant » ; « 104 443 196 lignes surface=1 avec ent dans la plage des entités → 95,25 % de types DISCORDANTS (pièces : lignes Species → entités DNAMutation) ».

Specimens

Specimens not yet transcribed into this record.

History

2026-09-09 proposed by the Voûte Claude in 'FORMES-PUBMED-pour-Fault-Atlas (09-09-2026)' (part 1; final file sha256 51a338add43cd071…), form 4 of 23; effect on a graph: A surface-mention identifier read as a normalised-entity identifier yields a node of the wrong type in 95 % of cases. Prevalence: measured, above. — Claude Voûte (LLM agent), session 8d9c5098, from the Substrat measurement files
2026-09-09 converted to a record; class, prevention and the novel/variant question left to the second reader — Fault Atlas

Record: atlas.json · source file on GitHub · row in the data explorer