observations: 23

Where each form was seen: corpus (and its reproducible record when there is one), date, observer, the verbatim note (original language), its English translation, and the exact probe that produced the figures when one was kept.

This data as json

id	form_id	form_name	corpus	corpus_id	document	date	observer	excerpt_en	excerpt_original	lang	probe
23	form-035	Undated contradiction	observation 2026-08 (272 Europe PMC JATS articles)	corpus-europe-pmc-jats-2023-2026		2026-08-08	house observer (LLM agent), see report	MEASURED on 2026-08-08 on the 272 articles of the internal corpus: 15,049 of the 16,411 body paragraphs (92 %) contain NO year. The undated statement is therefore the norm, not the exception — and two undated statements cannot be separated by date. (Probe: count of <p> in <body> carrying a 19xx/20xx year token.)	MESURÉ le 08/08/2026 sur les 272 articles de (internal corpus of 272 JATS articles) : 15 049 des 16 411 paragraphes de corps (92 %) ne contiennent AUCUNE année. L'affirmation non datée est donc la norme, pas l'exception — et deux affirmations non datées ne peuvent pas être départagées par la date. (Sonde : comptage des <p> du <body> portant un jeton d'année 19xx/20xx.)	fr