AI-generated conjecture · below the evidence/publication boundary
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The mask grips hardest at the grave
Status is derived only from the shepherd-authored triage/prediction data above -- community submissions and claims are a separate overlay and can never change it (see the participation panel below).
Claim (verbatim)
Ki no Tsurayuki opens the Tosa Diary in a woman's voice, and the fiction is usually read as a licence to write kana prose. But the diary circles one wound — the daughter who died in Tosa — and the interiority claim is that the mask was grief-equipment: the female persona existed to make lament utterable by a male ex-governor, so it will be gripped most tightly exactly where lament happens. In the technical and ceremonial stretches, where the mask does no emotional work, the official's Chinese-trained lexical habits should leak back through it. Prediction: segmenting the Tosa nikki into its bereavement passages and the remainder, Sino-Japanese (kango) token density per 100 words in the bereavement passages is at most half the density of the remainder; primary clause: the halving of kango density in the bereavement passages. Kill: the digitized Tosa nikki at the University of Virginia's Japanese Text Initiative and Aozora Bunko, with a standard annotated edition (Shin Nihon Koten Bungaku Taikei) adjudicating lexical origin; the computation is a lexical-origin tagging and per-segment kango density comparison.
Prediction clause (verbatim)
Prediction: segmenting the Tosa nikki into its bereavement passages and the remainder, Sino-Japanese (kango) token density per 100 words in the bereavement passages is at most half the density of the remainder; primary clause: the halving of kango density in the bereavement passages.
Kill-dataset (verbatim)
Kill: the digitized Tosa nikki at the University of Virginia's Japanese Text Initiative and Aozora Bunko, with a standard annotated edition (Shin Nihon Koten Bungaku Taikei) adjudicating lexical origin; the computation is a lexical-origin tagging and per-segment kango density comparison.
Nobody has run this test. The kill-data is named above. If you can run it — or you know the paper that already settles it — claim the kill or submit the prior scholarship. Kills and prior scholarship are credited here, by name, as they come in.
Provenance
Run: Fresh agent generation · model: claude-fable-5
Fresh blind generation instance (prompt file and existing-titles list only; no repository, web, or prior-art access), 2026-07-16, campaign Minds & Works wave M01.
Novelty / leakage triage
anticipated in the literature — this exact test has never been run
The Tosa nikki's female persona and its focus on the dead daughter are the core of its scholarship, but the specific prediction that Sino-Japanese (kango) density halves in the bereavement passages was not located.
- L.K. Miyake and G. Heldt, studies of the Tosa nikki persona; SNKBT edition
Predictions
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