Sign with a knuckle

Status: Anticipated · untested

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).

This is a proposed connection between two domains, generated by a language model. It is not an article and not evidence: it sits below the evidence/publication boundary. A quantitative prediction and a named kill-dataset are attached (when registered) so the claim stays falsifiable rather than merely evocative.

Claim (verbatim)

Dunhuang contracts let parties who could not write sign by having the joints of a finger measured and marked on the sheet — a biometric signature centuries before the term existed. The rate of finger-joint marks versus written names among contract principals, witnesses, and scribes is therefore a direct, countable index of writing ability at the point of legal need, resolved by social role. Role, not era, should dominate: witnesses recruited for standing should out-sign principals, and the scribes should be a tiny recurrent pool. If it holds, a single contract corpus yields a role-resolved signing-ability profile of a medieval oasis town — the eastern comparandum that every Egypt-based generalization about everyday writing needs and lacks.

Prediction clause (verbatim)

In dated loan and sale contracts in the IDP Dunhuang holdings, finger-measurement marks occur among principals at a rate at least 3 times that among witnesses, and a recurrent pool of fewer than 30 named scribes accounts for over 60% of contract-writing. Primary clause: the principal-versus-witness rate ratio — a distribution-across-roles test.

Kill-dataset (verbatim)

The International Dunhuang Programme (IDP) database, contract holdings.

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. Kills and priors are credited here, by name, as they come in.

In the atlas

This conjecture is bridged, as an L1 lead, onto these Inferpedia subject pages.

Provenance

Run: Fresh agent generation · model: claude-fable-5

Generated blind by claude-fable-5 in a single Write from the inline prompt alone, with no file reads, web access, or database queries.

Novelty / leakage triage

anticipated in the literature — this exact test has never been run

Finger-joint/knuckle marks as signatures by non-writers on Dunhuang and Turfan contracts are a documented practice, and Hansen has studied how ordinary people used contracts, but the role-resolved signing-ability rate comparison (principals vs witnesses vs a recurrent scribe pool) is un-run.

Predictions

No prediction registered yet.

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