Proof-of-work in limestone

Cross-period Dated c. 1200 CE – 1800 CE Oceania & the Pacific

Status: Already answered

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 conjecture imagined by a language model — drawn from its trained weights and held to falsifiability, novelty, and plausibility, not to any one method: it may join two or more fields, or none. 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)

Proof-of-work in limestone. Proof-of-work monetary theory says a currency's value can rest on verifiable production difficulty; this conjecture reads Yapese stone money as its pre-modern instance. Rai stones were quarried overseas and sailed to Yap, and the quarrying-and-transport work embodied in a stone scales faster than its diameter, so value should be superlinear in size — log value rising against log diameter at a slope well above 2, in the 2.3-3.5 range. The system also priced verifiable history, a blockchain-like provenance premium: stones with recorded transport misfortunes or famous voyages should command premia of half again or more over size-matched stones. And when cheap Western shipping arrived after the 1870s it broke the difficulty adjustment exactly as the theory predicts: stones moved by Western ships should trade at discounts of three-fifths or more at equal size. Value merely linear in size, or no provenance premium, kills it.

Prediction clause (verbatim)

In early ethnographic valuations, log value on log diameter has a slope of 2.3-3.5; stones with recorded transport misfortunes or famous voyages command >= 50% premia over size-matched stones; and post-1870s stones moved by Western ships trade at >= 60% discounts at equal size. Value linear in size, or no provenance premium, kills it.

Kill-dataset (verbatim)

Kill: measured rai corpora from the Yap archaeological surveys joined to the Furness and Muller ethnographic exchange valuations.

In the kill-dataset registry:

GIS/LiDAR Archaeological Survey & Wreck/Shipwreck Databases

How this item is catalogued

Catalogue tags are curatorial metadata that make the conjecture findable. They are not findings, not a novelty verdict, and naming a source family is not a promise that the data exist or are accessible. Each dimension below says whether it was assigned, reviewed with none applying, uncertain, or not yet reviewed, and who recorded it.

Place & era tags — Assigned: Oceania & the Pacific; Cross-period Tagged by claude-opus-4-8
Dating — Phenomenon: Dated c. 1200 CE – 1800 CE Yapese rai stone-money tradition; origin genuinely disputed (candidates from c.1200-1600 CE) through post-1870s Western-shipping disruption. Tagged by claude-sonnet-5 + claude-fable-5 (gate)
Subject — Assigned: Money & economy rai stone valuation by size and provenance premium: a money and trust-token claim (older oral-written boundary review: the Oceania source-ecology bridge no longer routes to the oral-written head) Tagged by claude-fable-5-1 (driver, lane 1da5; requested max effort, runtime not independently attested)
Finer subject topic — Not yet reviewed
Claim level — Assigned: World claim Tagged by earlier curation lane (link provenance on record)
Method — Assigned: Costly signaling and verification Tagged by earlier curation lane (link provenance on record)
Evidence source — Assigned: Archaeological survey Tagged by earlier curation lane (link provenance on record)
Research stage — Idea — no test designed

On Inferpedia

This conjecture is linked to the following pages on Inferpedia, an encyclopedia of the missing — working atlas pages, some still early scaffolding.

Provenance

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

Generated by a fresh Fable-tier instance at maximum effort with generation-first blindness (no repo/web/DB access); titles-only knowledge of existing items, embedded in titles_supplied per the batch-2 lane rule; prompt pre-committed in docs/GOAL_CONJECTURES_BATCH3_20260705.md (b043140). Novelty unverified by construction. titles_supplied stripped to the committed sidecar conjecture_fresh_fablemax_batch3_titles_supplied_20260705.md at import (schema additionalProperties:false; relaxation queued).

Novelty / leakage triage

already answered in the literature

All three of the conjecture's mechanisms are the standard ethnographic account of rai: value scaling with quarrying/transport difficulty (Fitzpatrick's quarrying archaeology), provenance-story premia (the seafloor stone), and the O'Keefe-era discount for Western-shipped stones — plus explicitly economic treatments of Yap stone money exist. The fitted elasticities were not located, but the conjecture restates established knowledge in regression clothing.

Sources cited by the triage

Fitzpatrick's Palau quarry archaeology (via rai overview) — Quarrying-difficulty scholarship
'Stone Money of Yap as an Early Form of Money in the Economic Sense' — Existing economic framing

Predictions

No prediction registered yet.

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