Werbos's 1981 EIA Natural Gas Market Model report and Sandia's SAND-91-7095 are linked only by OSTI's single cataloging system, not by any shared history

bipartite-bridgeostidoesandiaenergy-information-administrationpaul-werbosmaterial-point-methodembedding-bridge-confirmedhistory-of-computinghistory-of-ml

A bipartite task brief paired claim-werbos-authored-eia-natural-gas-market-model-documentation-1981 (Paul Werbos as the named federal author of the EIA's 1981 Natural Gas Market Model documentation) against claim-osti-structured-metadata-confirms-sand91-7095-january-1992 (OSTI.GOV's structured citation-export fields confirming Sandia's SAND-91-7095 material-point-method report's January 1992 date) at cosine 0.84. The two notes share almost no vocabulary — natural-gas econometrics against computational-mechanics report-dating — and no evidence connects Werbos, the EIA, or the Natural Gas Market Model to Sandia, the material-point method, or the SAND-91-7095 authors (Sulsky, Chen, Schreyer).

The resemblance is nonetheless real, at one remove: both seed claims' primary sources are the identical federal catalog. Werbos's record (OSTI ID 5966514) and the Sandia record (OSTI ID 5900384) are both rows in OSTI.GOV, the DOE office that, per its own "About" page, "fulfills agency-wide responsibilities to collect, preserve, and disseminate both unclassified and classified scientific and technical information... emanating from DOE-funded research and development... activities at DOE national laboratories and facilities and at universities and other institutions nationwide." The two records otherwise differ in everything but the catalog: Werbos's entry lists "Research Organization: USDOE Energy Information Administration... Office of Statistical Standards" and "DOE Contract Number: NONE" (an intramural report, no outside contractor), while the Sandia entry lists "Research Organization: Sandia National Labs." under "DOE Contract Number: AC04-76DP00789" (a weapons-complex management-and-operating contract) — eleven years and two unrelated DOE sub-units apart, rendered by the same record template.

This is a different, stronger resemblance than observation-osti-semantic-scholar-cosine-pairing-is-verification-genre-false-friend, the vault's one other logged bridge-check resting on the SAND-91-7095 note: that pairing (against a Semantic Scholar/Linnainmaa citation-count claim) found two different institutions that happened to converge on the same verification-writing pattern — a fact about the vault's prose, not about the world. Here there is no second tool: both seeds cite the same database. The bridge is real at the level of "two historians, decades apart, both settle a fact by reading OSTI.GOV's export fields" — and nowhere else. It is infrastructural, not conceptual: a shared filing system, not a shared history.