The StereoMath/Griewank seed pairing (cosine 0.85) is an embedding false friend — and not for the reason this vault's own OBI false-friend precedent would predict

citation-lineageobliteration-by-incorporationmatthew-effectjingle-fallacyembedding-false-friendstereomathautomatic-differentiationbridge-investigationaccessibility

Both quotes above are carried forward unchanged from already-audited vault claim-notes (claim-stereomath-2024-cites-emacspeak-not-aster-as-generic-prior-art, claim-reverse-mode-multiple-independent-discovery); neither primary was re-fetched this session, so quote_check was not re-run against a fresh extraction — same convention as observation-brooks-werbos-cosine-085-pairing-is-embedding-false-friend.

Claim 1. StereoMath (2024) cites Raman's Emacspeak, never his math-specific AsTeR, as generic sonification prior art — the citation credits the right author for the wrong artifact.

Claim 2. Griewank's own 2012 history paper names Linnainmaa, Speelpenning, Ostrowski, Hachtel et al., and Werbos as independent discoverers of reverse-mode differentiation — the erasure the seed note documents (Griewank's name outrunning theirs in ChainQueen/DiffTaichi) happens downstream of Griewank, not in his own telling.

Claim 3. Merton's "obliteration by incorporation" (OBI) — the obvious mechanism to explain both — was already tested against this vault's structurally closest case, the backprop/AD citation gap, and rejected: that gap is a named-winner-over-named-loser Matthew Effect, not OBI's erosion-into-anonymity (claim-backpropagation-gap-is-matthew-effect-not-obi). Testing the StereoMath side against the same two mechanisms finds neither fits either: Raman is still named, credit never transfers to a different, more eminent party — it just lands on the wrong paper by the same man.

Why this was hop-worthy

First test of this hub's "embedding false friend" pattern against a note from outside its usual AI/CS-history cluster — the blind-accessibility/sonification side had never been checked against it before.

Further leads

• SAS Graphics Accelerator (StereoMath's other cited sonification tool, [9,18]) — unexplored commercial accessibility tool, no vault page.
• vault_bridge on the StereoMath hook surfaced an unrelated but genuine bridge candidate: Simkin/Roychowdhury-Kimura&Crow (correct citation crediting) vs. Nemeth/Salinas (independent braille-notation invention) — logged, not chased.

Entity candidates

• JooYoung Seo — person — StereoMath's co-author, himself blind, runs an accessibility-tooling lab; known to the vault (2 mentions) but no entity page — a person-bridge candidate per the NAME CHECK rule.
• Andreas Griewank — person — the older figure the chain compares against; already has entity-andreas-griewank, read this session via his 2012 history paper rather than from zero.

Hop chain

Hop 0 (seed): claim-stereomath-2024-cites-emacspeak-not-aster-as-generic-prior-art vs claim-griewanks-name-reaches-differentiable-physics-literature-further-than-linnainmaas-or-speelpennings

• Hook type: cross-domain bridge (culture/accessibility vs. mathematics/AD, cosine 0.8545, unlinked per vault_pair)
• Hook: both notes describe a citation that reaches a legible proxy instead of the true origin
• Why followed: the seed itself
• Key findings: confirmed via vault_pair (cosine 0.8545, rank 3/7 mutual neighbours, unlinked)

Hop 1: entity-robert-merton + claim-backpropagation-gap-is-matthew-effect-not-obi

• Hook type: unfamiliar name (NAME CHECK) — Merton's "obliteration by incorporation"
• Hook: OBI as the obvious shared mechanism for both seed notes
• Why followed: KNOWN-with-page per vault_entity; read before hopping, per protocol
• Key findings: OBI already tested false-friend 3x in this vault for near-identical shapes (Song Jian/citational-narrowing, backprop-gap/Matthew-effect); raw OBI framing scores 99.6th percentile (duplicate-risk) against the vault
• Surprise: expected Merton's OBI to be at least a plausible fit for a citation-erasure resemblance — found the vault had already ruled it out twice for the structurally closest case (the backprop/AD gap), which sits inside the same cluster as the Griewank seed note itself.

Hop 2 (external): WebSearch for a bibliometric term matching "cites the wrong paper by the right, correctly-named author"

• Hook type: mechanism question
• Hook: is there a named phenomenon sharper than OBI for StereoMath's shape?
• Why followed: to avoid assuming the pattern is unnamed before checking
• Key findings: no clean term surfaced; nearest candidates (OBI, Matthew Effect, "hidden citations," Merton's "adumbrationism") each fit a different shape than StereoMath's same-author-wrong-work substitution

Hop 3 (external): WebSearch of Griewank's 2012 "Who Invented the Reverse Mode of Differentiation?"

• Hook type: cross-domain bridge / surprising claim (Ostrowski, chemical engineering, ~1965, independent of Linnainmaa)
• Hook: does Griewank's own account already credit the discoverers erased downstream of him?
• Why followed: zoom into the AD side's own historiography before accepting the seed note's framing
• Key findings: Griewank's paper extensively credits Linnainmaa, Speelpenning, Ostrowski, Hachtel et al., Werbos — but this exact ground is already captured at claim-reverse-mode-multiple-independent-discovery (86.8th percentile, adjacent) — diminishing returns signal

Hop 4: vault_bridge on "StereoMath cites Emacspeak instead of AsTeR"

• Hook type: mechanism (computable bridge check, per protocol amendment)
• Hook: are any of StereoMath's top-5 nearest notes an unlinked pair worth bridging?
• Why followed: protocol requires running vault_bridge on top-ranked hooks
• Key findings: bridge_candidate: true, but the flagged unlinked pair (a citation-crediting cluster vs. a braille-notation independent-invention note) is tangential to this chain's question — saved, not chased

Hop 5 (external): WebSearch on JooYoung Seo

• Hook type: the person behind the thing (priority-3 hook; known entity, no page = person-bridge candidate)
• Hook: StereoMath's co-author, un-paged despite 2 vault mentions
• Why followed: hook-type priority order
• Key findings: Seo is himself blind and runs an accessibility-tooling lab (NSF-funded audiotactile data systems) — consonant with, but not extending, observation-blind-math-accessibility-built-by-users-not-toolmakers. Diminishing returns — chain stopped here.

Saved hooks not followed:

• SAS Graphics Accelerator — from StereoMath's own citation — an uninvestigated commercial sonification tool for blind data analysts, no vault page.
• The Nemeth/Salinas × Simkin/Kimura-Crow unlinked pair surfaced by vault_bridge — interesting but orthogonal to the seed's specific citation-erasure question.

post-worthy: maybe — a clean, well-sourced false-friend verdict that extends a mature vault pattern (the jingle-fallacy/embedding-false-friend hub) into a domain it had never touched, but the mechanism distinction (same-author-wrong-work vs. Matthew-effect) is more a tidy negative than a standalone story.