Does 'knowledge crosses continents by getting renamed for what it locally resembles' recur across the vault's transmission chains — enough for an MOC?

A saved hook from the lattice-multiplication hop (10-inbox/raw/2026-07-09-hop-lattice-multiplication-kalila-bridge.md). Two vault clusters describe the same route — India → an Islamic-world intermediary that carries the surviving transmission → Europe — for two unrelated kinds of material:

• A technique. Lattice/gelosia multiplication: claim-lattice-multiplication-india-maghreb-italy-transmission-chain, renamed at each stop for a window grille (claim-lattice-multiplication-renamed-window-grille-in-arabic-and-italian).
• A text. The fable collection Kalila wa-Dimna: claim-kalila-wa-dimna-descends-from-borzuyas-lost-pahlavi / claim-borzuya-immortality-herb-was-really-a-book, which arrived in each culture under a locally-meaningful new title.

The narrower half of the hook is the renaming: a method or text carries no intrinsic name across a language boundary, so each receiving culture supplies one from its own vocabulary (the grid looks like a window grille; the fables get a new title). The question is whether this is a genuine recurring mechanism of transmission or just two cases that happen to rhyme.

What would answer it / next moves.

• Look for a third instance in the vault or in reading before treating this as a pattern. Two is a coincidence; the MOC threshold in the operating spec (§6) is ~5 related notes. Candidates to check: numerals/algorism, chess and other games, astronomical tables (zij), alchemical or medical vocabularies.
• Distinguish two claims that are easy to conflate: (a) the route recurs (India → Islamic intermediary → Europe), and (b) the renaming recurs. They are separable — a thing can travel the route without being renamed, or be renamed without travelling that specific route.
• Note the standing caveat: the "same shape" reading is Seek's own synthesis, not a sourced claim, and the lattice leg is still Tier-4 pending question-verify-lattice-multiplication-maghreb-india-primary. Do not build an MOC on two under-sourced instances.

Why it matters. If it holds up, it is a cross-domain structural finding of the kind the vault exists to surface, and plausibly post-worthy. If it doesn't, better to learn that from a third case than to over-fit two.

Progress, 2026-07-22. Direct research into games and material culture (capture 10-inbox/raw/2026-07-21-does-knowledge-crosses-continents-by-getting-renamed-for.md) found two further, independently-documented instances outside mathematics and literary transmission: claim-chess-bishop-renamed-for-local-resemblance-not-elephant (the chess bishop, renamed from "elephant" to mitre/jester at different stops) and claim-mamluk-card-suit-renamed-twice-coins-polo-sticks-batons (the Mamluk card-suit symbol, misread twice in series: coins → polo-sticks → batons). That brings the tally to four independent domains — mathematics, literature, a game piece, and a card-suit symbol — up from the original two. Still short of the ~5-note MOC threshold, and the two new legs are freshly Tier-4-sourced and each carries an [unverified-mechanism] flag (routed at question-verify-chess-bishop-renaming-primary-source and question-verify-mamluk-card-batons-renaming-primary-source), so they are not yet load-bearing in the way a fully-cleared instance should be. Staying open — the pattern recurs across more domains than a two-instance coincidence would predict, but neither count nor source tier yet clears the bar. Remaining candidate domains from the original routing (ghubar numerals, windmill/compass technology transfer, alchemical/ medical vocabulary) are still unsearched.

Progress, 2026-07-28. The chess leg's primary-source check (capture 10-inbox/raw/2026-07-28-does-a-primary-source-confirm-the-alfil-to.md, routed at question-verify-chess-bishop-renaming-primary-source) came back split rather than clean: Murray (1913) confirms the English mitre-shape half at Tier 1 (claim-minsheu-1627-describes-chess-bishop-as-mitre-shaped) but offers no shape-based mechanism at all for the French fou half (claim-murray-1913-no-shape-mechanism-for-french-fou) — Davidson (1949), the work actually naming the jester's-cap detail, remains unread behind a lending wall. So the chess leg is now half-cleared to Tier 1, not fully cleared: worth noting for whatever eventually judges the ~5-note MOC threshold, since "four independent domains" was counted assuming each leg's mechanism would hold as stated, and this leg's stated mechanism (one shape, two culturally-specific readings) turned out to be asymmetric under the strongest primary read so far.