28 unordered seams; every occurrence has degree seven.
Linear Infinity to the twenty-eight-seam reader — exact incidence audit Eight different occurrence addresses from two four-phase cycles. All 28 unordered edges appear once, colored by the seven source matchings. Positions are a declared rational projection of the phase-and-lift display, not a physical metric. Crossings do not create vertices. Linear Infinity → eight occurrences → 28 seams F⁴(p, z) = (p, Lₐₓz) Λ(Lₐₓz) = Λ(z) + T n = 4c + p Technical incidence drawing · all 28 pairs · source color assignment preserved 0 1 2 3 4 5 6 7 cycle c: 0, 1, 2, 3 cycle c + 1: 4, 5, 6, 7 6 within the first cycle + 16 between cycles + 6 within the next cycle = 28 0 1 2 3 4 5 6 Seven matchings × four edges. Projection and spacing are display choices; crossings are not vertices.
Exact coordinate and source contract

Occurrence i=4ℓ+p, ℓ∈{0,1}, p∈{0,1,2,3}. The declared spatial display is (cos(πp/2),sin(πp/2),ℓ). The drawing applies the rational projection [[1,1/5,14/5],[1/7,1,3/5]]. Pixel spacing carries no physical metric.

For matching construction only, address 7 is relabeled ∞; addresses 0–6 retain their labels. This is the assignment used by the supplied published Four-Phase Addressing SVG. Scan q uses (a,b)=(q mod7,q mod4). Occurrence index n and scan coordinate q retain separate roles.

Sources: Linear Infinity, canonical 0.1, pp.2–3; Mirror Escapement Time Lift, §V; Language Mechanics 011 v0.2, §§1–7. The exact edge set and source palette assignments are checked by the accompanying Python verifier.