Where the hh self-energy enters the ch projection

Reading the ledger ledgers/P13_ch_dependency_rows.json (a computed control, not an assertion), the graphs D01, D03 occur in exactly one row: $(S_0,{{\Gamma }_1}^{[2]})s_{2}K:K\cdot c$, with ${\Gamma }_1$ pattern $h^2$. The same row also holds D02, D12 (zero, p15) and D11 (not evaluated). The slot functional is

The operator $sh$ is read off the $K\cdot c$ monomial of the frozen ${S_{\Psi }}^{(0)}$ (16 nonzero components). Its covariant fit is exact and unique: $(sh{)}_{(mn)\nu }=\frac{i}{2}({\eta }_{m\nu }{p}_n+{\eta }_{n\nu }{p}_m)$. It is therefore LONGITUDINAL in $(mn)$.