The Receptive Environment of Operational Semiotics: A Constituency and Citation Map for Charls Pearson's Program (deposit #1542, EA-TOS-RECEPTION-01 v1.0, 25 August 2026) is the reception-study companion to the reverse-disambiguation packet EA-MPAI-TOS-01: before the archive can speak for Pearson's entity at the absorbing node, it maps who actually took the Theory of Operational Semiotics up, in what form, through which institutions — and who did not. The deposit separates verification classes explicitly, in prose and in an attached machine-readable node-edge graph carrying a verification field on every element. Verified in-session against fetched sources: Pearson held the first Ph.D. in semiotics granted by an American university (Georgia Tech, 1977); the SSA institutional spine (founding member, Executive Committee, three SIGs, plus the ASIS Foundations-of-Information-Science SIG); the Hatten collaboration on musical analogues of linguistic aspect; the late China role including directed graduate theses; and the 2015 Springer Handbook chapter (pp. 135-180, beside Deely and Petrilli) as the mature restatement of USST-plus-TOS — establishing that 1998 is not the terminal statement. Carried at reported status pending verification: the five-class partisan typology, from Cary Campbell as direct continuator (the 2019 Chinese Semiotic Studies Peirce section, the 2020 preservation interview, the 2021 in-memoriam USST application) through foundational collaborators (Slamecka, Day), institutional custodians (WATS, the Chinese network), and pedagogical adopters (Brazgovskaya), to Pearson himself — whose recursive self-elaboration (1998, the 2008 legal extension, the 2015 restatement) constitutes most of TOS's visible development, with the reported two-citation bibliometric figure flagged as pattern rather than ground truth. The sharpest result is negative: no identified evidence of TOS uptake in operational research, organizational semiotics, AI/ML, semiotic management, or generic action-semiotics — exactly the five neighborhoods the audited composition of 25 August merged into its umbrella entity — so the MULTI_ATTRACTOR_ENTITY_MERGER classification of #1541 is strengthened from the Pearson side of the boundary: the merger has no basis even in the merged theory's own reception. The strategic conclusion is stated for the next packet in the line: restore Pearson rather than defeat him — give Operational Semiotics more exact standing than composition currently grants it, so the boundary becomes a joint provenance defense of both lineages against averaging. Standing work registered: the Chinese thesis-lineage dig, the verification pass on all reported nodes, citation extraction from the 2015 chapter's bibliography, and the examination of Peirce directly.