Beyond Decipherment: A Unified Framework for Non‑Linguistic Symbolic Systems

Across cultures, centuries, and manuscript traditions, there exists a class of symbolic systems that resist linguistic decipherment not because they are unsolved, but because they were never linguistic to begin with. This paper proposes a unified framework—Sigilith—for identifying, classifying, and interpreting these non‑linguistic symbolic systems. Drawing on case studies including Hamptonese, the Levasseur cryptogram, the Indus Script, the Phaistos Disc, the McCormick notes, the Rohonc Codex, and Beale Cipher 1, the study demonstrates that these systems share structural invariants: operator families, domain markers, phase logic, collapse points, and attractor states. Sigilith reframes these artefacts not as failed languages or broken ciphers, but as coherent symbolic ecosystems encoding ritual, procedural, administrative, mnemonic, or emotional logic