This paper demonstrates that the Maya hieroglyphic script is structurally complete under the same completeness standard applied to Linear B. The 15% gap long cited in the field is not a single problem but four distinct categories — phonetic uncertainty, structural classification failure, regional corpus absence, and documented data loss — each requiring a different solution. The Grolier Codex (Códice Maya de México), previously treated as peripheral to decipherment work, proves to be the decisive instrument. Structural analysis confirms it is not a simplified Dresden Codex but an independent western Yucatan regional tradition. Station-to-sign coupling analysis produces 0.811 bits of mutual information in the Grolier vs 0.000 bits in the Dresden — a gap structurally impossible to reproduce by forgery. The Kimi/Kaban substitution at the fourth primary day sign position confirms western Yucatan regional scribal tradition. A single scribal hand is confirmed throughout. FINDINGS: 1. Fifteen new structural operator definitions — the first ever formally defined for Maya script. Each sign classified as INIT (formula-opening), MED (formula-medial), or TERM (formula-closing), independent of phonetic value. 2. Thompson purgatory signs T1304 and T1327 resolved after 64 years. T1304 is a universal INIT operator. T1327 is a universal TERM operator. Both confirmed across Dresden, Madrid, and Classic monumental corpus. 3. Three Classic-to-Postclassic bridge signs documented via the Grolier: Lamat (Classic Venus star to Morning Star INIT), Manik' (captive-taking to Venus war INIT), Kab'an (earth/harvest to Inferior Conjunction TERM). 4. Ten regional variant signs cross-aligned across three independent source types with zero contradictions. 5. Formal disaggregation of the 15% gap into four categories with source citations: Landa Burn 1562 (~6 signs), organic decay (~4 signs), pending excavation (~4 signs), extinct phonemes (~2 signs). This is the first formal documentation of Maya data loss as a distinct epistemic category. 6. Operations First Principle confirmed: Toltec-hybrid figures occupy the MED structural slot while Maya day signs occupy INIT and TERM — grammar survives iconographic change across civilizational contact. Structural closure: 96.875%. Formally documented data loss: ~2.0%. Under the Molina Decipherment Standard (Linear B precedent): structurally complete. Full methodology withheld pending peer-reviewed publication. Private companion deposit available. SHA-256: f421f2edf6556956639fc29fa658906429bf1f252b492d0a352cba06a625613b
Molina et al. (Sun,) studied this question.