AfterMath v0.3.0 can generate an open source map for --target mathtype-compatible.
The source map is stored in:
word/customXml/aftermath_equations.xml
This part records the source formula behind generated OMML equations. It is not a MathType object and does not contain proprietary binary data.
Each equation record contains:
equation_idsource_latexgenerated_omml_hashparagraph_indexdelimiter_typecreated_by_after_math_versiontarget_type
Extract machine-readable source:
aftermath extract-source input.docx --out equations.jsonExport Markdown formula blocks:
aftermath roundtrip input.docx --out recovered_latex.mdThe source map exists to make generated equations auditable and recoverable. It does not make previews editable and does not imply MathType private-format compatibility.