Balisage Paper: DGML: Semantic XML for the Age of Document AI

Cross-document tag consistency, spatial grounding, fragment-level attestation, and browser-native readability for business documents

Balisage: The Markup Conference 2026
August 3 - 7, 2026

The materials listed below were provided by the speaker as supplements to a presentation at Balisage. These materials may include the slides or visuals used in the presentation; supplementary material, such as code samples or a demonstration application; and/or the paper accompanying the presentation (if it has not been provided in XML). These materials have been zipped for easy download and are identified by a brief description of the contents. The materials themselves are untouched, that is, they have not been tested or edited by Balisage: The Markup Conference or by Mulberry Technologies, Inc. As such, they are included on this website AS IS, i.e., as provided by the speaker, with no warranties, express or otherwise, made by Balisage or Mulberry.

Slides and Materials

×

Bray, Tim, Jean Paoli, C. M. Sperberg-McQueen, Eve Maler, François Yergeau, eds. Extensible Markup Language (XML) 1.0. W3C Recommendation, 10 February 1998. https://www.w3.org/TR/1998/REC-xml-19980210.

×

Clark, James, Makoto Murata, eds. RELAX NG Compact Syntax. OASIS Committee Specification, 3 December 2002. https://www.oasis-open.org/committees/relax-ng/compact-20021121.html.

×

ECMA International. Open Packaging Conventions. ECMA-376, Part 2: Open Packaging Conventions (OPC). https://ecma-international.org/publications-and-standards/standards/ecma-376/.

×

Sporny, Manu, Dave Longley, Gregg Kellogg, Markus Lanthaler, Pierre-Antoine Champin, Niklas Lindström, eds. JSON-LD 1.1. W3C Recommendation, 16 July 2020. https://www.w3.org/TR/json-ld11/.

×

Laurie, Ben, Adam Langley, Emilia Kasper. Certificate Transparency. RFC 6962, Internet Engineering Task Force, June 2013. https://www.rfc-editor.org/rfc/rfc6962.

×

Wooldridge, Titus, et al. xast — XML Abstract Syntax Tree. The unified collective. https://github.com/syntax-tree/xast.

×

DGML Format Specification, Version 0.7. Docugami Inc. and Inveniam, 2026. https://github.com/dgml-io/dgml-spec.

Author's keywords for this paper:
semantic XML; document AI; RELAX NG; namespaces; JSON-LD; Open Packaging Conventions; Merkle trees; blockchain attestation; large language models