Portable Schema
XGML payloads move across models and vendors without losing reasoning structure.
XGML defines a structured reasoning contract: claims, evidence, proofs, and signatures that survive model boundaries and regulatory scrutiny.

XGML payloads move across models and vendors without losing reasoning structure.
Proof envelopes support cryptographic signatures for non-repudiable audit records.
Spec evolution is tracked in public with changelogs, proposals, and review workflows.
<xgml version="2.1">
<claim id="c-1042">Veteran is eligible for VR&E intake.</claim>
<evidence ref="m28c.section.iv" confidence="0.97" />
<proof hash="sha256:..." signature="ed25519:..." />
</xgml>