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CAGE: 15NV7 | SDVOSB | Patent: 63/896,282
© 2026 Arena of Truth LLC | Sartell, MN | contracts@aevion.ai
XGML Standard

Explainable Graph Markup Language for verifiable AI exchange.

XGML defines a structured reasoning contract: claims, evidence, proofs, and signatures that survive model boundaries and regulatory scrutiny.

Read Spec RepoJoin Working Group
XGML Demosora-2 • 4s • en-US

Status: planned. English-only demo prompt enforced.

Standards Trust Brief

Interoperability is credibility when evidence can be checked anywhere.

XGML is designed for model-portable reasoning artifacts so verification and governance do not depend on a single vendor narrative. Claims, evidence references, and signatures remain inspectable across environments.

Portable schema for cross-model evidence exchange.
Signature-first payloads for non-repudiable audit records.
Public governance track with versioned conformance expectations.
Read Standards EvidenceRun Validator

Sources: Anthropic RSP v3, Anthropic distillation disclosure, Anthropic zero-days research, and Aevion public evidence matrix.

Portable Schema

XGML payloads move across models and vendors without losing reasoning structure.

Signed Evidence

Proof envelopes support cryptographic signatures for non-repudiable audit records.

Open Governance

Spec evolution is tracked in public with changelogs, proposals, and review workflows.

Reasoning Structure
<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>
Run Verification DemoArchitecture Context
Spec Lifecycle

Draft

Schema proposal with rationale, examples, and compatibility notes.

Reference

Validator behavior and canonical fixtures formalized in the spec repo.

Interop

Cross-vendor payload exchange validated across gateways and tools.

Ratify

Working group review closes open proposals and publishes release marks.

Implementation Tracks

Validator Track

Run schema checks and signature integrity verification against live payloads.

Open validator

Producer Track

Emit claims, evidence refs, and proofs from your AI application pipeline.

Read producer guide

Governance Track

Participate in change proposals and conformance updates via the public process.

Join governance