What question did this study set out to answer?

This document aims to formalize the governance substrate of APR-Lite by freezing its identity and publishing the associated version manifest.

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April 7, 2026Open Access

APR-Lite Phase 38: Boundary Freeze & Substrate Identity

Key Points

This document aims to formalize the governance substrate of APR-Lite by freezing its identity and publishing the associated version manifest.
Introduction of the Substrate Version Manifest (SVM) endpoint for live attestation
Publication of the static SVM JSON artifact as a citable reference
Use of SHA-256 hash for integrity verification of the frozen definition
Governance substrate identity is declared as permanently frozen
The SVM serves as a regulatory-grade definition, ensuring stability in governance operations
The change marks APR-Lite's transition to a reliable governance framework

Abstract

This document is the canonical technical record for APR-Lite Phase 38, which declares the governance substrate frozen and publishes the Substrate Version Manifest (SVM). Phase 38 introduces two artifacts: (1) the SVM endpoint (GET /agentic/v1/substrate/manifest), a live authenticated attestation that returns the frozen identity with integrity checks; and (2) the SVM JSON artifact (DOI 10.5281/zenodo.19431206), the static, citable, regulator-grade frozen definition. The manifest hash — SHA-256 of the canonical JSON representation of the frozen surface definition — is 64edea792d4932022f912ac9be7163d0f1765c872c57f9c4728be6e0a3d007ef. Frozen means the governance surface has a declared identity that will never shift under operators, auditors, or regulators. This is the constitutional moment: APR-Lite becomes a stable governance primitive.

APR-Lite Phase 38: Boundary Freeze & Substrate Identity

Key Points

Abstract

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