PP-SPEC-055: Proof of Efficacy Mapping to NIST SP 800-53 Rev. 5 and COSAiS

Status: DRAFT v0.1 Author: Craig Ellrod / Nebulonium, Inc. / HACKERverse® License: Greater Good Commercial License 1.0 (GGL-C-1.0); text CC BY 4.0 under Part S. See LICENSE.md.

Normative specification: PP-SPEC-055-NIST-SP-800-53-COSAiS-Mapping.md

Purpose

This repository defines a Proof Protocol mapping between NIST SP 800-53 Rev. 5 (Release 5.2.0), the NIST SP 800-53 Control Overlays for Securing AI Systems (COSAiS, in development), and Proof Protocol evidence, efficacy, and proof semantics.

The external framework supplies context describing what may be tested or examined. Proof Protocol remains framework-agnostic and independently establishes whether a selected control performed as claimed.

Repository contents

• PP-SPEC-055-NIST-SP-800-53-COSAiS-Mapping.md: normative mapping specification
• README.md: repository overview
• LICENSE: license for original Proof Protocol material
• CONTRIBUTING.md: contribution guidance
• CITATION.cff: citation metadata

Architectural principle

Threat, control, audit, and regulatory frameworks are pluggable inputs to Proof Protocol. Proof Protocol is framework-agnostic.

External frameworks identify what may be tested. Proof Protocol independently establishes whether a control worked and what evidence proves the result.

Ownership and external-framework notice

This Proof Protocol mapping is independently authored. NIST SP 800-53 and COSAiS are published by the National Institute of Standards and Technology (NIST). COSAiS overlays are in development; their status SHOULD be checked at https://csrc.nist.gov/projects/cosais. External names, identifiers, trademarks, standards text, and upstream materials remain subject to their applicable ownership and licensing. Mapping establishes interoperability, not dependency, endorsement, certification, or transfer of ownership. No affiliation, endorsement, certification, or sponsorship by NIST is implied.

Required notice: NIST SP 800-53 Rev. 5, Security and Privacy Controls for Information Systems and Organizations (Release 5.2.0, August 27, 2025), https://doi.org/10.6028/NIST.SP.800-53r5, and NIST SP 800-53 Control Overlays for Securing AI Systems (COSAiS), https://csrc.nist.gov/projects/cosais. Source: National Institute of Standards and Technology. Use of their identifiers does not imply NIST endorsement.