Technical Specification: Process Instance Trust Framework (MPAI‑PTF) V1.0 – in the following also called MPAI‑PTF or simply PTF – provides a standard framework enabling Process Instances to establish, evaluate, and maintain trust in distributed, zero‑trust environments. In this MPAI-PTF V1.0, Process Instance indicates either an AI Module (AIM) as specified by Technical Specification: AI Framework V3.0 or a Process as specified by Technical Specification: MPAI Metaverse Model (MPAI-MMM) – Technologies (MMM-TEC) V2.2.
MPAI-PTF V1.0 specifies how Process Instances represent their identity, present verifiable credentials, supply attestation evidence, and evaluate trust policies to support secure and interoperable interactions. PTF enables both standardised and proprietary Processes to participate in trusted ecosystems, provided they expose the data structures and protocol elements specified by MPAI‑PTF.
A Process Instance operating under PTF may perform standardised functions defined by MPAI, or proprietary functions defined by implementers, as long as it conforms to the identity, credential, evidence, and policy requirements of this Technical Specification. Developers can compete in providing PTF‑conforming components – such as credential issuers, evidence providers, and policy evaluators – that implement standard functions and interfaces while offering improved performance or enhanced security. Process Instances may execute conventional data processing or Artificial Intelligence algorithms and may be implemented in hardware, software, or hybrid configurations.
The chapters and sections of this Technical Specification are Normative unless they are labelled as Informative. Terms beginning with a capital letter are defined in Table 1 if specific to this MPAI-PTF Technical Specification. All MPAI-defined Terms are accessible online.
