The 'ztdnaid' URI Scheme for Zero-Trust Digital DNA Identifiers (ZTDNAID)

This document defines the 'ztdnaid' Uniform Resource Identifier(URI) scheme, used to represent globally unique, cryptographically verifiable Digital DNA Identifiers (ZTDNAIDs) within Zero Trust architecture implementations. A ZTDNAID binds an entitys immutable, unique Digital DNA Record "DDR" to a resolvable identifier suitable for authentication, authorization, attestation, and trust-registry lookup. The scheme is designed for use with trust registries, such as SAG-CTR and supports deterministic resolution, offline verification, and secure dereferencing.