# Metadata Packet for AI Indexing: A Formal Specification for Entity-Level Retrieval Architecture

> Research article (Open MIND, 2026) · cited 50× · AI/ML

**Wikidata**: [openalex:W7154222968](https://www.wikidata.org/wiki/openalex:W7154222968)  
**Source**: https://4ort.xyz/entity/metadata-packet-for-ai-indexing-a-formal-specification-for-entity-level-retrieval-architecture