# DIO/ODI Reference Model > Canonical machine-readable reference layer for Digital Identity Optimization (DIO) and Ontology of Digital Identity (ODI), maintained by Daniel Beránek. ## Site entry point - Top-level Reference Model overview: https://vocab.danielberanek.cz/ - Canonical Reference Vocabulary landing page: https://vocab.danielberanek.cz/dio-odi/ - Application Mappings index: https://vocab.danielberanek.cz/mappings/ - Corpus Metadata Registry frontend: https://vocab.danielberanek.cz/metadata/ - Semantic Change Feed frontend: https://vocab.danielberanek.cz/semantic-change-feed/ - Semantic Change Feed events JSON: https://vocab.danielberanek.cz/semantic-change-feed/events.json - Semantic Change Feed JSON Schema: https://vocab.danielberanek.cz/semantic-change-feed/schema.json - Corpus Metadata Registry technical guide: https://vocab.danielberanek.cz/metadata/README.md - Wider DIO/ODI Hub and publication corpus: https://danielberanek.cz/manifest-dio/ ## Versions - Current archived Reference Model release: 0.7.0 — https://doi.org/10.5281/zenodo.24020300 - Previous archived Reference Model release: 0.6.0 — https://doi.org/10.5281/zenodo.23966487 - Live Reference Vocabulary: 0.2.1 — metadata-only update; concept model unchanged from v0.2.0 - Vocabulary included in archived v0.7.0: 0.2.1 - Vocabulary included in archived v0.6.0: 0.2.0 - Earlier archived release: v0.5.0 — https://doi.org/10.5281/zenodo.23643845 - Earlier archived release: v0.4.0 — https://doi.org/10.5281/zenodo.23632619 - Earlier archived release: v0.3.2 — https://doi.org/10.5281/zenodo.23300703 - Earlier archived release: v0.3.1 — https://doi.org/10.5281/zenodo.23290683 - Earlier archived release: v0.3.0 — https://doi.org/10.5281/zenodo.23289615 - Earlier archived release: v0.2.0 — https://doi.org/10.5281/zenodo.23282752 - Earlier archived release: v0.1.0 — https://doi.org/10.5281/zenodo.23272898 ## Referenced research works - The Crisis of Entity Resolution in Heterogeneous AI Environments: Data, Financial, and Semantic Dimensions — current version 1.1.0: https://doi.org/10.5281/zenodo.22416026 - Zenodo record: https://zenodo.org/records/22416026 - Version 1.1.0 adds four standalone conceptual visualizations: Identity Collapse, Semantic Fragmentation, Temporal Discontinuity, and Semantic Vulnerability. - The primary PDF remains unchanged; the four visualizations are supplementary explanatory models. - The work is registered in `metadata/works.json`, cited in `metadata/references.json`, and linked from the Reference Model in `metadata/relations.json`. ## Canonical vocabulary - Namespace document: https://vocab.danielberanek.cz/dio-odi/ - DIO/ODI Reference Model — Zenodo Concept DOI (all model versions): https://doi.org/10.5281/zenodo.23272897 - Canonical namespace: https://vocab.danielberanek.cz/dio-odi/# - Turtle / SKOS: https://vocab.danielberanek.cz/vocabulary/dio-odi-skos.ttl - JSON-LD: https://vocab.danielberanek.cz/vocabulary/dio-odi.jsonld - DCAT 3 dataset description: https://vocab.danielberanek.cz/vocabulary/dio-odi-dcat.ttl - Schema.org Dataset structured data: embedded in the vocabulary landing page for Google Dataset Search - Human-readable terminology: https://vocab.danielberanek.cz/docs/terminology.md - Concept-to-source map: https://vocab.danielberanek.cz/docs/source-map.md - Concept map: https://vocab.danielberanek.cz/docs/concept-map.svg ## Derived application mappings Derived mappings are not part of the canonical DIO/ODI Reference Vocabulary. They apply vocabulary concepts to external technical or analytical domains without modifying canonical definitions or relations. - Application Mappings index: https://vocab.danielberanek.cz/mappings/ - Application Mapping: DIO Reconstruction Failure Modes × RAG Pipeline: https://vocab.danielberanek.cz/mappings/rag-pipeline/ - Source Markdown: https://vocab.danielberanek.cz/mappings/rag-pipeline-mapping.md - JSON-LD: https://vocab.danielberanek.cz/mappings/rag-pipeline-mapping.jsonld - JSON-LD introduced in: Reference Model v0.3.1 - Turtle RDF: https://vocab.danielberanek.cz/mappings/rag-pipeline-mapping.ttl - Turtle RDF introduced in: Reference Model v0.3.1 - Introduced in: Reference Model v0.2.0 - Base mapping introduced and first archived in: Reference Model v0.2.0 - Iterative/hypothesis-conditioned evidence-acquisition extension: first included in archived Reference Model v0.4.0 — https://doi.org/10.5281/zenodo.23632619; carried forward in archived v0.5.0 — https://doi.org/10.5281/zenodo.23643845, v0.6.0 — https://doi.org/10.5281/zenodo.23966487, and current archived v0.7.0 — https://doi.org/10.5281/zenodo.24020300 - Development context: Constraining the Commit Boundary, published 2026-10-22: https://zenodo.org/records/23580733 - Application Mapping: HEM Heterogeneity Taxonomy × DIO Reconstruction Consequences: https://vocab.danielberanek.cz/mappings/hem-dio/ - Source Markdown: https://vocab.danielberanek.cz/mappings/hem-dio-mapping.md - JSON-LD: https://vocab.danielberanek.cz/mappings/hem-dio-mapping.jsonld - Conceptual bridge SVG: https://vocab.danielberanek.cz/mappings/hem-dio/bridge.svg - External HEM source DOI: https://doi.org/10.1016/j.datak.2026.102575 - Introduced in: Reference Model v0.3.0 - Included in: Reference Model v0.4.0 — https://doi.org/10.5281/zenodo.23632619; carried forward in archived v0.5.0 — https://doi.org/10.5281/zenodo.23643845, v0.6.0 — https://doi.org/10.5281/zenodo.23966487, and current archived v0.7.0 — https://doi.org/10.5281/zenodo.24020300 - Turtle RDF: https://vocab.danielberanek.cz/mappings/hem-dio-mapping.ttl - Turtle RDF introduced in: Reference Model v0.3.1 - Application Mapping: DIO/ODI Commit-Boundary Contract × Policy-as-Code Authorization: https://vocab.danielberanek.cz/mappings/commit-boundary-policy/ - Source Markdown: https://vocab.danielberanek.cz/mappings/commit-boundary-policy-mapping.md - JSON-LD: https://vocab.danielberanek.cz/mappings/commit-boundary-policy-mapping.jsonld - Turtle RDF: https://vocab.danielberanek.cz/mappings/commit-boundary-policy-mapping.ttl - External technical references: OPA and Cedar - Added to live source tree: 2026-10-25 - Archival status: first included in archived Reference Model v0.4.0 — https://doi.org/10.5281/zenodo.23632619; carried forward in archived v0.5.0 — https://doi.org/10.5281/zenodo.23643845, v0.6.0 — https://doi.org/10.5281/zenodo.23966487, and current archived v0.7.0 — https://doi.org/10.5281/zenodo.24020300 - Application Mapping: DIO/ODI-Informed Agentic ER Commit-Boundary Architecture (live version 0.3.1): https://vocab.danielberanek.cz/mappings/agentic-er-architecture/ - Source Markdown: https://vocab.danielberanek.cz/mappings/agentic-er-commit-boundary-architecture-mapping.md - JSON-LD: https://vocab.danielberanek.cz/mappings/agentic-er-commit-boundary-architecture-mapping.jsonld - Turtle RDF: https://vocab.danielberanek.cz/mappings/agentic-er-commit-boundary-architecture-mapping.ttl - Architecture SVG: https://vocab.danielberanek.cz/mappings/agentic-er-architecture/architecture.svg - Live version 0.3.1 is a provenance-only synchronization to public arXiv:2610.37407v2 (2026-11-05); its 120 local architecture concepts and 206 qualified relation assertions are unchanged - Version 0.3.0 remains the mapping version archived in Reference Model v0.6.0 - Version 0.3.1 is included in archived Reference Model v0.7.0; provenance-only synchronization to arXiv v2 — https://doi.org/10.5281/zenodo.24020300 - Section-level source: production manuscript v55 (2026-11-04), retained as the provenance source for section anchors in public arXiv v2 ## Semantic Change Feed - Human-readable frontend: https://vocab.danielberanek.cz/semantic-change-feed/ - Canonical append-only event feed: https://vocab.danielberanek.cz/semantic-change-feed/events.json - JSON Schema: https://vocab.danielberanek.cz/semantic-change-feed/schema.json - Technical specification: https://vocab.danielberanek.cz/semantic-change-feed/README.md - Purpose: source-backed history of semantic, structural, provenance, mapping, and artifact-state changes; not a Git commit log - Boundary: does not replace the Reference Vocabulary, Application Mappings, Corpus Metadata Registry, or immutable Reference Model releases - Feed version: 0.1.0; the first structured release of the curated event history, with explicit date basis, preserved invariants, impact, provenance, and lineage - Current coverage: 44 events; full dated Hub Changelog (25 March–25 October 2026) plus subsequent publication, research-portfolio, and release milestones through 7 November 2026 ## DIO to DIO research portfolio - Public portfolio: https://dan-beranek.github.io/dio-to-dio/ - Repository: https://github.com/dan-beranek/dio-to-dio - Eleven author-led, model-specific analyses of DIO/ODI reconstruction, with different observation snapshots and graph approaches; the reports are not harmonized, ranked, or synthesized. - The portfolio is a discovery and interpretive corpus, not an authoritative chronology. Verify historical claims against primary publications, release records, registries, and archives. ## Corpus metadata registry - Registry guide: https://vocab.danielberanek.cz/metadata/README.md - Works registry: https://vocab.danielberanek.cz/metadata/works.json - Relation graph: https://vocab.danielberanek.cz/metadata/relations.json - Canonical references: https://vocab.danielberanek.cz/metadata/references.json - Distribution representations: https://vocab.danielberanek.cz/metadata/distributions.json - Canonical keyword registry: https://vocab.danielberanek.cz/metadata/keywords.json - Keyword registry version: 2.4.0 - Grammar version: 2.0.0 - Status: canonical-approved - Work-specific profile: commit-boundary-paper (34 terms; baseline aligned to Zenodo v1 metadata) - Order: C0 Identity → C1 Environments → C2 Work positioning → C3 Mechanics → C4 Semantic Connectome → C5 Failures/robustness → C6 Machine-readable representation - Zenodo projection for future GitHub releases: repository root `/.zenodo.json` This registry is an operational metadata layer and does not modify the canonical DIO/ODI Reference Vocabulary. ## Releases - v0.7.0: https://doi.org/10.5281/zenodo.24020300 - v0.6.0: https://doi.org/10.5281/zenodo.23966487 - v0.5.0: https://doi.org/10.5281/zenodo.23643845 - v0.4.0: https://doi.org/10.5281/zenodo.23632619 - v0.3.2: https://doi.org/10.5281/zenodo.23300703 - v0.3.1: https://doi.org/10.5281/zenodo.23290683 - v0.3.0: https://doi.org/10.5281/zenodo.23289615 - v0.2.0: https://doi.org/10.5281/zenodo.23282752 - v0.1.0: https://doi.org/10.5281/zenodo.23272898 ## Source repository - GitHub: https://github.com/dan-beranek/dio-odi-reference-model ## License CC BY 4.0: https://creativecommons.org/licenses/by/4.0/