NAPH Validation Report

Generated 2026-05-01 14:27 UTC · National Aerial Photography Heritage Ontology · v0.1

Summary

SHACL Validation

Each photograph validated against tier-specific shapes (Baseline / Enhanced / Aspirational), DigitalSurrogate quality requirements, and Place authority shape.

All records conform to declared tier compliance.

Competency Question Verification

Each question is a research workflow that the standard enables. Results below are run live against the sample dataset.

CQ1: WWII temporal range — photos captured 1939-09 to 1945-09

5 results

photolabeldate
<https://w3id.org/naph/example/photo-008>"Peenemünde rocket research facility frame 0413""1943-06-23"^^<http://www.w3.org/2001/XMLSchema#date>
<https://w3id.org/naph/example/photo-004>"Hamburg post-firestorm frame 1287""1943-07-30"^^<http://www.w3.org/2001/XMLSchema#date>
<https://w3id.org/naph/example/photo-001>"Berlin reconnaissance frame 4023""1944-03-28"^^<http://www.w3.org/2001/XMLSchema#date>
<https://w3id.org/naph/example/photo-003>"Saipan coastline frame 0218""1944-08-12"^^<http://www.w3.org/2001/XMLSchema#date>
<https://w3id.org/naph/example/photo-010>"Hiroshima post-detonation assessment frame 0034""1945-08-11"^^<http://www.w3.org/2001/XMLSchema#date>

CQ3: Open rights — photos available for open-access publication

7 results

photolabelrightsLabel
<https://w3id.org/naph/example/photo-010>"Hiroshima post-detonation assessment frame 0034""No Copyright — United States"
<https://w3id.org/naph/example/photo-009>"Edinburgh Castle and Royal Mile frame 2287""No Copyright — Other Known Legal Restrictions"
<https://w3id.org/naph/example/photo-008>"Peenemünde rocket research facility frame 0413""No Copyright — Other Known Legal Restrictions"
<https://w3id.org/naph/example/photo-006>"Pyongyang industrial district frame 0892""No Copyright — United States"
<https://w3id.org/naph/example/photo-004>"Hamburg post-firestorm frame 1287""No Copyright — Other Known Legal Restrictions"
<https://w3id.org/naph/example/photo-003>"Saipan coastline frame 0218""No Copyright — United States"
<https://w3id.org/naph/example/photo-001>"Berlin reconnaissance frame 4023""No Copyright — Other Known Legal Restrictions"

CQ4: Wikidata event linkage — photos linked to historic events

2 results

photolabelwikidata
<https://w3id.org/naph/example/photo-010>"Hiroshima post-detonation assessment frame 0034"<https://www.wikidata.org/wiki/Q703203>
<https://w3id.org/naph/example/photo-008>"Peenemünde rocket research facility frame 0413"<https://www.wikidata.org/wiki/Q174640>

CQ5: NARA partnership audit — provenance via US National Archives

2 results

photolabelchainLabel
<https://w3id.org/naph/example/photo-010>"Hiroshima post-detonation assessment frame 0034""USAAF 1945 → US Strategic Bombing Survey → NARA → NCAP digitisation partnership 2016"
<https://w3id.org/naph/example/photo-006>"Pyongyang industrial district frame 0892""USAF 1951 → NARA accession → NCAP digitisation partnership 2016"

CQ6: Tier compliance distribution

3 results

tierLabelcount
"Enhanced""4"^^<http://www.w3.org/2001/XMLSchema#integer>
"Baseline""3"^^<http://www.w3.org/2001/XMLSchema#integer>
"Aspirational""3"^^<http://www.w3.org/2001/XMLSchema#integer>

CQ8: Capture-context filter — Spitfire above 6000m

2 results

photolabelaltitude
<https://w3id.org/naph/example/photo-009>"Edinburgh Castle and Royal Mile frame 2287""6096"^^<http://www.w3.org/2001/XMLSchema#decimal>
<https://w3id.org/naph/example/photo-004>"Hamburg post-firestorm frame 1287""9144"^^<http://www.w3.org/2001/XMLSchema#decimal>

CQ7: High-research-value subset — post-1944 + Place + open rights

2 results

photolabel
<https://w3id.org/naph/example/photo-010>"Hiroshima post-detonation assessment frame 0034"
<https://w3id.org/naph/example/photo-009>"Edinburgh Castle and Royal Mile frame 2287"