Dataset
KupferDigital_7F21109_ID3243_Pos._a_HV
hardness measurements on a diffusion specimen. This MatPortal catalogue entry is listed under KupferDigital, catalogued under the KupferDigital project. It includes 2 linked resources with formats such as XLSX, including KupferDigital_7F21109_ID3243_Pos._a_HV_metadata.xlsx, KupferDigital_7F21109_ID3243_Pos._a_HV_rawdata.xlsx. Keywords include alloy development, hardness. Review the linked source for license and reuse conditions.
Metadata-only record
This entry is a public catalogue pointer: it links to an external website or repository, but no RDF graph/entities have been published in MatPortal yet. Browse graph-rich public records to explore RDF resources, SPARQL, and GraphRAG features.
Dataset identity
- Stable URI
-
https://datagraph.dev.matportal.org/id/dataset/kupferdigital-7f21109-id3243-pos-a-hvOpen - Portal page
-
/datasets/kupferdigital-7f21109-id3243-pos-a-hvOpen - RDF Turtle
-
https://datagraph.dev.matportal.org/data/dataset/kupferdigital-7f21109-id3243-pos-a-hv.ttlOpen - License
- Reuse license not specified
- Publisher
- fem
- Published by
- admin
- Project
- KupferDigital
- Version
- Not specified
- Identifier
- d2232e99-0558-4ceb-a006-7deae56d3dbf
What is available here?
- A stable MatPortal dataset identifier and machine-readable metadata.
- Public source/documentation links for the external portal or repository.
- No MatPortal-hosted RDF graph, RDF resources, GraphRAG evidence, or SPARQL graph query yet.
Use the browse page sorted by RDF resources to find public datasets with named graphs, entity pages, SPARQL starters, and GraphRAG evidence.
Related ontologies and catalogue context
Files & access
2 file/access itemsKupferDigital_7F21109_ID3243_Pos._a_HV_metadata.xlsx
metadata on the experimental data
KupferDigital_7F21109_ID3243_Pos._a_HV_rawdata.xlsx
measured vickers hardness
File preview
Preview metadata is available, but no preview rows were returned.
Named graphs
Query this dataNo public graph releases are available for this dataset yet.
RDF resources
Entity previews will appear after public graph indexing.
Ask this dataset with GraphRAG
GraphRAG searches MatPortal's public dataset metadata, named graph metadata, indexed RDF resources, and facts. It does not copy or vectorize every external file or raw distribution.
Ask a question above to get a graph-aware answer and a safe SPARQL starting point.
Indexed sources
- Dataset Metadata
- Distribution
- Distribution
Query this dataset
Use the guarded public SPARQL workbench with a dataset graph template. Only read-only SELECT queries with limits are accepted.
SELECT ?s ?p ?o WHERE { ?s ?p ?o } LIMIT 100
Open in SPARQL workbench
Graph-aware Q&A readiness
- Dataset Metadata
- Distribution
- Distribution
Dataset quality and readiness
- Score
- 53%
- Maturity
- draft_metadata
- Publication boundary
- Public output is derived from reviewed public dataset/resource/graph metadata only.
Checks and recommendations
- Core metadata completeness
- Persistent identifier and citation readiness
- License availability
- File, service, or access-resource links
- Ontology and linked-data context
- Unit and quantity-kind validation
- Governance and review state
Dataset FAIR assessment
FAIR assessment is not available yet.
Unit profile
{
"valid": true,
"score": 1.0,
"checked_fields": [],
"issues": [],
"profile": "matportal-materials-qudt-lite-v1"
}
Semantic dataset passport
- Passport ID
- kupferdigital-7f21109-id3243-pos-a-hv
- DCAT
- https://datagraph.dev.matportal.org/id/dataset/kupferdigital-7f21109-id3243-pos-a-hv
- Review status
- published
Semantic mirror manifest
{
"@context": {
"dcterms": "http://purl.org/dc/terms/",
"dcat": "http://www.w3.org/ns/dcat#",
"prov": "http://www.w3.org/ns/prov#",
"matportal": "https://w3id.org/matportal/schema#"
},
"id": "https://datagraph.dev.matportal.org/api/v1/datasets/kupferdigital-7f21109-id3243-pos-a-hv/mirror-package",
"type": "matportal:SemanticMirrorPackage",
"dataset": "https://datagraph.dev.matportal.org/datasets/kupferdigital-7f21109-id3243-pos-a-hv",
"dataset_slug": "kupferdigital-7f21109-id3243-pos-a-hv",
"generated_at": "2026-07-16T23:53:20.601098+00:00",
"raw_data_policy": "linked-only; no raw data copied by this package",
"publication_boundary": "review artefact; downstream data-space publication remains governed",
"contains": [
"dcat-jsonld",
"datacite-style-metadata",
"ro-crate-metadata",
"ckan-package-json",
"edc-asset-json",
"aas-submodel-semantic-ids",
"sssom-mapping-snapshot",
"shacl-shape-scaffold",
"review-record"
],
"counts": {
"resources": 2,
"graphs": 0,
"indexed_entities": 0,
"mappings": 0,
"unit_fields_checked": 0
},
"source_authority": "MatPortal dataset metadata and linked external providers remain authoritative; connector cards preserve source links."
}
Material identity crosswalk
No public material identity crosswalk entries are linked to this dataset yet.
Machine access
Raw public metadata
{
"id": "dataset_add500f734838b88",
"slug": "kupferdigital-7f21109-id3243-pos-a-hv",
"title": "KupferDigital_7F21109_ID3243_Pos._a_HV",
"description": "hardness measurements on a diffusion specimen. This MatPortal catalogue entry is listed under KupferDigital, catalogued under the KupferDigital project. It includes 2 linked resources with formats such as XLSX, including KupferDigital_7F21109_ID3243_Pos._a_HV_metadata.xlsx, KupferDigital_7F21109_ID3243_Pos._a_HV_rawdata.xlsx. Keywords include alloy development, hardness. Review the linked source for license and reuse conditions.",
"license": "",
"creators": [
"F. Bauer"
],
"organization": "KupferDigital",
"project": "KupferDigital",
"published_by": "admin",
"groups": [],
"keywords": [
"alloy development",
"hardness"
],
"tags": [
"alloy development",
"hardness"
],
"visibility": "public",
"status": "published",
"ontology_annotations": [],
"distributions": [
{
"title": "KupferDigital_7F21109_ID3243_Pos._a_HV_metadata.xlsx",
"filename": "kupferdigital_7f21109_id3243_pos._a_hv_metadata.xlsx",
"description": "metadata on the experimental data",
"visibility": "public",
"status": "published",
"media_type": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
"format": "XLSX",
"checksum_sha256": "",
"size_bytes": 9291,
"source_uri": "https://ckan.kupferdigital.org/dataset/d2232e99-0558-4ceb-a006-7deae56d3dbf/resource/99ac257f-9897-4472-9cd1-c3bef16a1b12/download/kupferdigital_7f21109_id3243_pos._a_hv_metadata.xlsx",
"download_url": "https://ckan.kupferdigital.org/dataset/d2232e99-0558-4ceb-a006-7deae56d3dbf/resource/99ac257f-9897-4472-9cd1-c3bef16a1b12/download/kupferdigital_7f21109_id3243_pos._a_hv_metadata.xlsx",
"access_url": "https://ckan.kupferdigital.org/dataset/d2232e99-0558-4ceb-a006-7deae56d3dbf/resource/99ac257f-9897-4472-9cd1-c3bef16a1b12/download/kupferdigital_7f21109_id3243_pos._a_hv_metadata.xlsx",
"uri": "https://datagraph.dev.matportal.org/id/distribution/kupferdigital-7f21109-id3243-pos-a-hv/resource_102b9d91ffd8eaab",
"url_type": "external",
"rdf_format": null,
"ontology_annotations": [],
"data_dictionary": [],
"views": [
{
"id": "",
"title": "Table preview",
"view_type": "table",
"url": "",
"embed_url": "",
"embeddable": false,
"description": "",
"default": true,
"config": {
"mode": "datastore-preview"
}
},
{
"id": "",
"title": "Download",
"view_type": "download",
"url": "",
"embed_url": "",
"embeddable": false,
"description": "",
"default": true,
"config": {}
}
],
"datastore_active": false,
"datastore_enabled": false,
"has_views": true,
"mapping_supported": false,
"query_supported": false,
"transform_provenance": {
"was_derived_from": "https://dataportal.material-digital.de/dataset/kupferdigital_7f21109_id3243_pos-_a_hv",
"harvested_from": "https://dataportal.material-digital.de/",
"source_resource_id": "ab07ea06-31b7-47be-9121-429ee33e5312"
},
"id": "resource_102b9d91ffd8eaab",
"dataset_slug": "kupferdigital-7f21109-id3243-pos-a-hv",
"created_at": "2026-06-14T01:24:58.360041Z",
"updated_at": "2026-06-14T01:24:58.360041Z"
},
{
"title": "KupferDigital_7F21109_ID3243_Pos._a_HV_rawdata.xlsx",
"filename": "kupferdigital_7f21109_id3243_pos._a_hv_rawdata.xlsx",
"description": "measured vickers hardness",
"visibility": "public",
"status": "published",
"media_type": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
"format": "XLSX",
"checksum_sha256": "",
"size_bytes": 19742,
"source_uri": "https://ckan.kupferdigital.org/dataset/d2232e99-0558-4ceb-a006-7deae56d3dbf/resource/e6b17b7a-bcd6-41b5-9ec6-3b9bed91ed35/download/kupferdigital_7f21109_id3243_pos._a_hv_rawdata.xlsx",
"download_url": "https://ckan.kupferdigital.org/dataset/d2232e99-0558-4ceb-a006-7deae56d3dbf/resource/e6b17b7a-bcd6-41b5-9ec6-3b9bed91ed35/download/kupferdigital_7f21109_id3243_pos._a_hv_rawdata.xlsx",
"access_url": "https://ckan.kupferdigital.org/dataset/d2232e99-0558-4ceb-a006-7deae56d3dbf/resource/e6b17b7a-bcd6-41b5-9ec6-3b9bed91ed35/download/kupferdigital_7f21109_id3243_pos._a_hv_rawdata.xlsx",
"uri": "https://datagraph.dev.matportal.org/id/distribution/kupferdigital-7f21109-id3243-pos-a-hv/resource_3f8bcdddc1de0d09",
"url_type": "external",
"rdf_format": null,
"ontology_annotations": [],
"data_dictionary": [],
"views": [
{
"id": "",
"title": "Table preview",
"view_type": "table",
"url": "",
"embed_url": "",
"embeddable": false,
"description": "",
"default": true,
"config": {
"mode": "datastore-preview"
}
},
{
"id": "",
"title": "Download",
"view_type": "download",
"url": "",
"embed_url": "",
"embeddable": false,
"description": "",
"default": true,
"config": {}
}
],
"datastore_active": false,
"datastore_enabled": false,
"has_views": true,
"mapping_supported": false,
"query_supported": false,
"transform_provenance": {
"was_derived_from": "https://dataportal.material-digital.de/dataset/kupferdigital_7f21109_id3243_pos-_a_hv",
"harvested_from": "https://dataportal.material-digital.de/",
"source_resource_id": "01a6ab85-c56d-4f34-b435-0a2bdcbecfc2"
},
"id": "resource_3f8bcdddc1de0d09",
"dataset_slug": "kupferdigital-7f21109-id3243-pos-a-hv",
"created_at": "2026-06-14T01:24:58.449367Z",
"updated_at": "2026-06-14T01:24:58.449367Z"
}
],
"graph_ids": [],
"entity_count": 0,
"follower_count": 0,
"contact_points": [
{
"name": "[{\"email\": \"bauer@fem-online.de\", \"identifier\": \"\", \"name\": \"F. Bauer\", \"uri\": \"\", \"url\": \"\"}]",
"email": "",
"uri": "",
"identifier": "",
"url": ""
}
],
"publisher": "fem",
"homepage": "https://dataportal.material-digital.de/dataset/kupferdigital_7f21109_id3243_pos-_a_hv",
"landing_page": "https://dataportal.material-digital.de/dataset/kupferdigital_7f21109_id3243_pos-_a_hv",
"release_date": "2022-10-14T16:29:09.386687",
"modification_date": "2025-03-24T12:07:10.190804",
"version": "",
"version_notes": "",
"identifier": "d2232e99-0558-4ceb-a006-7deae56d3dbf",
"frequency": "",
"provenance": "Harvested from Platform MaterialDigital CKAN Action API without credentials. ",
"dataset_type": "dataset",
"temporal_coverage": [],
"temporal_resolution": "",
"spatial_coverage": [],
"spatial_resolution_meters": null,
"access_rights": "",
"other_identifiers": [],
"theme": [],
"language": [],
"documentation": [
"https://dataportal.material-digital.de/dataset/kupferdigital_7f21109_id3243_pos-_a_hv"
],
"conforms_to": [],
"is_referenced_by": [],
"applicable_legislation": [],
"has_version": [],
"qualified_relations": [],
"citation": "",
"activity": [
{
"at": "2026-06-14T01:24:58.280402+00:00",
"event": "dataset_created",
"actor": "admin",
"note": "Dataset registered in native DataGraph"
},
{
"at": "2026-06-14T01:24:58.315822+00:00",
"event": "dataset_imported",
"actor": "admin",
"note": "Imported/updated from Platform MaterialDigital CKAN API."
},
{
"at": "2026-06-14T01:24:58.360041+00:00",
"event": "resource_added",
"actor": "admin",
"resource_id": "resource_102b9d91ffd8eaab",
"note": "KupferDigital_7F21109_ID3243_Pos._a_HV_metadata.xlsx"
},
{
"at": "2026-06-14T01:24:58.449367+00:00",
"event": "resource_added",
"actor": "admin",
"resource_id": "resource_3f8bcdddc1de0d09",
"note": "KupferDigital_7F21109_ID3243_Pos._a_HV_rawdata.xlsx"
}
],
"metadata": {
"publisher": "",
"published_by": "admin",
"contact_points": [],
"homepage": "",
"landing_page": "",
"release_date": "",
"modification_date": "",
"version": "",
"version_notes": "",
"identifier": "",
"frequency": "",
"provenance": "",
"type": "",
"temporal_coverage": "",
"temporal_resolution": "",
"spatial_coverage": "",
"spatial_resolution_meters": "",
"access_rights": "",
"language": [],
"documentation": [],
"conforms_to": [],
"is_referenced_by": [],
"applicable_legislation": [],
"has_version": [],
"qualified_relation": [],
"qualified_attribution": [],
"extras": {}
},
"created_at": "2026-06-14T01:24:58.280402Z",
"updated_at": "2026-06-14T01:24:58.449367Z"
}