Dataset

Copper Key Raw Files

The extracted copper key, those files are the base for the Copper-Key Knowledge graph

Metals & Alloys

Project: KupferDigital

Published by admin

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.

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9

Files & access

50%

Quality

Dataset identity

Stable URI: https://data.stage.matportal.org/id/dataset/copper-key-raw-files Open
Portal page: /datasets/copper-key-raw-files Open
RDF Turtle: https://data.stage.matportal.org/data/dataset/copper-key-raw-files.ttl Open
License: Reuse license not specified
Publisher: DKI
Published by: admin
Project: KupferDigital
Version: Not specified
Identifier: a02cfe1d-f63f-4a9c-84bd-9fe68f8a26c2

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

Metals & Alloys

Files & access

9 file/access items

material-raws.csv

Public file, distribution, or access URL

Open file/access URL

datasheets.csv

Public file, distribution, or access URL

Open file/access URL

material-forms.csv

Public file, distribution, or access URL

Open file/access URL

chemical-compositions.csv

Public file, distribution, or access URL

Open file/access URL

norms.csv

Public file, distribution, or access URL

Open file/access URL

materials.csv

Public file, distribution, or access URL

Open file/access URL

countries.csv

Public file, distribution, or access URL

Open file/access URL

chemical-compositions-processed.csv

Public file, distribution, or access URL

Open file/access URL

materials-cleaned.csv

Public file, distribution, or access URL

Open file/access URL

File preview

Preview metadata is available, but no preview rows were returned.

Named graphs

Query this data

No public graph releases are available for this dataset yet.

RDF resources

Entity previews will appear after public graph indexing.

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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
Distribution
Distribution
Distribution
Distribution
Distribution
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
Distribution
Distribution
Distribution
Distribution
Distribution

Dataset quality and readiness

Score: 50%
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 citability
License availability
File, service, or access links
Ontology and linked-data context
Unit and quantity-kind validation
Governance and review status

Dataset FAIR assessment

Overall FAIR score

51%

Assessment coverage

87% (Partial)

Principle scores

F: 69%
A: 100%
I: 17%
R: 35%

Profile / version

matportal-dataset-fair-v1 (v1.0.0)

Source revision

1784684835490005234-132416932

Source updated at

2026-06-14T01:25:40.079609Z

FAIR criterion details

FAIL [F1] Unique and Persistent Identifier

Reason: No identifier or DOI metadata is present.

Missing/needed:

Translation missing: en.dataset_fair_detail.criteria.F1.fail.missing

Score: 0%

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0 (fields: identifier, other_identifiers)

PARTIAL [F2] Rich Descriptive Metadata

Reason: Core descriptive metadata is partially populated (75%).

Evidence:

Translation missing: en.dataset_fair_detail.criteria.F2.partial.evidence
Description field is populated
Publisher or Organization is populated

Missing/needed:

Translation missing: en.dataset_fair_detail.criteria.F2.partial.missing

Score: 75%

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0 (fields: title, description, creators, publisher, organization)

PASS [F3] Metadata Identifier Linkage

Reason: Metadata contains the identifier of the described dataset distributions.

Evidence:

Translation missing: en.dataset_fair_detail.criteria.F3.pass.evidence

Score: 100%

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0 (fields: identifier, distributions)

PASS [F4] Searchable Catalogue Indexing

Reason: Dataset is registered in the public searchable catalogue.

Evidence:

Translation missing: en.dataset_fair_detail.criteria.F4.pass.evidence

Score: 100%

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0 (fields: visibility, status)

PASS [A1] Retrievability Protocol

Reason: Distributions are defined for standard protocol retrievability.

Evidence:

Translation missing: en.dataset_fair_detail.criteria.A1.pass.evidence

Score: 100%

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0 (fields: distributions)

PASS [A1.1] Open Communication Protocol Scheme

Reason: All distribution access paths conform to standard open protocol schemes.

Evidence:

Translation missing: en.dataset_fair_detail.criteria.A1_1.pass.evidence

Score: 100%

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0 (fields: distributions)

UNAVAILABLE [A1.2] Authorization Protocol Metadata

Reason: Access authorization metadata is not specified or unavailable.

Evidence:

Translation missing: en.dataset_fair_detail.criteria.A1_2.unavailable.evidence

Missing/needed:

Translation missing: en.dataset_fair_detail.criteria.A1_2.unavailable.missing

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0 (fields: access_rights, distributions)

UNAVAILABLE [A2] Metadata Persistence Tombstone Policy

Reason: Metadata retention policy is currently unavailable.

Evidence:

Translation missing: en.dataset_fair_detail.criteria.A2.unavailable.evidence

Missing/needed:

Translation missing: en.dataset_fair_detail.criteria.A2.unavailable.missing

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0

PARTIAL [I1] Formal Knowledge Language representation

Reason: Dataset is metadata-only with standard machine-readable metadata representations.

Evidence:

Translation missing: en.dataset_fair_detail.criteria.I1.partial.evidence

Missing/needed:

Translation missing: en.dataset_fair_detail.criteria.I1.partial.missing

Score: 50%

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0 (fields: graph_ids, distributions)

FAIL [I2] FAIR Vocabulary References

Reason: No ontology annotations or standards conforms_to references are present.

Missing/needed:

Translation missing: en.dataset_fair_detail.criteria.I2.fail.missing
conforms_to standards references

Score: 0%

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0 (fields: ontology_annotations, conforms_to)

FAIL [I3] Qualified References and Relations

Reason: No qualified relations or external citations are defined.

Missing/needed:

Translation missing: en.dataset_fair_detail.criteria.I3.fail.missing
other_identifiers / is_referenced_by

Score: 0%

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0 (fields: qualified_relations, other_identifiers, is_referenced_by)

PARTIAL [R1] Descriptive Attributes Plurality

Reason: Plurality of attributes is partially sufficient.

Evidence:

Translation missing: en.dataset_fair_detail.criteria.R1.partial.evidence

Missing/needed:

Translation missing: en.dataset_fair_detail.criteria.R1.partial.missing
keywords / tags

Score: 40%

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0 (fields: title, description, creators, keywords, tags)

FAIL [R1.1] Clear Usage License

Reason: Dataset lacks a valid usage license.

Missing/needed:

Translation missing: en.dataset_fair_detail.criteria.R1_1.fail.missing

Score: 0%

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0 (fields: license)

PASS [R1.2] Detailed Provenance Metadata

Reason: Provenance metadata is fully specified.

Evidence:

Translation missing: en.dataset_fair_detail.criteria.R1_2.pass.evidence
Distribution transform provenance is populated

Score: 100%

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0 (fields: provenance, distributions)

FAIL [R1.3] Domain Community Standards Conformance

Reason: No standard conformances or term URIs are specified.

Missing/needed:

Translation missing: en.dataset_fair_detail.criteria.R1_3.fail.missing
Data dictionary ontology term / unit URIs

Score: 0%

Provenance: Profile: matportal-dataset-fair-criterion-v1, v1.0.0 (fields: conforms_to, distributions, ontology_annotations)

Unit profile

{
  "valid": true,
  "score": 1.0,
  "checked_fields": [],
  "issues": [],
  "profile": "matportal-materials-qudt-lite-v1"
}

Semantic dataset passport

Passport ID: copper-key-raw-files
DCAT: https://datagraph.stage.matportal.org/id/dataset/copper-key-raw-files
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.stage.matportal.org/api/v1/datasets/copper-key-raw-files/mirror-package",
  "type": "matportal:SemanticMirrorPackage",
  "dataset": "https://datagraph.stage.matportal.org/datasets/copper-key-raw-files",
  "dataset_slug": "copper-key-raw-files",
  "generated_at": "2026-08-11T17:28:19.908575+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": 9,
    "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

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  "slug": "copper-key-raw-files",
  "title": "Copper Key Raw Files",
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  "creators": [],
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  "project": "KupferDigital",
  "slice": "materialdigital",
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      "url_type": "external",
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