Dataset

Cross Project Use Case

This dataset documents the conversion of polymer material data from the **Catena-X dataspace** into a **[PMDCo](https://github.com/materialdigital/core-ontology)**-conformant knowledge graph. The source data is a PA6GF30 (30% glass-filled polyamide 6) material property dataset conforming to the [SAMM `MaterialData` aspect model](https://dataportal.material-digital.de/dataset/source record/resource/source record/download/materialdataam3010.ttl) as used in the Catena-X dataspace standard. ## Conversion Pipeline 1. [Instance data](https://dataportal.material-digital.de/dataset/source record/resource/source record/download/material_data_test_pa6gf30.json) is retrieved from a Catena-X dataspace via an Eclipse Dataspace Connector (EDC) 2. The JSON is converted to RDF using the RDFConverter tool with a SAMM-specific YARRRML mapping, producing the [SAMM semantic document](PLACEHOLDER_DATASET1_JOINED_TTL) 3. A [SPARQL INSERT query](https://dataportal.material-digital.de/dataset/source record/resource/source record/download/pmdco-mapping-insert.sparql) transforms the SAMM representation into PMDCo-conformant triples, mapping SAMM units to QUDT equivalents and material properties to PMDCo quality classes 4. The [output graph](PLACEHOLDER_DATASET1_PMDCO_TTL) is a standalone PMDCo knowledge graph of the PA6GF30 material The [SAMM aspect model schema](https://dataportal.material-digital.de/dataset/source record/resource/source record/download/materialdataam3010.ttl) and the [mapping diagram](https://dataportal.material-digital.de/dataset/source record/resource/source record/download/samm-pmdco.png) illustrate the conceptual mapping between the two representations. The [Jupyter notebook](https://dataportal.material-digital.de/dataset/source record/resource/source record/download/cross_project_usecase.ipynb) demonstrates the full pipeline end-to-end. ## Part of Cross-Dataspace Demonstration This dataset is part of a three-dataset series: - **This dataset** — Catena-X SAMM → PMDCo conversion - [steel-inspection-document-mapro](https://dataportal.material-digital.de/dataset/steel-inspection-document-mapro) — Manufacturing-X AAS → PMDCo conversion - [pmd-x-cross-dataspace-demo](https://dataportal.material-digital.de/dataset/pmd-x-cross-dataspace-demo) — joint assembly graph and cross-dataspace SPARQL queries An example query on the SAMM graph can be found here: [SAMM-Query](https://dataportal.material-digital.de/sparklis/?title=cross-project-use-case&endpoint=https%3A%2F%2Fdataportal.material-digital.de%2Fdataset%2Ff2bca6a2-04df-47cb-9439-589e46ba60e2%2Ffuseki%2F%24%2Fsparql&sparklis-query=%5BVId%5DReturn%28Det%28An%288%2CModif%28Select%2CUnordered%29%2CClass%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23MaterialData%22%29%29%2CSome%28And%28Rel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23materialInformation%22%2CFwd%2CDet%28An%2848%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28And%28Rel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23materialIdentifier%22%2CFwd%2CDet%28An%28122%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23materialName%22%2CFwd%2CDet%28An%28121%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23mechanicalProperty%22%2CFwd%2CDet%28An%2847%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28And%28Rel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23flexuralModulus%22%2CFwd%2CDet%28An%28163%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23flexuralStrength%22%2CFwd%2CDet%28An%28162%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23impactStrength%22%2CFwd%2CDet%28An%28161%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23strainAtBreak%22%2CFwd%2CDet%28An%28160%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23stressAtBreak%22%2CFwd%2CDet%28An%28159%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23youngsModulus%22%2CFwd%2CDet%28An%28158%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23physicalProperty%22%2CFwd%2CDet%28An%2846%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28Rel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23density%22%2CFwd%2CDet%28An%28199%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23thermophysicalProperty%22%2CFwd%2CDet%28An%2845%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28And%28Rel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23glassTransitionTemperature%22%2CFwd%2CDet%28An%28240%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23humidity%22%2CFwd%2CDet%28An%28239%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23linearThermalExpansionCoefficient%22%2CFwd%2CDet%28An%28238%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28And%28Rel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23linearThermalExpansionCoefficientParallel%22%2CFwd%2CDet%28An%28277%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23linearThermalExpansionCoefficientTransverse%22%2CFwd%2CDet%28An%28276%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23meltingTemperature%22%2CFwd%2CDet%28An%28237%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23pvt%22%2CFwd%2CDet%28An%28236%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28And%28Rel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23pressure%22%2CFwd%2CDet%28An%28315%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23specificVolume%22%2CFwd%2CDet%28An%28314%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23temperature%22%2CFwd%2CDet%28An%28313%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23waterAbsorption%22%2CFwd%2CDet%28An%28235%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29%2CRel%28%22http%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23type%22%2CFwd%2CDet%28An%2844%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28Rel%28%22http%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23type%22%2CFwd%2CDet%28An%2885%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29%29%29%29&sparklis-path=DDDRRRDDDRRRRDD&entity_lexicon_select=http%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23label&concept_lexicons_select=http%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23label%29 After running the INSERT SPARQL query with the [HTML helper](https://dataportal.material-digital.de/dataset/cross-project-use-case/resource/source record/) on the update query endpoint, the SAMM document is transformed into a simple PMDCo knowledge graph. The PMDCo graph can be queried with this example: [PMDCo-Query](https://dataportal.material-digital.de/sparklis/?title=Core+English+DBpedia&endpoint=https%3A%2F%2Fdataportal.material-digital.de%2Fdataset%2Ff2bca6a2-04df-47cb-9439-589e46ba60e2%2Ffuseki%2F%24%2Fsparql&sparklis-query=%5BVId%5DReturn%28Det%28An%288%2CModif%28Select%2CUnordered%29%2CClass%28%22http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FBFO_0000040%22%29%29%2CSome%28And%28Rel%28%22http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FRO_0000086%22%2CFwd%2CDet%28An%2845%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28And%28Rel%28%22http%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23type%22%2CFwd%2CDet%28An%2882%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FIAO_0000417%22%2CFwd%2CDet%28An%2881%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28Rel%28%22http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FOBI_0001938%22%2CFwd%2CDet%28An%28118%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28And%28Rel%28%22https%3A%2F%2Fqudt.org%2Fschema%2Fqudt%2FnumericValue%22%2CFwd%2CDet%28An%28155%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22https%3A%2F%2Fqudt.org%2Fschema%2Fqudt%2Funit%22%2CFwd%2CDet%28An%28154%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29%29%29%29%29%29%29%29%2CRel%28%22http%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23label%22%2CFwd%2CDet%28An%28193%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22http%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23type%22%2CFwd%2CDet%28An%28191%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29&sparklis-path=D&entity_lexicon_select=http%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23label&concept_lexicons_select=http%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23label%29 The original JSON payload can be reconstructed from the SAMM triples using this [JSON-Query](https://dataportal.material-digital.de/dataset/source record/fuseki/%24/sparql?query=PREFIX+rdf%3A+%3Chttp%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23%3E%0APREFIX+n1%3A+%3Curn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23%3E%0APREFIX+n3%3A+%3Curn%3Asamm%3Aorg.eclipse.esmf.samm%3Ameta-model%3A2.2.0%23%3E%0A%0ASELECT+%28CONCAT%28%0A++%27%7B%27%2C%0A++++%3FsectionsJson%2C+%27%2C%27%2C%0A++++%27%22thermophysicalProperty%22%3A%7B%27%2C+%3FthermoScalarsJson%2C%0A++++++%27%2C%22linearThermalExpansionCoefficient%22%3A%7B%27%2C+%3FltecJson%2C+%27%7D%7D%2C%27%2C%0A++++%27%22pvt%22%3A%27%2C+%3FpvtJson%2C%0A++%27%7D%27%0A%29+AS+%3Fjson%29%0A%0AWHERE+%7B%0A%0A++%7B%0A++++SELECT+%3Fmat%0A++++++%28CONCAT%28%27%5B%27%2C+GROUP_CONCAT%28%3FpvtEntry+%3B+SEPARATOR%3D%27%2C%27%29%2C+%27%5D%27%29+AS+%3FpvtJson%29%0A++++WHERE+%7B%0A++++++%7B%0A++++++++SELECT+%3Fmat+%3Fpvt%0A++++++++++%28CONCAT%28%27%7B%27%2C+GROUP_CONCAT%28%0A++++++++++++CONCAT%28%27%22%27%2C+STRAFTER%28STR%28%3Fp%29%2C+%27%23%27%29%2C+%27%22%3A%27%2C%0A+++++++++++++++++++IF%28REGEX%28STR%28%3Fv%29%2C+%27%5E-%3F%5B0-9%5D%2B%28%5C%5C.%5B0-9%5D%2B%29%3F%28%5BeE%5D%5B%2B-%5D%3F%5B0-9%5D%2B%29%3F%24%27%29%2C%0A++++++++++++++++++++++STR%28%3Fv%29%2C%0A++++++++++++++++++++++CONCAT%28%27%22%27%2C+STR%28%3Fv%29%2C+%27%22%27%29%29%29%0A++++++++++++%3B+SEPARATOR%3D%27%2C%27%29%0A++++++++++%2C+%27%7D%27%29+AS+%3FpvtEntry%29%0A++++++++WHERE+%7B%0A++++++++++%3Fmat+a+n1%3AMaterialData+.%0A++++++++++%3Fmat+n1%3AthermophysicalProperty%2Fn1%3Apvt+%3Fpvt+.%0A++++++++++%3Fpvt+%3Fp+%3Fv+.%0A++++++++++FILTER%28isLiteral%28%3Fv%29+%26%26+%3Fp+%21%3D+rdf%3Atype%29%0A++++++++%7D%0A++++++++GROUP+BY+%3Fmat+%3Fpvt%0A++++++%7D%0A++++%7D%0A++++GROUP+BY+%3Fmat%0A++%7D%0A%0A++%7B%0A++++SELECT+%3Fmat%0A++++++%28GROUP_CONCAT%28%0A++++++++CONCAT%28%27%22%27%2C+STRAFTER%28STR%28%3Fp%29%2C+%27%23%27%29%2C+%27%22%3A%27%2C%0A+++++++++++++++IF%28REGEX%28STR%28%3Fv%29%2C+%27%5E-%3F%5B0-9%5D%2B%28%5C%5C.%5B0-9%5D%2B%29%3F%28%5BeE%5D%5B%2B-%5D%3F%5B0-9%5D%2B%29%3F%24%27%29%2C%0A++++++++++++++++++STR%28%3Fv%29%2C%0A++++++++++++++++++CONCAT%28%27%22%27%2C+STR%28%3Fv%29%2C+%27%22%27%29%29%29%0A++++++++%3B+SEPARATOR%3D%27%2C%27%29+AS+%3FltecJson%29%0A++++WHERE+%7B%0A++++++%3Fmat+a+n1%3AMaterialData+.%0A++++++%3Fmat+n1%3AthermophysicalProperty%2Fn1%3AlinearThermalExpansionCoefficient+%3Fltec+.%0A++++++%3Fltec+%3Fp+%3Fv+.%0A++++++FILTER%28isLiteral%28%3Fv%29+%26%26+%3Fp+%21%3D+rdf%3Atype%29%0A++++%7D%0A++++GROUP+BY+%3Fmat%0A++%7D%0A%0A++%7B%0A++++SELECT+%3Fmat%0A++++++%28GROUP_CONCAT%28%0A++++++++CONCAT%28%27%22%27%2C+STRAFTER%28STR%28%3Fp%29%2C+%27%23%27%29%2C+%27%22%3A%27%2C%0A+++++++++++++++IF%28REGEX%28STR%28%3Fv%29%2C+%27%5E-%3F%5B0-9%5D%2B%28%5C%5C.%5B0-9%5D%2B%29%3F%28%5BeE%5D%5B%2B-%5D%3F%5B0-9%5D%2B%29%3F%24%27%29%2C%0A++++++++++++++++++STR%28%3Fv%29%2C%0A++++++++++++++++++CONCAT%28%27%22%27%2C+STR%28%3Fv%29%2C+%27%22%27%29%29%29%0A++++++++%3B+SEPARATOR%3D%27%2C%27%29+AS+%3FthermoScalarsJson%29%0A++++WHERE+%7B%0A++++++%3Fmat+a+n1%3AMaterialData+.%0A++++++%3Fmat+n1%3AthermophysicalProperty+%3Fthermo+.%0A++++++%3Fthermo+%3Fp+%3Fv+.%0A++++++FILTER%28isLiteral%28%3Fv%29+%26%26+%3Fp+%21%3D+rdf%3Atype%29%0A++++%7D%0A++++GROUP+BY+%3Fmat%0A++%7D%0A%0A++%7B%0A++++SELECT+%3Fmat+%28GROUP_CONCAT%28%3FsectionJson+%3B+SEPARATOR%3D%27%2C%27%29+AS+%3FsectionsJson%29%0A++++WHERE+%7B%0A++++++%7B%0A++++++++SELECT+%3Fmat+%3FsectionName%0A++++++++++%28CONCAT%28%27%22%27%2C+%3FsectionName%2C+%27%22%3A%7B%27%2C%0A++++++++++++GROUP_CONCAT%28%0A++++++++++++++CONCAT%28%27%22%27%2C+STRAFTER%28STR%28%3Fp%29%2C+%27%23%27%29%2C+%27%22%3A%27%2C%0A+++++++++++++++++++++IF%28REGEX%28STR%28%3Fv%29%2C+%27%5E-%3F%5B0-9%5D%2B%28%5C%5C.%5B0-9%5D%2B%29%3F%28%5BeE%5D%5B%2B-%5D%3F%5B0-9%5D%2B%29%3F%24%27%29%2C%0A++++++++++++++++++++++++STR%28%3Fv%29%2C%0A++++++++++++++++++++++++CONCAT%28%27%22%27%2C+STR%28%3Fv%29%2C+%27%22%27%29%29%29%0A++++++++++++++%3B+SEPARATOR%3D%27%2C%27%29%2C%0A++++++++++%27%7D%27%29+AS+%3FsectionJson%29%0A++++++++WHERE+%7B%0A++++++++++%3Fmat+a+n1%3AMaterialData+.%0A++++++++++n1%3AMaterialData+n3%3Aproperties%2Frdf%3Arest%2A%2Frdf%3Afirst+%3FsectionProp+.%0A++++++++++BIND%28STRAFTER%28STR%28%3FsectionProp%29%2C+%27%23%27%29+AS+%3FsectionName%29%0A++++++++++FILTER%28%3FsectionName+%21%3D+%27thermophysicalProperty%27%29%0A++++++++++%3Fmat+%3FsectionProp+%3FsectionInst+.%0A++++++++++%3FsectionInst+%3Fp+%3Fv+.%0A++++++++++FILTER%28isLiteral%28%3Fv%29+%26%26+%3Fp+%21%3D+rdf%3Atype%29%0A++++++++%7D%0A++++++++GROUP+BY+%3Fmat+%3FsectionName%0A++++++%7D%0A++++%7D%0A++++GROUP+BY+%3Fmat%0A++%7D%0A%0A%7D%29

Project: EDCar
Published by admin
Back to browse RDF metadata

12

Files & access

3

Graphs

1959

RDF resources

84%

Quality

Dataset identity

Stable URI
https://datagraph.dev.matportal.org/id/dataset/cross-project-use-case Open
Portal page
/datasets/cross-project-use-case Open
RDF Turtle
https://datagraph.dev.matportal.org/data/dataset/cross-project-use-case.ttl Open
License
Reuse license not specified
Publisher
Matthias Büschelberger
Published by
admin
Project
EDCar
Version
Not specified
Identifier
f2bca6a2-04df-47cb-9439-589e46ba60e2

Use this dataset

To work with this dataset in scripts or Jupyter notebooks, copy the public RDF Turtle URL or use the SPARQL query template below.

RDF URL
https://datagraph.dev.matportal.org/data/dataset/cross-project-use-case.ttl
Named Graph
https://datagraph.dev.matportal.org/id/graph/cross-project-use-case/pmdco-full-5e9d6d6b

SPARQL query template

SELECT ?s ?p ?o WHERE {
  VALUES ?g { <https://datagraph.dev.matportal.org/id/graph/cross-project-use-case/pmdco-full-5e9d6d6b> <https://datagraph.dev.matportal.org/id/graph/cross-project-use-case/material-data-test-pa6gf30-joined-6ffde9ce> <https://datagraph.dev.matportal.org/id/graph/cross-project-use-case/materialdataam3010-2c5241c7> }
  GRAPH ?g { ?s ?p ?o }
}
LIMIT 100
Open in SPARQL workbench

Related ontologies and catalogue context

pmdco
catena-x
edcar
material data
pmdco
samm
sparql

Files & access

12 file/access items

MaterialDataAM3010.ttl

Material Data Model

text/turtle
text/turtle
Open file/access URL

SPARQL

Public file, distribution, or access URL

SPARQL
application/sparql-results+xml
Open file/access URL

SAMM-PMDCo.png

Public file, distribution, or access URL

PNG
image/png
Open file/access URL

material_data_test_pa6gf30.json

Example Payload

JSON
application/json
Open file/access URL

material_data_test_pa6gf30-joined.ttl

RDF representation of the PA6GF30 material instance data, converted from [material_data_test_pa6gf30.json](https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/5f7d5a69-f8f5-49d1-9780-c3ecdc0e11ec/download/material_data_test_pa6gf30.json) using the RDFConverter tool with a SAMM-specific YARRRML mapping. Conforms to the [MaterialData SAMM aspect model](https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/2c5241c7-d6dc-46f7-b606-f85db755e49a/download/materialdataam3010.ttl). This is the intermediate representation in the pipeline — the input to [pmdco-mapping-insert.sparql](https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/30780c7d-e08b-4607-b83a-c2dd20e44e89/download/pmdco-mapping-insert.sparql) which produces the final PMDCo output graph.

text/turtle; charset=utf-8
text/turtle
Open file/access URL

pmdco-mapping-insert.html

small helper page running sparql querys from file

HTML
text/html
Open file/access URL

pmdco-mapping-insert.sparql

Public file, distribution, or access URL

sparql
application/sparql-query
Open file/access URL

pmdco-full.ttl

Public file, distribution, or access URL

text/turtle
text/turtle
Open file/access URL

cross_project_usecase.ipynb

Jupyter notebook demonstrating the full Catena-X → PMDCo conversion pipeline. Retrieves material data from a Catena-X dataspace via an Eclipse Dataspace Connector (EDC), converts it to RDF using the [RDFConverter](https://github.com/materialdigital/RDFConverter) tool with a SAMM-specific YARRRML mapping, cleans provenance triples, and loads the result into a triplestore. Requires EDC access credentials and a running RDFConverter instance — see notebook comments for configuration.

ipynb
application/x-ipynb+json
Open file/access URL

MaterialDataAM3010.ttl

Public file, distribution, or access URL

turtle
text/turtle
Open file/access URL

material_data_test_pa6gf30-joined.ttl

Public file, distribution, or access URL

turtle
text/turtle
Open file/access URL

pmdco-full.ttl

Public file, distribution, or access URL

turtle
text/turtle
Open file/access URL

File preview

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

Named graphs

Query this data
Graph URI Status Triples RDF resources
https://datagraph.dev.matportal.org/id/graph/cross-project-use-case/pmdco-full-5e9d6d6b published 10,756 1,325
https://datagraph.dev.matportal.org/id/graph/cross-project-use-case/material-data-test-pa6gf30-joined-6ffde9ce published 2,775 569
https://datagraph.dev.matportal.org/id/graph/cross-project-use-case/materialdataam3010-2c5241c7 published 187 65

RDF resources

nil

RDF resource

Open resource

float

RDF resource

Open resource

string

RDF resource

Open resource

Density

RDF resource

Open resource

FlexuralModulusCharacteristic

RDF resource

Open resource

FlexuralStrengthCharacteristic

RDF resource

Open resource

GlassTransitionTemperature

RDF resource

Open resource

HumidityCharacteristic

RDF resource

Open resource

ImpactStrengthCharacteristic

RDF resource

Open resource

LinearThermalExpansionCoefficientCharacteristic

RDF resource

Open resource

LinearThermalExpansionCoefficientEntity

RDF resource

Open resource

LinearThermalExpansionCoefficientParallelCharacteristic

RDF resource

Open resource

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.

Clear

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 {
  VALUES ?g { <https://datagraph.dev.matportal.org/id/graph/cross-project-use-case/pmdco-full-5e9d6d6b> <https://datagraph.dev.matportal.org/id/graph/cross-project-use-case/material-data-test-pa6gf30-joined-6ffde9ce> <https://datagraph.dev.matportal.org/id/graph/cross-project-use-case/materialdataam3010-2c5241c7> }
  GRAPH ?g { ?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
84%
Maturity
review_ready
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
cross-project-use-case
DCAT
https://datagraph.dev.matportal.org/id/dataset/cross-project-use-case
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/cross-project-use-case/mirror-package",
  "type": "matportal:SemanticMirrorPackage",
  "dataset": "https://datagraph.dev.matportal.org/datasets/cross-project-use-case",
  "dataset_slug": "cross-project-use-case",
  "generated_at": "2026-07-16T21:16:39.406914+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": 12,
    "graphs": 3,
    "indexed_entities": 1959,
    "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_53cc966146209152",
  "slug": "cross-project-use-case",
  "title": "Cross Project Use Case",
  "description": "This dataset documents the conversion of polymer material data from the **Catena-X dataspace** into a **[PMDCo](https://github.com/materialdigital/core-ontology)**-conformant knowledge graph. The source data is a PA6GF30 (30% glass-filled polyamide 6) material property dataset conforming to the [SAMM `MaterialData` aspect model](https://dataportal.material-digital.de/dataset/source record/resource/source record/download/materialdataam3010.ttl) as used in the Catena-X dataspace standard. ## Conversion Pipeline 1. [Instance data](https://dataportal.material-digital.de/dataset/source record/resource/source record/download/material_data_test_pa6gf30.json) is retrieved from a Catena-X dataspace via an Eclipse Dataspace Connector (EDC) 2. The JSON is converted to RDF using the RDFConverter tool with a SAMM-specific YARRRML mapping, producing the [SAMM semantic document](PLACEHOLDER_DATASET1_JOINED_TTL) 3. A [SPARQL INSERT query](https://dataportal.material-digital.de/dataset/source record/resource/source record/download/pmdco-mapping-insert.sparql) transforms the SAMM representation into PMDCo-conformant triples, mapping SAMM units to QUDT equivalents and material properties to PMDCo quality classes 4. The [output graph](PLACEHOLDER_DATASET1_PMDCO_TTL) is a standalone PMDCo knowledge graph of the PA6GF30 material The [SAMM aspect model schema](https://dataportal.material-digital.de/dataset/source record/resource/source record/download/materialdataam3010.ttl) and the [mapping diagram](https://dataportal.material-digital.de/dataset/source record/resource/source record/download/samm-pmdco.png) illustrate the conceptual mapping between the two representations. The [Jupyter notebook](https://dataportal.material-digital.de/dataset/source record/resource/source record/download/cross_project_usecase.ipynb) demonstrates the full pipeline end-to-end. ## Part of Cross-Dataspace Demonstration This dataset is part of a three-dataset series: - **This dataset** — Catena-X SAMM → PMDCo conversion - [steel-inspection-document-mapro](https://dataportal.material-digital.de/dataset/steel-inspection-document-mapro) — Manufacturing-X AAS → PMDCo conversion - [pmd-x-cross-dataspace-demo](https://dataportal.material-digital.de/dataset/pmd-x-cross-dataspace-demo) — joint assembly graph and cross-dataspace SPARQL queries An example query on the SAMM graph can be found here: [SAMM-Query](https://dataportal.material-digital.de/sparklis/?title=cross-project-use-case&endpoint=https%3A%2F%2Fdataportal.material-digital.de%2Fdataset%2Ff2bca6a2-04df-47cb-9439-589e46ba60e2%2Ffuseki%2F%24%2Fsparql&sparklis-query=%5BVId%5DReturn%28Det%28An%288%2CModif%28Select%2CUnordered%29%2CClass%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23MaterialData%22%29%29%2CSome%28And%28Rel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23materialInformation%22%2CFwd%2CDet%28An%2848%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28And%28Rel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23materialIdentifier%22%2CFwd%2CDet%28An%28122%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23materialName%22%2CFwd%2CDet%28An%28121%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23mechanicalProperty%22%2CFwd%2CDet%28An%2847%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28And%28Rel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23flexuralModulus%22%2CFwd%2CDet%28An%28163%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23flexuralStrength%22%2CFwd%2CDet%28An%28162%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23impactStrength%22%2CFwd%2CDet%28An%28161%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23strainAtBreak%22%2CFwd%2CDet%28An%28160%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23stressAtBreak%22%2CFwd%2CDet%28An%28159%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23youngsModulus%22%2CFwd%2CDet%28An%28158%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23physicalProperty%22%2CFwd%2CDet%28An%2846%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28Rel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23density%22%2CFwd%2CDet%28An%28199%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23thermophysicalProperty%22%2CFwd%2CDet%28An%2845%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28And%28Rel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23glassTransitionTemperature%22%2CFwd%2CDet%28An%28240%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23humidity%22%2CFwd%2CDet%28An%28239%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23linearThermalExpansionCoefficient%22%2CFwd%2CDet%28An%28238%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28And%28Rel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23linearThermalExpansionCoefficientParallel%22%2CFwd%2CDet%28An%28277%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23linearThermalExpansionCoefficientTransverse%22%2CFwd%2CDet%28An%28276%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23meltingTemperature%22%2CFwd%2CDet%28An%28237%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23pvt%22%2CFwd%2CDet%28An%28236%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28And%28Rel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23pressure%22%2CFwd%2CDet%28An%28315%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23specificVolume%22%2CFwd%2CDet%28An%28314%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23temperature%22%2CFwd%2CDet%28An%28313%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29%2CRel%28%22urn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23waterAbsorption%22%2CFwd%2CDet%28An%28235%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29%2CRel%28%22http%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23type%22%2CFwd%2CDet%28An%2844%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28Rel%28%22http%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23type%22%2CFwd%2CDet%28An%2885%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29%29%29%29&sparklis-path=DDDRRRDDDRRRRDD&entity_lexicon_select=http%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23label&concept_lexicons_select=http%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23label%29 After running the INSERT SPARQL query with the [HTML helper](https://dataportal.material-digital.de/dataset/cross-project-use-case/resource/source record/) on the update query endpoint, the SAMM document is transformed into a simple PMDCo knowledge graph. The PMDCo graph can be queried with this example: [PMDCo-Query](https://dataportal.material-digital.de/sparklis/?title=Core+English+DBpedia&endpoint=https%3A%2F%2Fdataportal.material-digital.de%2Fdataset%2Ff2bca6a2-04df-47cb-9439-589e46ba60e2%2Ffuseki%2F%24%2Fsparql&sparklis-query=%5BVId%5DReturn%28Det%28An%288%2CModif%28Select%2CUnordered%29%2CClass%28%22http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FBFO_0000040%22%29%29%2CSome%28And%28Rel%28%22http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FRO_0000086%22%2CFwd%2CDet%28An%2845%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28And%28Rel%28%22http%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23type%22%2CFwd%2CDet%28An%2882%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FIAO_0000417%22%2CFwd%2CDet%28An%2881%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28Rel%28%22http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FOBI_0001938%22%2CFwd%2CDet%28An%28118%2CModif%28Select%2CUnordered%29%2CThing%29%2CSome%28And%28Rel%28%22https%3A%2F%2Fqudt.org%2Fschema%2Fqudt%2FnumericValue%22%2CFwd%2CDet%28An%28155%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22https%3A%2F%2Fqudt.org%2Fschema%2Fqudt%2Funit%22%2CFwd%2CDet%28An%28154%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29%29%29%29%29%29%29%29%2CRel%28%22http%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23label%22%2CFwd%2CDet%28An%28193%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%2CRel%28%22http%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23type%22%2CFwd%2CDet%28An%28191%2CModif%28Select%2CUnordered%29%2CThing%29%2CNone%29%29%29%29%29%29&sparklis-path=D&entity_lexicon_select=http%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23label&concept_lexicons_select=http%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23label%29 The original JSON payload can be reconstructed from the SAMM triples using this [JSON-Query](https://dataportal.material-digital.de/dataset/source record/fuseki/%24/sparql?query=PREFIX+rdf%3A+%3Chttp%3A%2F%2Fwww.w3.org%2F1999%2F02%2F22-rdf-syntax-ns%23%3E%0APREFIX+n1%3A+%3Curn%3Asamm%3Aio.catenax.material_data%3A1.0.0%23%3E%0APREFIX+n3%3A+%3Curn%3Asamm%3Aorg.eclipse.esmf.samm%3Ameta-model%3A2.2.0%23%3E%0A%0ASELECT+%28CONCAT%28%0A++%27%7B%27%2C%0A++++%3FsectionsJson%2C+%27%2C%27%2C%0A++++%27%22thermophysicalProperty%22%3A%7B%27%2C+%3FthermoScalarsJson%2C%0A++++++%27%2C%22linearThermalExpansionCoefficient%22%3A%7B%27%2C+%3FltecJson%2C+%27%7D%7D%2C%27%2C%0A++++%27%22pvt%22%3A%27%2C+%3FpvtJson%2C%0A++%27%7D%27%0A%29+AS+%3Fjson%29%0A%0AWHERE+%7B%0A%0A++%7B%0A++++SELECT+%3Fmat%0A++++++%28CONCAT%28%27%5B%27%2C+GROUP_CONCAT%28%3FpvtEntry+%3B+SEPARATOR%3D%27%2C%27%29%2C+%27%5D%27%29+AS+%3FpvtJson%29%0A++++WHERE+%7B%0A++++++%7B%0A++++++++SELECT+%3Fmat+%3Fpvt%0A++++++++++%28CONCAT%28%27%7B%27%2C+GROUP_CONCAT%28%0A++++++++++++CONCAT%28%27%22%27%2C+STRAFTER%28STR%28%3Fp%29%2C+%27%23%27%29%2C+%27%22%3A%27%2C%0A+++++++++++++++++++IF%28REGEX%28STR%28%3Fv%29%2C+%27%5E-%3F%5B0-9%5D%2B%28%5C%5C.%5B0-9%5D%2B%29%3F%28%5BeE%5D%5B%2B-%5D%3F%5B0-9%5D%2B%29%3F%24%27%29%2C%0A++++++++++++++++++++++STR%28%3Fv%29%2C%0A++++++++++++++++++++++CONCAT%28%27%22%27%2C+STR%28%3Fv%29%2C+%27%22%27%29%29%29%0A++++++++++++%3B+SEPARATOR%3D%27%2C%27%29%0A++++++++++%2C+%27%7D%27%29+AS+%3FpvtEntry%29%0A++++++++WHERE+%7B%0A++++++++++%3Fmat+a+n1%3AMaterialData+.%0A++++++++++%3Fmat+n1%3AthermophysicalProperty%2Fn1%3Apvt+%3Fpvt+.%0A++++++++++%3Fpvt+%3Fp+%3Fv+.%0A++++++++++FILTER%28isLiteral%28%3Fv%29+%26%26+%3Fp+%21%3D+rdf%3Atype%29%0A++++++++%7D%0A++++++++GROUP+BY+%3Fmat+%3Fpvt%0A++++++%7D%0A++++%7D%0A++++GROUP+BY+%3Fmat%0A++%7D%0A%0A++%7B%0A++++SELECT+%3Fmat%0A++++++%28GROUP_CONCAT%28%0A++++++++CONCAT%28%27%22%27%2C+STRAFTER%28STR%28%3Fp%29%2C+%27%23%27%29%2C+%27%22%3A%27%2C%0A+++++++++++++++IF%28REGEX%28STR%28%3Fv%29%2C+%27%5E-%3F%5B0-9%5D%2B%28%5C%5C.%5B0-9%5D%2B%29%3F%28%5BeE%5D%5B%2B-%5D%3F%5B0-9%5D%2B%29%3F%24%27%29%2C%0A++++++++++++++++++STR%28%3Fv%29%2C%0A++++++++++++++++++CONCAT%28%27%22%27%2C+STR%28%3Fv%29%2C+%27%22%27%29%29%29%0A++++++++%3B+SEPARATOR%3D%27%2C%27%29+AS+%3FltecJson%29%0A++++WHERE+%7B%0A++++++%3Fmat+a+n1%3AMaterialData+.%0A++++++%3Fmat+n1%3AthermophysicalProperty%2Fn1%3AlinearThermalExpansionCoefficient+%3Fltec+.%0A++++++%3Fltec+%3Fp+%3Fv+.%0A++++++FILTER%28isLiteral%28%3Fv%29+%26%26+%3Fp+%21%3D+rdf%3Atype%29%0A++++%7D%0A++++GROUP+BY+%3Fmat%0A++%7D%0A%0A++%7B%0A++++SELECT+%3Fmat%0A++++++%28GROUP_CONCAT%28%0A++++++++CONCAT%28%27%22%27%2C+STRAFTER%28STR%28%3Fp%29%2C+%27%23%27%29%2C+%27%22%3A%27%2C%0A+++++++++++++++IF%28REGEX%28STR%28%3Fv%29%2C+%27%5E-%3F%5B0-9%5D%2B%28%5C%5C.%5B0-9%5D%2B%29%3F%28%5BeE%5D%5B%2B-%5D%3F%5B0-9%5D%2B%29%3F%24%27%29%2C%0A++++++++++++++++++STR%28%3Fv%29%2C%0A++++++++++++++++++CONCAT%28%27%22%27%2C+STR%28%3Fv%29%2C+%27%22%27%29%29%29%0A++++++++%3B+SEPARATOR%3D%27%2C%27%29+AS+%3FthermoScalarsJson%29%0A++++WHERE+%7B%0A++++++%3Fmat+a+n1%3AMaterialData+.%0A++++++%3Fmat+n1%3AthermophysicalProperty+%3Fthermo+.%0A++++++%3Fthermo+%3Fp+%3Fv+.%0A++++++FILTER%28isLiteral%28%3Fv%29+%26%26+%3Fp+%21%3D+rdf%3Atype%29%0A++++%7D%0A++++GROUP+BY+%3Fmat%0A++%7D%0A%0A++%7B%0A++++SELECT+%3Fmat+%28GROUP_CONCAT%28%3FsectionJson+%3B+SEPARATOR%3D%27%2C%27%29+AS+%3FsectionsJson%29%0A++++WHERE+%7B%0A++++++%7B%0A++++++++SELECT+%3Fmat+%3FsectionName%0A++++++++++%28CONCAT%28%27%22%27%2C+%3FsectionName%2C+%27%22%3A%7B%27%2C%0A++++++++++++GROUP_CONCAT%28%0A++++++++++++++CONCAT%28%27%22%27%2C+STRAFTER%28STR%28%3Fp%29%2C+%27%23%27%29%2C+%27%22%3A%27%2C%0A+++++++++++++++++++++IF%28REGEX%28STR%28%3Fv%29%2C+%27%5E-%3F%5B0-9%5D%2B%28%5C%5C.%5B0-9%5D%2B%29%3F%28%5BeE%5D%5B%2B-%5D%3F%5B0-9%5D%2B%29%3F%24%27%29%2C%0A++++++++++++++++++++++++STR%28%3Fv%29%2C%0A++++++++++++++++++++++++CONCAT%28%27%22%27%2C+STR%28%3Fv%29%2C+%27%22%27%29%29%29%0A++++++++++++++%3B+SEPARATOR%3D%27%2C%27%29%2C%0A++++++++++%27%7D%27%29+AS+%3FsectionJson%29%0A++++++++WHERE+%7B%0A++++++++++%3Fmat+a+n1%3AMaterialData+.%0A++++++++++n1%3AMaterialData+n3%3Aproperties%2Frdf%3Arest%2A%2Frdf%3Afirst+%3FsectionProp+.%0A++++++++++BIND%28STRAFTER%28STR%28%3FsectionProp%29%2C+%27%23%27%29+AS+%3FsectionName%29%0A++++++++++FILTER%28%3FsectionName+%21%3D+%27thermophysicalProperty%27%29%0A++++++++++%3Fmat+%3FsectionProp+%3FsectionInst+.%0A++++++++++%3FsectionInst+%3Fp+%3Fv+.%0A++++++++++FILTER%28isLiteral%28%3Fv%29+%26%26+%3Fp+%21%3D+rdf%3Atype%29%0A++++++++%7D%0A++++++++GROUP+BY+%3Fmat+%3FsectionName%0A++++++%7D%0A++++%7D%0A++++GROUP+BY+%3Fmat%0A++%7D%0A%0A%7D%29",
  "license": "License not specified",
  "creators": [
    "Matthias Büschelberger"
  ],
  "organization": "EDCar",
  "project": "EDCar",
  "published_by": "admin",
  "groups": [],
  "keywords": [
    "catena-x",
    "edcar",
    "material data",
    "pmdco",
    "samm",
    "sparql"
  ],
  "tags": [
    "catena-x",
    "edcar",
    "material data",
    "pmdco",
    "samm",
    "sparql"
  ],
  "visibility": "public",
  "status": "published",
  "ontology_annotations": [
    "pmdco"
  ],
  "distributions": [
    {
      "title": "MaterialDataAM3010.ttl",
      "filename": "materialdataam3010.ttl",
      "description": "Material Data Model",
      "visibility": "public",
      "status": "published",
      "media_type": "text/turtle",
      "format": "text/turtle",
      "checksum_sha256": "",
      "size_bytes": 0,
      "source_uri": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/2c5241c7-d6dc-46f7-b606-f85db755e49a/download/materialdataam3010.ttl",
      "download_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/2c5241c7-d6dc-46f7-b606-f85db755e49a/download/materialdataam3010.ttl",
      "access_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/2c5241c7-d6dc-46f7-b606-f85db755e49a/download/materialdataam3010.ttl",
      "uri": "https://datagraph.dev.matportal.org/id/distribution/cross-project-use-case/resource_b5874bd061e90c54",
      "url_type": "upload",
      "rdf_format": null,
      "ontology_annotations": [],
      "data_dictionary": [],
      "views": [
        {
          "id": "",
          "title": "RDF preview",
          "view_type": "rdf",
          "url": "",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": true,
          "config": {
            "mode": "rdf-preview"
          }
        },
        {
          "id": "",
          "title": "Download",
          "view_type": "download",
          "url": "",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": true,
          "config": {}
        },
        {
          "id": "",
          "title": "Create Mapping",
          "view_type": "mapping",
          "url": "",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": false,
          "config": {
            "workflow": "ontology-field-mapping"
          }
        },
        {
          "id": "",
          "title": "Query",
          "view_type": "sparql",
          "url": "",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": false,
          "config": {
            "workflow": "guarded-sparql"
          }
        }
      ],
      "datastore_active": false,
      "datastore_enabled": false,
      "has_views": true,
      "mapping_supported": true,
      "query_supported": true,
      "transform_provenance": {
        "was_derived_from": "https://dataportal.material-digital.de/dataset/cross-project-use-case",
        "harvested_from": "https://dataportal.material-digital.de/",
        "source_resource_id": "2c5241c7-d6dc-46f7-b606-f85db755e49a"
      },
      "id": "resource_b5874bd061e90c54",
      "dataset_slug": "cross-project-use-case",
      "created_at": "2026-06-14T01:24:33.930808Z",
      "updated_at": "2026-06-14T01:24:33.930808Z"
    },
    {
      "title": "SPARQL",
      "filename": "sparql",
      "description": "",
      "visibility": "public",
      "status": "published",
      "media_type": "application/sparql-results+xml",
      "format": "SPARQL",
      "checksum_sha256": "",
      "size_bytes": 0,
      "source_uri": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/fuseki/$/sparql",
      "download_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/fuseki/$/sparql",
      "access_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/fuseki/$/sparql",
      "uri": "https://datagraph.dev.matportal.org/id/distribution/cross-project-use-case/resource_006a4b8a41b4276b",
      "url_type": "external",
      "rdf_format": null,
      "ontology_annotations": [],
      "data_dictionary": [],
      "views": [
        {
          "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/cross-project-use-case",
        "harvested_from": "https://dataportal.material-digital.de/",
        "source_resource_id": "27ce4ec0-253f-47d8-b5da-8c8d1b5881f9"
      },
      "id": "resource_006a4b8a41b4276b",
      "dataset_slug": "cross-project-use-case",
      "created_at": "2026-06-14T01:24:33.939178Z",
      "updated_at": "2026-06-14T01:24:33.939178Z"
    },
    {
      "title": "SAMM-PMDCo.png",
      "filename": "samm-pmdco.png",
      "description": "",
      "visibility": "public",
      "status": "published",
      "media_type": "image/png",
      "format": "PNG",
      "checksum_sha256": "",
      "size_bytes": 0,
      "source_uri": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/32121b96-7360-468b-a65b-d775f4685345/download/samm-pmdco.png",
      "download_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/32121b96-7360-468b-a65b-d775f4685345/download/samm-pmdco.png",
      "access_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/32121b96-7360-468b-a65b-d775f4685345/download/samm-pmdco.png",
      "uri": "https://datagraph.dev.matportal.org/id/distribution/cross-project-use-case/resource_5aca8c93fb95e9b5",
      "url_type": "upload",
      "rdf_format": null,
      "ontology_annotations": [],
      "data_dictionary": [],
      "views": [
        {
          "id": "",
          "title": "Image preview",
          "view_type": "image",
          "url": "",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": true,
          "config": {}
        },
        {
          "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/cross-project-use-case",
        "harvested_from": "https://dataportal.material-digital.de/",
        "source_resource_id": "32121b96-7360-468b-a65b-d775f4685345"
      },
      "id": "resource_5aca8c93fb95e9b5",
      "dataset_slug": "cross-project-use-case",
      "created_at": "2026-06-14T01:24:33.947451Z",
      "updated_at": "2026-06-14T01:24:33.947451Z"
    },
    {
      "title": "material_data_test_pa6gf30.json",
      "filename": "material_data_test_pa6gf30.json",
      "description": "Example Payload",
      "visibility": "public",
      "status": "published",
      "media_type": "application/json",
      "format": "JSON",
      "checksum_sha256": "",
      "size_bytes": 0,
      "source_uri": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/5f7d5a69-f8f5-49d1-9780-c3ecdc0e11ec/download/material_data_test_pa6gf30.json",
      "download_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/5f7d5a69-f8f5-49d1-9780-c3ecdc0e11ec/download/material_data_test_pa6gf30.json",
      "access_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/5f7d5a69-f8f5-49d1-9780-c3ecdc0e11ec/download/material_data_test_pa6gf30.json",
      "uri": "https://datagraph.dev.matportal.org/id/distribution/cross-project-use-case/resource_1d3df638fc72fc09",
      "url_type": "upload",
      "rdf_format": null,
      "ontology_annotations": [],
      "data_dictionary": [],
      "views": [
        {
          "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/cross-project-use-case",
        "harvested_from": "https://dataportal.material-digital.de/",
        "source_resource_id": "5f7d5a69-f8f5-49d1-9780-c3ecdc0e11ec"
      },
      "id": "resource_1d3df638fc72fc09",
      "dataset_slug": "cross-project-use-case",
      "created_at": "2026-06-14T01:24:33.955818Z",
      "updated_at": "2026-06-14T01:24:33.955818Z"
    },
    {
      "title": "material_data_test_pa6gf30-joined.ttl",
      "filename": "material_data_test_pa6gf30-joined.ttl",
      "description": "RDF representation of the PA6GF30 material instance data, converted from\r\n[material_data_test_pa6gf30.json](https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/5f7d5a69-f8f5-49d1-9780-c3ecdc0e11ec/download/material_data_test_pa6gf30.json)\r\nusing the RDFConverter tool with a SAMM-specific YARRRML mapping.\r\nConforms to the [MaterialData SAMM aspect model](https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/2c5241c7-d6dc-46f7-b606-f85db755e49a/download/materialdataam3010.ttl).\r\nThis is the intermediate representation in the pipeline — the input to\r\n[pmdco-mapping-insert.sparql](https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/30780c7d-e08b-4607-b83a-c2dd20e44e89/download/pmdco-mapping-insert.sparql)\r\nwhich produces the final PMDCo output graph.",
      "visibility": "public",
      "status": "published",
      "media_type": "text/turtle",
      "format": "text/turtle; charset=utf-8",
      "checksum_sha256": "",
      "size_bytes": 96449,
      "source_uri": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/6ffde9ce-f6c6-4214-8949-a60fb3123157/download/material_data_test_pa6gf30-joined.ttl",
      "download_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/6ffde9ce-f6c6-4214-8949-a60fb3123157/download/material_data_test_pa6gf30-joined.ttl",
      "access_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/6ffde9ce-f6c6-4214-8949-a60fb3123157/download/material_data_test_pa6gf30-joined.ttl",
      "uri": "https://datagraph.dev.matportal.org/id/distribution/cross-project-use-case/resource_eb65fccc4a6c1bb6",
      "url_type": "upload",
      "rdf_format": null,
      "ontology_annotations": [],
      "data_dictionary": [],
      "views": [
        {
          "id": "",
          "title": "RDF preview",
          "view_type": "rdf",
          "url": "",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": true,
          "config": {
            "mode": "rdf-preview"
          }
        },
        {
          "id": "",
          "title": "Download",
          "view_type": "download",
          "url": "",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": true,
          "config": {}
        },
        {
          "id": "",
          "title": "Create Mapping",
          "view_type": "mapping",
          "url": "",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": false,
          "config": {
            "workflow": "ontology-field-mapping"
          }
        },
        {
          "id": "",
          "title": "Query",
          "view_type": "sparql",
          "url": "",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": false,
          "config": {
            "workflow": "guarded-sparql"
          }
        }
      ],
      "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/cross-project-use-case",
        "harvested_from": "https://dataportal.material-digital.de/",
        "source_resource_id": "6ffde9ce-f6c6-4214-8949-a60fb3123157"
      },
      "id": "resource_eb65fccc4a6c1bb6",
      "dataset_slug": "cross-project-use-case",
      "created_at": "2026-06-14T01:24:33.964301Z",
      "updated_at": "2026-06-14T01:24:33.964301Z"
    },
    {
      "title": "pmdco-mapping-insert.html",
      "filename": "pmdco-mapping-insert.html",
      "description": "small helper page running sparql querys from file",
      "visibility": "public",
      "status": "published",
      "media_type": "text/html",
      "format": "HTML",
      "checksum_sha256": "",
      "size_bytes": 3884,
      "source_uri": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/32e3bc55-a022-4edd-b5bc-7402c8ff5991/download/pmdco-mapping-insert.html",
      "download_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/32e3bc55-a022-4edd-b5bc-7402c8ff5991/download/pmdco-mapping-insert.html",
      "access_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/32e3bc55-a022-4edd-b5bc-7402c8ff5991/download/pmdco-mapping-insert.html",
      "uri": "https://datagraph.dev.matportal.org/id/distribution/cross-project-use-case/resource_58de3998493bdce1",
      "url_type": "upload",
      "rdf_format": null,
      "ontology_annotations": [],
      "data_dictionary": [],
      "views": [
        {
          "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/cross-project-use-case",
        "harvested_from": "https://dataportal.material-digital.de/",
        "source_resource_id": "32e3bc55-a022-4edd-b5bc-7402c8ff5991"
      },
      "id": "resource_58de3998493bdce1",
      "dataset_slug": "cross-project-use-case",
      "created_at": "2026-06-14T01:24:33.972828Z",
      "updated_at": "2026-06-14T01:24:33.972828Z"
    },
    {
      "title": "pmdco-mapping-insert.sparql",
      "filename": "pmdco-mapping-insert.sparql",
      "description": "",
      "visibility": "public",
      "status": "published",
      "media_type": "application/sparql-query",
      "format": "sparql",
      "checksum_sha256": "",
      "size_bytes": 5264,
      "source_uri": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/30780c7d-e08b-4607-b83a-c2dd20e44e89/download/pmdco-mapping-insert.sparql",
      "download_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/30780c7d-e08b-4607-b83a-c2dd20e44e89/download/pmdco-mapping-insert.sparql",
      "access_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/30780c7d-e08b-4607-b83a-c2dd20e44e89/download/pmdco-mapping-insert.sparql",
      "uri": "https://datagraph.dev.matportal.org/id/distribution/cross-project-use-case/resource_3da77752cf3dd933",
      "url_type": "upload",
      "rdf_format": null,
      "ontology_annotations": [],
      "data_dictionary": [],
      "views": [
        {
          "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/cross-project-use-case",
        "harvested_from": "https://dataportal.material-digital.de/",
        "source_resource_id": "30780c7d-e08b-4607-b83a-c2dd20e44e89"
      },
      "id": "resource_3da77752cf3dd933",
      "dataset_slug": "cross-project-use-case",
      "created_at": "2026-06-14T01:24:33.981758Z",
      "updated_at": "2026-06-14T01:24:33.981758Z"
    },
    {
      "title": "pmdco-full.ttl",
      "filename": "pmdco-full.ttl",
      "description": "",
      "visibility": "public",
      "status": "published",
      "media_type": "text/turtle",
      "format": "text/turtle",
      "checksum_sha256": "",
      "size_bytes": 0,
      "source_uri": "https://raw.githubusercontent.com/materialdigital/core-ontology/refs/heads/main/pmdco-full.ttl",
      "download_url": "https://raw.githubusercontent.com/materialdigital/core-ontology/refs/heads/main/pmdco-full.ttl",
      "access_url": "https://raw.githubusercontent.com/materialdigital/core-ontology/refs/heads/main/pmdco-full.ttl",
      "uri": "https://datagraph.dev.matportal.org/id/distribution/cross-project-use-case/resource_3746285a3b2d9f36",
      "url_type": "external",
      "rdf_format": null,
      "ontology_annotations": [],
      "data_dictionary": [],
      "views": [
        {
          "id": "",
          "title": "RDF preview",
          "view_type": "rdf",
          "url": "",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": true,
          "config": {
            "mode": "rdf-preview"
          }
        },
        {
          "id": "",
          "title": "Download",
          "view_type": "download",
          "url": "",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": true,
          "config": {}
        },
        {
          "id": "",
          "title": "Create Mapping",
          "view_type": "mapping",
          "url": "",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": false,
          "config": {
            "workflow": "ontology-field-mapping"
          }
        },
        {
          "id": "",
          "title": "Query",
          "view_type": "sparql",
          "url": "",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": false,
          "config": {
            "workflow": "guarded-sparql"
          }
        }
      ],
      "datastore_active": false,
      "datastore_enabled": false,
      "has_views": true,
      "mapping_supported": true,
      "query_supported": true,
      "transform_provenance": {
        "was_derived_from": "https://dataportal.material-digital.de/dataset/cross-project-use-case",
        "harvested_from": "https://dataportal.material-digital.de/",
        "source_resource_id": "5e9d6d6b-8468-44ad-891e-8119872da8e4"
      },
      "id": "resource_3746285a3b2d9f36",
      "dataset_slug": "cross-project-use-case",
      "created_at": "2026-06-14T01:24:33.990784Z",
      "updated_at": "2026-06-14T01:24:33.990784Z"
    },
    {
      "title": "cross_project_usecase.ipynb",
      "filename": "cross_project_usecase.ipynb",
      "description": "Jupyter notebook demonstrating the full Catena-X → PMDCo conversion pipeline.\r\nRetrieves material data from a Catena-X dataspace via an Eclipse Dataspace Connector (EDC),\r\nconverts it to RDF using the [RDFConverter](https://github.com/materialdigital/RDFConverter) tool\r\nwith a SAMM-specific YARRRML mapping, cleans provenance triples, and loads the result into a triplestore.\r\nRequires EDC access credentials and a running RDFConverter instance — see notebook comments for configuration.",
      "visibility": "public",
      "status": "published",
      "media_type": "application/x-ipynb+json",
      "format": "ipynb",
      "checksum_sha256": "",
      "size_bytes": 2340319,
      "source_uri": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/34889e74-c5da-4545-aabc-e8a12f96cfd3/download/cross_project_usecase.ipynb",
      "download_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/34889e74-c5da-4545-aabc-e8a12f96cfd3/download/cross_project_usecase.ipynb",
      "access_url": "https://dataportal.material-digital.de/dataset/f2bca6a2-04df-47cb-9439-589e46ba60e2/resource/34889e74-c5da-4545-aabc-e8a12f96cfd3/download/cross_project_usecase.ipynb",
      "uri": "https://datagraph.dev.matportal.org/id/distribution/cross-project-use-case/resource_95afff5ba07448cb",
      "url_type": "upload",
      "rdf_format": null,
      "ontology_annotations": [],
      "data_dictionary": [],
      "views": [
        {
          "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/cross-project-use-case",
        "harvested_from": "https://dataportal.material-digital.de/",
        "source_resource_id": "34889e74-c5da-4545-aabc-e8a12f96cfd3"
      },
      "id": "resource_95afff5ba07448cb",
      "dataset_slug": "cross-project-use-case",
      "created_at": "2026-06-14T01:24:34.000001Z",
      "updated_at": "2026-06-14T01:24:34.000001Z"
    },
    {
      "title": "MaterialDataAM3010.ttl",
      "filename": "materialdataam3010.ttl",
      "description": "",
      "visibility": "public",
      "status": "published",
      "media_type": "text/turtle",
      "format": "turtle",
      "checksum_sha256": "bba9b41dc831eff1bea983b2b537990a6e0dce7e276b5326c9e9d4666873c833",
      "size_bytes": 7887,
      "source_uri": "/data/datagraph/state/uploads/cross-project-use-case/graph_faa8729775b1c239/graph_faa8729775b1c239-materialdataam3010.ttl",
      "download_url": "https://datagraph.dev.matportal.org/data/distribution/cross-project-use-case/resource_651ecaa76933f1f9.ttl",
      "access_url": "https://datagraph.dev.matportal.org/data/distribution/cross-project-use-case/resource_651ecaa76933f1f9.ttl",
      "uri": "https://datagraph.dev.matportal.org/id/distribution/cross-project-use-case/resource_651ecaa76933f1f9",
      "url_type": "upload",
      "rdf_format": "turtle",
      "ontology_annotations": [],
      "data_dictionary": [],
      "views": [
        {
          "id": "resource_651ecaa76933f1f9-rdf",
          "title": "RDF graph",
          "view_type": "rdf",
          "url": "https://datagraph.dev.matportal.org/data/distribution/cross-project-use-case/resource_651ecaa76933f1f9.ttl",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": false,
          "config": {}
        },
        {
          "id": "resource_651ecaa76933f1f9-sparql",
          "title": "SPARQL",
          "view_type": "sparql",
          "url": "/datasets/cross-project-use-case/sparql",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": false,
          "config": {}
        }
      ],
      "datastore_active": false,
      "datastore_enabled": false,
      "has_views": true,
      "mapping_supported": false,
      "query_supported": false,
      "transform_provenance": {
        "was_generated_by": "native-rdf-ingest",
        "graph_id": "graph_faa8729775b1c239"
      },
      "id": "resource_651ecaa76933f1f9",
      "dataset_slug": "cross-project-use-case",
      "created_at": "2026-06-14T01:27:44.204797Z",
      "updated_at": "2026-06-14T01:27:44.204800Z"
    },
    {
      "title": "material_data_test_pa6gf30-joined.ttl",
      "filename": "material_data_test_pa6gf30-joined.ttl",
      "description": "",
      "visibility": "public",
      "status": "published",
      "media_type": "text/turtle",
      "format": "turtle",
      "checksum_sha256": "d7b1695569e9c924fb7374731686e68381f95ec5ce210219c7817772462bf324",
      "size_bytes": 96447,
      "source_uri": "/data/datagraph/state/uploads/cross-project-use-case/graph_c97b5d63fa0e2523/graph_c97b5d63fa0e2523-material-data-test-pa6gf30-joined.ttl",
      "download_url": "https://datagraph.dev.matportal.org/data/distribution/cross-project-use-case/resource_c17d3d629da5c0e1.ttl",
      "access_url": "https://datagraph.dev.matportal.org/data/distribution/cross-project-use-case/resource_c17d3d629da5c0e1.ttl",
      "uri": "https://datagraph.dev.matportal.org/id/distribution/cross-project-use-case/resource_c17d3d629da5c0e1",
      "url_type": "upload",
      "rdf_format": "turtle",
      "ontology_annotations": [],
      "data_dictionary": [],
      "views": [
        {
          "id": "resource_c17d3d629da5c0e1-rdf",
          "title": "RDF graph",
          "view_type": "rdf",
          "url": "https://datagraph.dev.matportal.org/data/distribution/cross-project-use-case/resource_c17d3d629da5c0e1.ttl",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": false,
          "config": {}
        },
        {
          "id": "resource_c17d3d629da5c0e1-sparql",
          "title": "SPARQL",
          "view_type": "sparql",
          "url": "/datasets/cross-project-use-case/sparql",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": false,
          "config": {}
        }
      ],
      "datastore_active": false,
      "datastore_enabled": false,
      "has_views": true,
      "mapping_supported": false,
      "query_supported": false,
      "transform_provenance": {
        "was_generated_by": "native-rdf-ingest",
        "graph_id": "graph_c97b5d63fa0e2523"
      },
      "id": "resource_c17d3d629da5c0e1",
      "dataset_slug": "cross-project-use-case",
      "created_at": "2026-06-14T01:27:51.658789Z",
      "updated_at": "2026-06-14T01:27:51.658792Z"
    },
    {
      "title": "pmdco-full.ttl",
      "filename": "pmdco-full.ttl",
      "description": "",
      "visibility": "public",
      "status": "published",
      "media_type": "text/turtle",
      "format": "turtle",
      "checksum_sha256": "1a72c2d889447b7b86f4ed7ea832e68c30a305f77f93ffb28ee80838645bad13",
      "size_bytes": 900949,
      "source_uri": "/data/datagraph/state/uploads/cross-project-use-case/graph_582e7c9a1c4fceb9/graph_582e7c9a1c4fceb9-pmdco-full.ttl",
      "download_url": "https://datagraph.dev.matportal.org/data/distribution/cross-project-use-case/resource_ce842b3772d53665.ttl",
      "access_url": "https://datagraph.dev.matportal.org/data/distribution/cross-project-use-case/resource_ce842b3772d53665.ttl",
      "uri": "https://datagraph.dev.matportal.org/id/distribution/cross-project-use-case/resource_ce842b3772d53665",
      "url_type": "upload",
      "rdf_format": "turtle",
      "ontology_annotations": [],
      "data_dictionary": [],
      "views": [
        {
          "id": "resource_ce842b3772d53665-rdf",
          "title": "RDF graph",
          "view_type": "rdf",
          "url": "https://datagraph.dev.matportal.org/data/distribution/cross-project-use-case/resource_ce842b3772d53665.ttl",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": false,
          "config": {}
        },
        {
          "id": "resource_ce842b3772d53665-sparql",
          "title": "SPARQL",
          "view_type": "sparql",
          "url": "/datasets/cross-project-use-case/sparql",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": false,
          "config": {}
        }
      ],
      "datastore_active": false,
      "datastore_enabled": false,
      "has_views": true,
      "mapping_supported": false,
      "query_supported": false,
      "transform_provenance": {
        "was_generated_by": "native-rdf-ingest",
        "graph_id": "graph_582e7c9a1c4fceb9"
      },
      "id": "resource_ce842b3772d53665",
      "dataset_slug": "cross-project-use-case",
      "created_at": "2026-06-14T01:27:59.809588Z",
      "updated_at": "2026-06-14T01:27:59.809591Z"
    }
  ],
  "graph_ids": [
    "graph_582e7c9a1c4fceb9",
    "graph_c97b5d63fa0e2523",
    "graph_faa8729775b1c239"
  ],
  "entity_count": 1959,
  "follower_count": 0,
  "contact_points": [
    {
      "name": "[{\"email\": \"matthias.bueschelberger@iwm.fraunhofer.de\", \"identifier\": \"\", \"name\": \"Matthias Büschelberger\", \"uri\": \"\", \"url\": \"\"}]",
      "email": "",
      "uri": "",
      "identifier": "",
      "url": ""
    }
  ],
  "publisher": "Matthias Büschelberger",
  "homepage": "https://dataportal.material-digital.de/dataset/cross-project-use-case",
  "landing_page": "https://dataportal.material-digital.de/dataset/cross-project-use-case",
  "release_date": "2026-02-19T09:24:33.400385",
  "modification_date": "2026-04-15T10:06:47.625223",
  "version": "",
  "version_notes": "",
  "identifier": "f2bca6a2-04df-47cb-9439-589e46ba60e2",
  "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/cross-project-use-case"
  ],
  "conforms_to": [],
  "is_referenced_by": [],
  "applicable_legislation": [],
  "has_version": [],
  "qualified_relations": [],
  "citation": "",
  "activity": [
    {
      "at": "2026-06-14T01:24:33.923079+00:00",
      "event": "dataset_created",
      "actor": "admin",
      "note": "Dataset registered in native DataGraph"
    },
    {
      "at": "2026-06-14T01:24:33.926663+00:00",
      "event": "dataset_imported",
      "actor": "admin",
      "note": "Imported/updated from Platform MaterialDigital CKAN API."
    },
    {
      "at": "2026-06-14T01:24:33.930808+00:00",
      "event": "resource_added",
      "actor": "admin",
      "resource_id": "resource_b5874bd061e90c54",
      "note": "MaterialDataAM3010.ttl"
    },
    {
      "at": "2026-06-14T01:24:33.939178+00:00",
      "event": "resource_added",
      "actor": "admin",
      "resource_id": "resource_006a4b8a41b4276b",
      "note": "SPARQL"
    },
    {
      "at": "2026-06-14T01:24:33.947451+00:00",
      "event": "resource_added",
      "actor": "admin",
      "resource_id": "resource_5aca8c93fb95e9b5",
      "note": "SAMM-PMDCo.png"
    },
    {
      "at": "2026-06-14T01:24:33.955818+00:00",
      "event": "resource_added",
      "actor": "admin",
      "resource_id": "resource_1d3df638fc72fc09",
      "note": "material_data_test_pa6gf30.json"
    },
    {
      "at": "2026-06-14T01:24:33.964301+00:00",
      "event": "resource_added",
      "actor": "admin",
      "resource_id": "resource_eb65fccc4a6c1bb6",
      "note": "material_data_test_pa6gf30-joined.ttl"
    },
    {
      "at": "2026-06-14T01:24:33.972828+00:00",
      "event": "resource_added",
      "actor": "admin",
      "resource_id": "resource_58de3998493bdce1",
      "note": "pmdco-mapping-insert.html"
    },
    {
      "at": "2026-06-14T01:24:33.981758+00:00",
      "event": "resource_added",
      "actor": "admin",
      "resource_id": "resource_3da77752cf3dd933",
      "note": "pmdco-mapping-insert.sparql"
    },
    {
      "at": "2026-06-14T01:24:33.990784+00:00",
      "event": "resource_added",
      "actor": "admin",
      "resource_id": "resource_3746285a3b2d9f36",
      "note": "pmdco-full.ttl"
    },
    {
      "at": "2026-06-14T01:24:34.000001+00:00",
      "event": "resource_added",
      "actor": "admin",
      "resource_id": "resource_95afff5ba07448cb",
      "note": "cross_project_usecase.ipynb"
    }
  ],
  "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": "2026-06-14T01:24:33.923079Z",
  "updated_at": "2026-06-14T01:28:01.555198Z"
}