> **PROTOTYPE:** a suggestion, not an official CIAAW or IUPAC page. Official values are at [ciaaw.org](https://ciaaw.org).

# Downloads


Every format holds the same triples. The Turtle is the converter's output, and the others are translated from it. The IRIs are placeholders until a persistent home is agreed.

## Current data

| Format | File | Size |
| --- | --- | --- |
| Turtle | [ciaaw.ttl](data/ciaaw.ttl) | 614 KB |
| RDF/XML | [ciaaw.rdf](data/ciaaw.rdf) | 1927 KB |
| JSON-LD | [ciaaw.jsonld](data/ciaaw.jsonld) | 1142 KB |
| N-Triples | [ciaaw.nt](data/ciaaw.nt) | 3361 KB |
| N3 | [ciaaw.n3](data/ciaaw.n3) | 614 KB |

## Single resources

Every element, isotope and declaration has its own page and Turtle file, and its IRI opens that page. For example, the page of [hydrogen-1](id/H-1.md) links to [H-1.ttl](id/H-1.ttl). GitHub Pages cannot choose a format per request, so software should add `.ttl` to an IRI, or read the `<link rel="alternate">` of the page.

## Mappings

[ciaaw.sssom.tsv](data/ciaaw.sssom.tsv) maps the elements and isotopes of the current data to their [Wikidata](https://www.wikidata.org) items (`skos:exactMatch`, matched on atomic number and number of neutrons) and to ChEBI (`skos:closeMatch`). It is an [SSSOM](https://mapping-commons.github.io/sssom/) mapping set in the TSV serialisation: a YAML header in comment lines, then one mapping per row. The license (CC0) covers the mappings only, not the CIAAW values.

## Revision example

A small sample after an invented revision of hydrogen. See the [revision example](revision-example.md).

| Format | File | Size |
| --- | --- | --- |
| Turtle | [ciaaw-revision-example.ttl](data/ciaaw-revision-example.ttl) | 25 KB |
| RDF/XML | [ciaaw-revision-example.rdf](data/ciaaw-revision-example.rdf) | 83 KB |
| JSON-LD | [ciaaw-revision-example.jsonld](data/ciaaw-revision-example.jsonld) | 46 KB |
| N-Triples | [ciaaw-revision-example.nt](data/ciaaw-revision-example.nt) | 138 KB |
| N3 | [ciaaw-revision-example.n3](data/ciaaw-revision-example.n3) | 25 KB |

## Model

The [DCTAP profile](model/model_dctap.csv) with its [configuration](model/dctap.yaml), and the generated SHACL shapes:

| Format | File | Size |
| --- | --- | --- |
| Turtle | [model_shacl.ttl](model/model_shacl.ttl) | 29 KB |
| RDF/XML | [model_shacl.rdf](model/model_shacl.rdf) | 88 KB |
| JSON-LD | [model_shacl.jsonld](model/model_shacl.jsonld) | 53 KB |
| N-Triples | [model_shacl.nt](model/model_shacl.nt) | 155 KB |
| N3 | [model_shacl.n3](model/model_shacl.n3) | 28 KB |

The diagrams are also available as [Markdown](model/diagrams.md).

## Querying the data

See the [SPARQL page](sparql.md) for example queries.