Geoscience Australia (GA) is a government organisation in charge of geophysical and spatial data. It maintains a large catalogue of public, scientific, datasets online at [http://ecat.ga.gov.au/geonetwork/](http://ecat.ga.gov.au/geonetwork/). The catalogue is implemented using the [GeoNetwork](https://geonetwork-opensource.org/) tool which is an online, document database system. Records are all stored according to the [ISO's 19115-1:2014 metadata standard](https://www.iso.org/standard/53798.html). In addition to utilising that standard, GA has extended it with it's [own profile](http://pid.geoscience.gov.au/def/schema/ga/ISO19115-1-2014) which, among other things, implements code list extensions. The code list relevant to this implementation is the *DS_AssociationTypeCode* codelist which defines how a catalogued resource is related to another catalogued resource or an esternal resource indicated by a hyperlink. The GA extensions include types taken directly from PROV, such as *wasDerivedFrom*, *hadDerivation*, *wasGeneratedBy*, *generated*, *wasInformedBy* and *informed*. This allows resources associated with other resources with the type indicated by these codes to be interpreted as PROV, for example:
Dataset 82033 was derived from Dataset 70908.
In the catalogue's ISO19115-1:2014, Geoscience Australia profile, XML record for Dataset 82033, using the code list extension for *wasDerivedFrom*, this is:
<pre>
<code>
<mri:associatedResource>
<mri:MD_AssociatedResource>
<mri:name>
<cit:CI_Citation>
<cit:title>
<gco:CharacterString>International Best Track Archive for Climate Stewardship</gco:CharacterString>
</cit:title>
<cit:identifier>
<mcc:MD_Identifier>
<mcc:code>
<gco:CharacterString>70908</gco:CharacterString>
</mcc:code>
<mcc:description>
<gco:CharacterString>eCat Identifier</gco:CharacterString>
</mcc:description>
</mcc:MD_Identifier>
</cit:identifier>
<cit:onlineResource>
<cit:CI_OnlineResource>
<cit:linkage>
<gco:CharacterString> http://pid.geoscience.gov.au/dataset/70908</gco:CharacterString>
</cit:linkage>
<cit:protocol>
<gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
</cit:protocol>
<cit:description>
<gco:CharacterString>Link to eCat metadata record landing page</gco:CharacterString>
</cit:description>
<cit:function>
<cit:CI_OnLineFunctionCode codeList="codeListLocation#CI_OnLineFunctionCode" codeListValue="completeMetadata" />
</cit:function>
</cit:CI_OnlineResource>
</cit:onlineResource>
</cit:CI_Citation>
</mri:name>
<mri:associationType>
<mri:DS_AssociationTypeCode codeList="codeListLocation#DS_AssociationTypeCode" codeListValue="<strong>wasDerivedFrom</strong>" />
</mri:associationType>
</mri:MD_AssociatedResource>
</mri:associatedResource> </code>
</pre>
Using the persistent URIs for the datasets 82033 & 70908 which are <http://pid.geoscience.gov.au/dataset/ga/82033> & <http://pid.geoscience.gov.au/dataset/ga/70908> respectively, this can be interpreted as the [RDF](https://en.wikipedia.org/wiki/Resource_Description_Framework) triple, using the [PROV ontology](https://www.w3.org/TR/prov-o/) as:
<code><pre><http://pid.geoscience.gov.au/dataset/ga/82033> prov:wasDerivedFrom <http://pid.geoscience.gov.au/dataset/ga/70908> .</pre></code>
Links to the online implementation of this for Dataset 82033 and another dataset, 113621, are given below.