pbcoreExtension is an extension element. Extensions are either a wrapper containing a specific element from another standard OR embedded xml containing the extension.

Best practice: Use it to supplement other metadata sub-elements of the PBCore description document in which it appears

pbcoreExtension can be contained by the elements pbcoreDescriptionDocument or pbcorePart.

Usage: optional, repeatable.

Attributes

pbcoreExtension has no attributes.

Subelements

instantiationExtension contains the following subelements:

extensionWrap – required ONLY if extensionEmbedded is not used. The extensionWrap serves as a container for the elements extensionElement, extensionValue, and extensionAuthorityUsed..
extensionEmbedded – required ONLY if extensionWrap is not used. The extensionEmbedded element allows the inclusion of xml from another schema, e.g. TEI, METS, etc.

Examples

<pbcoreExtension>
<!-- No data here directly; it's within sub-elements instead -->
     <extensionWrap>
          <extensionElement>RightsHolderName</extensionElement>
          <extensionValue>WNET.org</extensionValue>
          <extensionAuthorityUsed>http://www.loc.gov/standards/rights/METSRights.xsd</extensionAuthorityUsed>
     </extensionWrap>   
</pbcoreExtension>

<extensionElement>RightsHolderName</extensionElement>

<extensionAuthorityUsed>http://www.loc.gov/standards/rights/METSRights.xsd</extensionAuthorityUsed>

</extensionWrap>

</pbcoreExtension>

Submit any issues or suggested changes for future schema iterations by creating a ticket in our Github repository.