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Removing metadata from a record

All Crossref metadata may be updated by re-supplying your metadata record with changes included.  A metadata record may not be fully deleted but you may need to remove certain types of non-bibliographic metadata from a record.  This may be necessary if metadata was submitted by mistake, or when content migrates from one member to another.  Some metadata provided for text and data mining or Similarity Check are publisher-specific and must be updated or removed when content is acquired by another member.

When a record is updated with bibliographic metadata, registered non-bibliographic metadata is retained as part of the metadata record unless we are explicitly instructed to remove it.  Metadata that needs to be explicitly deleted includes:

This metadata may be deleted by supplying an empty parent element as per the examples below, and may be included in a metadata update or submitted as a resource deposit. Note that metadata submitted as part of a Crossmark update needs to be removed within Crossmark metadata as per the examples below.

Remove all Crossmark data 

Remove all Crossmark data from a record by supplying an empty Crossmark element in a metadata deposit:

....
  <first_page>1</first_page>
  <last_page>3</last_page>
</pages>
<crossmark/>
<doi_data>
   <doi>10.5555/12345678</doi>
   <resource>http://psychoceramics.labs.crossref.org/10.5555-12345678.html</resource>
</doi_data>
...

 or as part of a resource deposit:

<crossmark_data>
  <doi>10.5555/12345678</doi>
  <crossmark/>
</crossmark_data> 

Remove funding, clinical trial, or license data from Crossmark

Funding, license, and clinical trial data may all be supplied as part of a Crossmark update.  If you need to remove funding, license, or clinical trail metadata from your Crossmark metadata, you must submit the appropriate empty element within a Crossmark update. Note the other Crossmark metadata must be present as well to be retained.

In this example, funding data is removed from a Crossmark update:

<crossmark>
  <crossmark_version>1</crossmark_version>
  <crossmark_policy>10.5555/crossmark_policy</crossmark_policy>
  <crossmark_domains>
    <crossmark_domain>
      <domain>psychoceramics.labs.crossref.org</domain>
    </crossmark_domain>
  </crossmark_domains>
  <crossmark_domain_exclusive>true</crossmark_domain_exclusive>
  <custom_metadata>
    <assertion name="orcid" label="ORCID" group_name="identifiers" group_label="Identifiers" order="0" href="http://orcid.org/0000-0002-1825-0097">http://orcid.org/0000-0002-1825-0097</assertion>
    <assertion name="received" label="Received" group_name="publication_history" group_label="Publication History" order="0">2012-07-24</assertion>
    <assertion name="accepted" label="Accepted" group_name="publication_history" group_label="Publication History" order="1">2012-08-29</assertion>
    <assertion name="published" label="Published" group_name="publication_history" group_label="Publication History" order="2">2012-09-10</assertion>
    <program xmlns="http://www.crossref.org/fundref.xsd"/>
    <program xmlns="http://www.crossref.org/AccessIndicators.xsd"/>
    <program "http://www.crossref.org/clinicaltrials.xsd"/>
</custom_metadata>
</crossmark>

Funding data

Remove funding data from a non-Crossmark record by supplying an empty fundref program element in a metadata deposit:

....
  <first_page>1</first_page>
  <last_page>3</last_page>
</pages>
<program xmlns="http://www.crossref.org/fundref.xsd"/>
<doi_data>
   <doi>10.5555/12345678</doi>
   <resource>http://psychoceramics.labs.crossref.org/10.5555-12345678.html</resource>
</doi_data>
...

 or as part of a resource deposit:

<fundref_data>
  <doi>10.5555/12345678</doi>
 <program xmlns="http://www.crossref.org/fundref.xsd"/>
</fundref_data>

License data 

Remove license data from a non-Crossmark record by supplying an empty AccessIndicators program element in a metadata deposit:

....
  <first_page>1</first_page>
  <last_page>3</last_page>
</pages>
<program xmlns="http://www.crossref.org/AccessIndicators.xsd"/>
<doi_data>
   <doi>10.5555/12345678</doi>
   <resource>http://psychoceramics.labs.crossref.org/10.5555-12345678.html</resource>
</doi_data>
...

 or as part of a resource deposit:

<lic_ref_data>
  <doi>10.5555/12345678</doi>
 <program xmlns="http://www.crossref.org/AccessIndicators.xsd"/>
</lic_ref_data>

Relationship data 

Remove relationship data by supplying an empty relationship program element in a metadata deposit:

....
  <first_page>1</first_page>
  <last_page>3</last_page>
</pages>
<program xmlns="http://www.crossref.org/relations.xsd"/>
<doi_data>
   <doi>10.5555/12345678</doi>
   <resource>http://psychoceramics.labs.crossref.org/10.5555-12345678.html</resource>
</doi_data>
...

 or as part of a resource deposit:

<doi_relations>
  <doi>10.5555/12345678</doi>
 <program xmlns="http://www.crossref.org/relations.xsd"/>
</doi_relations>

Full-text, as-crawled, and Multiple Resolution URLs

Full text, as-crawled, and Multiple Resolution secondary URLs may be removed from a record by submitting an update containing an empty collection tag that includes the appropriate property:

  • Full text uses property "text-mining"
  • as-crawled URLs use the property "crawler-based"
  • Multiple Resolution secondary URLs use the property "list-based" 
  • The country-code resolution feature uses the property "country-based"

For example, to remove text and data mining URLs from a record submit the following as part of a metadata deposit:

....
<doi_data>
  <doi>10.5555/515151</doi>
  <resource>http://annalsofpsychoceramics.labs.crossref.org/abstract/515151/</resource>
  <collection property="text-mining"/>
</doi_data>
....

They may be included in a metadata deposit (above) or as part of a resource deposit:

<doi_resources>
  <doi>10.5555/515151</doi>
  <collection property="text-mining"/>
</doi_resources>

References

Remove a reference list from a record by supplying an empty citation_list element in a metadata deposit:

....
  <first_page>1</first_page>
  <last_page>3</last_page>
</pages>
<doi_data>
   <doi>10.5555/12345678</doi>
   <resource>http://psychoceramics.labs.crossref.org/10.5555-12345678.html</resource>
</doi_data>
<citation_list/>
...

 or as part of a resource deposit:

<doi_citations>
  <doi>10.5555/12345678</doi>
  <citation_list/>
</doi_citations>

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