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Crossref DOI Deposit
https://www.crossref.org/documentation/schema-library/
Automated Crossref DOI Deposit is available via the Thoth Dissemination Service.
Crossmark is a service offered by Crossref to allow readers to find out if changes have been made to a research output, such as corrections, retractions, or updates.
Publishers who are already Crossref members can participate for free in Crossmark. Thoth supports Crossmark as part of Crossref DOI Deposit metadata export using the Export API.
Publishers who join Thoth Plus have free Crossref membership included, as well as automated DOI registration with Crossref, including updates to the DOI with all changes to metadata in Thoth. Thoth Free publishers can export updated xml using the Thoth Export API, and register Crossmark updates with Crossref directly.
In order to participate in Crossmark, publishers must first create an update policy page on their website, and assign it a DOI. More details from Crossref can be found here.
After completing this step, add the DOI to the relevant Publisher Imprint’s record in Thoth under the Crossmark DOI field. All Crossref DOI Deposit exports using the Thoth Export API will now include Crossmark metadata to indicate the publishers’ participation in Crossmark, whether or not a given Work has specific update metadata. Below is an excerpt from a Crossref DOI Deposit XML output, containing Crossmark metadata for a Work with no relevant updates:
<crossmark>
<crossmark_version>2</crossmark_version>
<crossmark_policy>10.1111/hex.12487</crossmark_policy>
Thoth currently supports two kinds of Crossmark updates: new edition, for Works that replace an older edition, and withdrawal, for Works that are withdrawn and no longer available from the publisher.
In order to export new edition metadata, both the old edition and the new edition must have records in Thoth. The old edition and new edition must be linked to each other as Related Works in Thoth, using the Replaces/Is Replaced By relationship:
- 2nd edition: Replaces 1st edition
- 1st edition: Is Replaced By 2nd edition
It is not necessary to define this relationship separately for both Works, as Thoth will assign the relevant, inverse relationship to the Related Work. The relationship can be defined in the record for either the old edition or new edition, and Thoth will update the other Related Work automatically.
In addition, the old edition must have a Work Status of Withdrawn, and a Withdrawn Date.
When these steps are completed, the Crossref DOI deposit XML output for the New Edition will contain:
<crossmark>
<crossmark_version>2</crossmark_version>
<crossmark_policy>10.1111/hex.12487</crossmark_policy>
<updates>
<update type="new_edition" date="2024-03-05">10.11647/obp.0300</update>
</updates>
Note that the DOI included in the update metadata for the New Edition is the DOI of the old edition of the Work that Is Replaced By the New Edition of the Work, not the DOI of the New Edition itself, which is contained elsewhere in the metadata.
Sometimes, Works may be Withdrawn from publication, without the publication of a new edition. In this case, simply mark the Work as Withdrawn and set a Withdrawn Date, as in the directions above. The Crossmark metadata for the Withdrawn work will appear as below:
<crossmark>
<crossmark_version>2</crossmark_version>
<crossmark_policy>10.1111/hex.12487</crossmark_policy>
<updates>
<update type="withdrawal" date="2024-12-12">10.11647/obp.0300</update>
</updates>
In this case, the DOI included the Crossmark metadata will be the DOI of the Withdrawn Work itself.
The Thoth Wiki has been developed in the context of the COPIM (Community-led Open Publication Infrastructures for Monographs) project. Individual contributions to the wiki have been made by Tim Elfenbein, Rupert Gatti, Ross Higman, Brendan O'Connell, Vincent W.J. van Gerven Oei, Tobias Steiner and Hannah Hillen under the general editorship of Van Gerven Oei. All data are available under a CC-BY 4.0 license.