Forcing prime/alias

Publishers can force a DOI to be an alias of another DOI if the DOIs are not in conflict. 

Extreme care MUST be taken when using this feature. Normally two DOIs are put into a prime/alias pair when their metadata is the same and a conflict is created. In this case a metadata query will find both DOIs but because of the forced aliasing will return the prime DOI. If an aliased DOI has very different metadata than a primary DOI, the result may be a false positive to the query caller.

To force an alias between two DOIs, create a text file as described below and upload to the Crossref System:

1. Create the .txt file with tab-separated pairs of DOIs as follows:

   H:email=youremail@address.com;op=force_alias;delim=tab
10.xxxx/primary1 10.xxxx/alias1
10.xxxx/primary2 10.xxxx/alias2
10.xxxx/primary3 10.xxxx/alias3

2. Log in to the Crossref system.
3. Click the Submissions tab.
4. Click the Upload tab, if necessary.
5. Next to FileName, select Choose File
6. Locate and select the force alias file.
7. Select Type Conflict Management.
8. Click Upload.

Removing a forced prime and/or alias

Only DOIs that have been aliased need to be un-aliased. Supplying op=unalias allows you to unalias previously forced aliases.

H:email=youremail@address.com;op=unalias;delim=tab
10.xxxx/alias1
10.xxxx/alias2
10.xxxx/alias3