Hi Alec and James,
I do not think there is a problem since change from 3.0.3 to 4.3.0 CrossRef schema. I feel there is something wrong already in the XML generated by OJS for the 3.0.3 schema.
If I go to the Simple text query http://www.crossref.org/SimpleTextQuery/
and I put this info for one of our items deposited in September 2009
S. A. Sartarelli, L. Szybisz, Correlation between asymmetric profiles in slits and standard prewetting lines, Pap. Phys. 1, 010001 (2009)
I do not obtain the corresponding DOI, which is http://dx.doi.org/10.4279/PIP.010001
I have tried some other ways of writing the reference in the Simple text query but was unsuccessful.
The XML corresponding to this item, which I have deposited in September 2009 (generated by OJS under schema 3.0.3) is the following
<?xml version="1.0" encoding="UTF-8"?>
<doi_batch xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.crossref.org/schema/3.0.3" version="3.0.3" xsi:schemaLocation="http://www.crossref.org/schema/3.0.3 http://www.crossref.org/schema/3.0.3/crossref3.0.3.xsd
"><head><doi_batch_id>PIP_1252663219</doi_batch_id><timestamp>1252663219</timestamp><depositor><name>Luis A. Pugnaloni</name><email_address>email@example.com</email_address></depositor><registrant>Papers in Physics</registrant></head><body><journal><journal_metadata><full_title>Papers in Physics</full_title><abbrev_title>Pap. Phys.</abbrev_title><issn media_type="electronic">1852-4249</issn></journal_metadata><journal_issue><publication_date media_type="online"><month>09</month><day>10</day><year>2009</year></publication_date><journal_volume><volume>1</volume></journal_volume><issue>0</issue></journal_issue><journal_article publication_type="full_text"><titles><title>Correlation between asymmetric profiles in slits and standard prewetting lines</title></titles><contributors><person_name contributor_role="author" sequence="additional"><given_name>Salvador A.</given_name><surname>Sartarelli</surname></person_name><person_name contributor_role="author" sequence="first"><given_name>Leszek</given_name><surname>Szybisz</surname></person_name></contributors><publication_date media_type="online"><month>09</month><day>10</day><year>2009</year></publication_date><publisher_item><item_number>010001</item_number></publisher_item><doi_data><doi>10.4279/pip.010001</doi><resource>http://www.papersinphysics.org/index.php/papersinphysics/article/view/7</resource></doi_data></journal_article></journal></body></doi_batch>
I had a look at one other journal that use OJS and deposits DOIs in CrossRef. I did not manage to get the corresponding DOI for an item I saw in their page. However, non-OJS journals do not present this problem. I think many, if not all OJS journals depositing DOIs may be missing crosslinking from other journals in CrossRef because of this. Each time they query the system the DOI does not come back and the item misses a link.
BTW, in OJS, each time one accesses an Abstract page for an article, the page title includes the journal name, journal volume, and year. But not page numbers for that article are included. This prevent the reader from an easy way of knowing the full reference.
More IT knowledgeable chaps will use the reading tools and so look into the "how to cite" section. Unfortunately, the full correct reference is not created at least for the BibTex format where the article pages are not included.
I might be missing something in how to setup OJS to do all this right and so the article page numbers do not appear in all places one should expect them to appear (i.e. XML for CrossRef, page title in the abstract of articles, and "how to cite" reading tools). However, when I look fellow OJS journals the same seems to happens to all of them.
I am truly worried about this issue. Please, do consider this with some priority.