Type of publication identifier or the organization or system that defined the identifier.
This attribute is used in two contexts:
Best Practice: The type of identifier should be named for established types (DOIs, SICIs, and Codens). If the identifier is not of an established type, name the assigning agency (PMC, OCLC) or type of assigning agency (aggregator, archive, indexing service, publisher) which assigned the identifier.
| Value | Meaning |
|---|---|
| art-access-id | Generic article accession identifier for interchange and retrieval between archives. |
| arxiv | arXiv archive of electronic preprints. |
| coden | Obsolete PDB/CCDC identifier (may be present on older articles). |
| doaj | Directory of Open Access Journals. |
| doi | Digital Object Identifier. |
| isbn | International Standard Book Number. |
| manuscript | Identifier assigned to a manuscript. |
| medline | NLM Medline identifier. |
| other | None of the named identifiers. |
| pii | The original “Publisher Item Identifier” (PII) was a system to provide unique and concise identification for individual published documents with a highly specified string. The PII is no longer in common use (2010). |
| pmcid | PubMed Central identifier. |
| pmid | PubMed ID; see http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed. |
| publisher-id | Publisher’s identifier, such as an “article-id”, “artnum”, “identifier”, “article-number”, “pub-id”, etc. |
| sici | Serial Item and Contribution Identifier (An ANSI/NISO Z39.56 code to uniquely identify volumes, articles, or other parts of a periodical. A journal article may have more than one SICI, for example, one for a print version and another for an electronic version.). |
| std-designation | The official number of a standard, from a standards body such as ISO, NISO, IEEE, ASME, et al., for example, “Z39.96-2012”. |
| Restriction: | |
| Value | Meaning |
|---|---|
| Text, numbers, or special characters | The type of identifier “doi”or name or type of organization that created the identifier “pmcid” (PubMed Central identifier). |
| Restriction: | |
Values for this attribute might include:
archive | Identifier assigned by an archive or other repository (generally used with elements <object-id>, <issue-id>, and <volume-id>) |
art-access-id | Generic article accession identifier for interchange and retrieval between archives |
aggregator | Identifier assigned by a data aggregator (generally used with elements <object-id>, <issue-id>, and <volume-id>) |
coden | Obsolete PDB/CCDC identifier (may be present on older articles) |
doaj | Directory of Open Access Journals |
doi | Digital Object Identifier |
index | Identifier assigned by an abstracting or indexing service (generally used with elements <object-id>, <issue-id>, and <volume-id>) |
isbn | International Standard Book Number |
manuscript | Identifier assigned to a manuscript |
pmcid | PubMed Central identifier |
pmid | PubMed ID; see http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed |
publisher-id | Publisher’s identifier, such as an “article-id”, “artnum”, “identifier”, “article-number”, “pub-id”, etc. |
sici | Serial Item and Contribution Identifier (An ANSI/NISO Z39.56 code to uniquely identify volumes, articles, or other parts of a periodical. A journal article may have more than one SICI, for example, one for a print version and another for an electronic version.) |