Publications and other resources related to the dataset you are uploading can be identified using a unique code. The types of identifiers and their descriptions are given in the table below.
| Unique ID Types | Descriptions |
|---|---|
| ARK | Archival Resource Key URL designed to support long-term access to information objects. |
| arXiv | arXiv identifier arXiv.org is a repository of preprints of scientific papers in the fields of mathematics, physics, astronomy, computer science, quantitative biology, statistics, and quantitative finance. |
| bibcode | Astrophysics Data System bibliographic codes; a standardized 19 character identifier according to the syntax yyyyjjjjjvvvvmppppa. |
| DOI | Digital Object Identifier; a character string used to uniquely identify an object. A DOI name is divided into two parts, a prefix and a suffix, separated by a slash. |
| EAN13 | European Article Number, now renamed International Article Number, but retaining the original acronym, is a 13-digit barcoding standard which is a superset of the original 12-digit Universal Product Code (UPC) system. |
| EISSN | Electronic International Standard Serial Number; ISSN used to identify periodicals in electronic form (eISSN or e- ISSN). |
| Handle | A handle is an abstract reference to a resource. |
| IGSN | International Geo Sample Number; a 9-digit alphanumeric code that uniquely identifies samples from our natural environment and related sampling features. |
| ISBN | International Standard Book Number; a unique numeric book identifier. There are 2 formats: a 10-digit ISBN format and a 13-digit ISBN. |
| ISSN | International Standard Serial Number; a unique 8-digit number used to identify a print or electronic periodical publication. |
| ISTC | International Standard Text Code; a unique “number” assigned to a textual work. An ISTC consists of 16 numbers and/or letters. |
| LISSN | The linking ISSN or ISSN-L enables collocation or linking among different media versions of a continuing resource. |
| LSID | Life Science Identifiers; a unique identifier for data in the Life Science domain. |
| PMID | PubMed identifier; a unique number assigned to each PubMed record. |
| PURL | Persistent Uniform Resource Locator. A PURL has three parts: (1) a protocol, (2) a resolver address, and (3) a name. |
| UPC | Universal Product Code is a barcode symbology used for tracking trade items in stores. Its most common form, the UPC-A, consists of 12 numerical digits. |
| URL | Uniform Resource Locator, also known as web address, is a specific character string that constitutes a reference to a resource. |
| URN | Uniform Resource Name; is a unique and persistent identifier of an electronic document. |
| w3id | Permanent identifier for Web applications. Mostly used to publish vocabularies and ontologies. The letters 'w3' stand for "World Wide Web". |