Editing Identifier (section)

==Identifiers in various disciplines==
{{Main|:Category:Identifiers}}
{| class="wikitable"
|-
! Identifier !! Scope
|-
| [[atomic number]], corresponding one-to-one with [[List of chemical element name etymologies|element name]] || international (via [[International scientific vocabulary|ISV]])
|-
| [[Australian Business Number]] || Australian
|-
| [[Commercial and Government Entity|CAGE code]] || U.S. and [[NATO]]
|-
| [[CAS registry number]] || originated in U.S.; today international (via [[International scientific vocabulary|ISV]])
|-
| [[CODEN]] || originated in U.S.; today international
|-
| [[Digital object identifier]] (DOI, doi) || [[Handle System]] [[Namespace]], international scope
|-
| [[Deutsches Institut für Normung|DIN]] standard number || originated in Germany; today international
|-
| [[E number]] || originated in E.U.; may be seen internationally
|-
| [[Enzyme Commission number|EC number]] ||
|-
| [[Employer Identification Number]] (EIN) || U.S.
|-
| Electronic Identifier Serial Publicaction (EISP) || international
|-
| [[Global Trade Item Number]] || international
|-
| [[Group identifier]] || many scopes, e.g., specific computer systems
|-
| [[International Chemical Identifier]] || international
|-
| [[International Standard Book Number]] (ISBN) || ISBN is part of the [[International Article Number (EAN)|EAN]] [[Namespace]]; international scope
|-
| International eBook Identifier Number (IEIN) || international
|-
| [[International Standard Serial Number]] (ISSN) || international
|-
| [[International Organization for Standardization|ISO]] standard number, e.g., [[ISO 8601]] || international
|-
| [[Library of Congress Control Number]] || U.S., with some international bibliographic usefulness
|-
| [[Personal identification number (Denmark)]] || Denmark
|-
| [[Pharmaceutical code]] || Many different systems
|-
| Product batch number ||
|-
| [[Serial Item and Contribution Identifier]] || U.S., with some international bibliographic usefulness
|-
| [[Serial number]] ||  many scopes, e.g., company-specific, government-specific
|-
| Service batch number ||
|-
| [[Social Security Number]] || U.S.
|-
| [[Tax file number]] || Australian 
|-
| Unique Article Identifier (UAI) || international
|-
|}