202100123

202100123 is a numeric identifier used in information management to label and track individual records, items, or documents. The sequence typically follows a year-prefix pattern, with the leftmost digits indicating a calendar year and the trailing digits representing a zero-padded sequential number. In this case, 2021 is the year and 00123 is the sequence, yielding the unique item 202100123.

Common contexts include library and archival catalogs, where accession numbers uniquely identify physical or digital holdings within a collection; in manufacturing or procurement, similar numbers may label purchase orders, batch records, or control documents; in software and data management, such IDs can serve as record identifiers or version tags.

Metadata commonly associated with an item identified as 202100123 may include title or description, creator or author, date of creation, format, collection or repository, location, and current status. The number itself carries no inherent meaning beyond its role as a unique key within a system; its interpretation depends on the controlling institution's schema.

Because many organizations use year-based numbering, 202100123 may refer to different items in separate catalogs. To identify a specific instance, one should consult the relevant catalog entry or repository and examine accompanying metadata and context.

See also: accession number, serial number, cataloging, document control, versioning.