pildisid

Pildisid is a term used in Estonian-language discussions of digital image management to refer to unique identifiers assigned to images within a repository or dataset. The word combines pilt (image) with sid (to bind or link), producing a noun that denotes image identifiers or image links. It is not an official international standard, but it appears in technical writing to describe the mechanism that ties an image to its metadata and records.

Purpose and concept

Pildisid serve as stable references to images, enabling precise tracking of provenance, version control, deduplication, and interoperability between systems. They are intended to remain constant even when the image file is renamed, moved, or reformatted, making them more reliable than file paths for long-term data management.

Form and implementation

Pildisid can take various forms, including numeric codes, alphanumeric strings, or UUID-like identifiers. In practice, they are stored in dedicated metadata fields or used as the primary key in image databases. They function as a persistent key that can be used across databases, APIs, and content-management workflows.

Relationship to other identifiers

Pildisid are typically distinct from file names or URLs. While a file name may change, a pildisid remains the anchor that links to metadata such as capture date, photographer, rights, and licensing. They often enable cross-platform linking, data exchange, and reproducible research in AI training datasets.

Examples and use cases

Common use cases include digital asset management systems, museum archives, news agencies, and large language model or computer vision datasets where consistent image identification is essential for data integrity and provenance.

See also

Metadata, digital asset management, UUID, persistent identifiers, image tagging.