Technical Specification

A W3C protocol for decentralized social networking, enabling server-to-server federation across the fediverse.

Transforms scholarly content into self-describing, machine-actionable linked documents using HTML and JSON-LD.

A file packaging convention using manifests and checksums for reliable digital content transfer.

An XML tag suite extending JATS to encode the full text and metadata of scientific books.

Tamper-evident content credentials that certify the provenance and edit history of digital media.

A YAML file format that lets developers embed citation metadata directly in code repositories.

An open XML-based language for defining citation and bibliography formatting rules used by reference managers worldwide.

Metadata conventions that give NetCDF climate and geoscience variables well-defined meaning.

A human-readable query language for information retrieval systems, used with SRU and library search protocols.

The international standard for measuring and comparing usage statistics of electronic resources.

A metadata format for describing, discovering, and programmatically loading machine learning datasets.

A W3C standard for annotating CSV files with datatypes, relationships, and conversion rules.

Lightweight JSON-based specifications for packaging, describing, and validating tabular datasets.

Lets metadata designers define application profiles as simple CSV tables with shapes and constraints.

The dominant open format for reflowable digital books, packaging HTML, CSS, and media in one file.

Embeds camera settings, GPS coordinates, and timestamps directly inside image and audio files.

Tracks learning experiences across platforms using simple actor-verb-object statements sent to a record store.

A syntax for expressing dates with uncertainty, approximation, and ranges beyond ISO 8601.

An ISO standard for embedding RDF-based metadata directly inside media files during content creation.

A resource-based framework for exchanging clinical and administrative healthcare data over the web.

A distributed system for assigning and resolving persistent identifiers for digital objects on the internet.

The de facto tagging standard for embedding title, artist, and album metadata inside MP3 files.

Open APIs for delivering, annotating, and sharing high-quality digital images across institutions.

An XML tag set for marking up the full text and metadata of scholarly journal articles.

Embeds linked data semantics in ordinary JSON using a lightweight context mechanism.