Hub

The record gathering everything said about a single work.

An abstract resource that functions as a bridge between two Works

BIBFRAME's definition of bf:Hub. The primer has a section on it.

Example

{
  "@id": "https://bibframe.example/hubs/62a26d82",
  "@type": [
    "Work",
    "Hub"
  ],
  "title": [
    {
      "@type": [
        "Title"
      ],
      "mainTitle": [
        "Chŏngch'aek yŏn'gu sirijŭ"
      ]
    }
  ]
}

Trimmed from a real record rather than written for the occasion, and checked against this definition by tests/test_examples.py. A wrong example is worse than none, because it is the first thing anyone copies.

Properties

Property	Takes	What BIBFRAME says it is
rdfs:label	Text	defined by RDF Schema
title	Title	Name given to a resource. (Title resource)
note	Ref	General textual information relating to a resource, such as Information about a specific copy of a resource or information about a particular attribute of a resource.
subject	Ref	Subject term(s) describing a resource.
identifiedBy	Identifier	Character string associated with a resource that serves to differentiate that resource from other resources, i.e., that uniquely identifies an entity. (Identifier)
adminMetadata	AdminMetadata	Metadata about the metadata, especially provenance information. (Administrative metadata)
contribution	Contribution	Agent and its role in relation to the resource (Contributor and role)
classification	Classification	Classification number in any scheme.
language	Ref	Language associated with a resource or its parts. (Language information)
genreForm	Ref	Form category or genre to which a resource belongs
provisionActivity	ProvisionActivity	Place, name, and/or date information relating to the publication, printing, distribution, issue, release, production, etc. of a resource.
relation	Relation	Associated resource and its relationship to the resource being described
seriesStatement	Text	Statement of the series the resource is in; usually transcribed; includes the ISSN if applicable.
electronicLocator	Ref	Electronic location from which the resource is available. (Electronic location)
bflc:aap	Text	defined by the BIBFRAME LC extension
expressionOf	Ref	Work or Hub that the described Work or Hub is an expression of; used to connect Works and/or Hubs under LRM/RDA guidelines or similar implementations
hasExpression	Ref	Work or Hub that is an expression of a described Work or Hub; used to relate Works and/or Hubs under LRM/RDA guidelines or similar implementations (Expressed as)

Every property here holds an array, and a property this definition does not name is still checked: it must be an array too. Naming a property buys a check on what its values look like, and nothing else.

The schema

https://bibframe-json.org/schema/linked/Hub.json is this definition on its own, and https://bibframe-json.org/schema/linked.json is the whole shape with every definition inlined. They are checked against each other over the conformance corpus, so either is safe to depend on.