Linked Web Storage Vocabulary W3C Group Note Draft 14 July 2026 More details about this document This version: https://www.w3.org/TR/2026/DNOTE-lws10-vocab-20260714/ Latest published version: https://www.w3.org/TR/lws10-vocab/ Latest editor's draft: https://w3c.github.io/lws-protocol/lws10-vocab/ History: https://www.w3.org/standards/history/lws10-vocab/ Commit history Editors: Jesse Wright ( University of Oxford ) Erich Bremer ( Stony Brook University ) Author: Laurens Debackere ( Digitaal Vlaanderen ) Feedback: GitHub w3c/lws-protocol ( pull requests , new issue , open issues ) Copyright © 2026 World Wide Web Consortium . W3C ® liability , trademark and permissive document license rules apply. Abstract This document describes the Linked Web Storage Vocabulary , i.e., the RDFS [ RDF-SCHEMA ] vocabulary used by the Linked Web Storage Protocol [ lws-core ] . Alternate versions of the vocabulary definition exist in Turtle and JSON-LD . Published: 2026-07-14 Version Info: 1.0 See Also: https://www.w3.org/TR/lws-protocol/ Status of This Document This section describes the status of this document at the time of its publication. A list of current W3C publications and the latest revision of this technical report can be found in the W3C standards and drafts index . This vocabulary has been defined by the W3C Linked Web Storage Working Group and provides the official RDFS vocabulary for the Linked Web Storage Protocol . Comments regarding this document are welcome. Please file issues directly on GitHub . This document was published by the Linked Web Storage Working Group as a Group Note Draft using the Note track . Group Note Drafts are not endorsed by W3C nor its Members. This is a draft document and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to cite this document as other than a work in progress. The W3C Patent Policy does not carry any licensing requirements or commitments on this document. This document is governed by the 18 August 2025 W3C Process Document . Table of Contents Abstract Status of This Document 1. Conformance 2. Namespaces 3. @context files 4. Term definitions 4.1 Property definitions 4.1.1 items 4.1.2 totalItems 4.1.3 mediaType 4.1.4 updated 4.1.5 size 4.1.6 capability 4.1.7 service 4.1.8 serviceEndpoint 4.1.9 storageDescription 4.1.10 PreferLinkRelations 4.1.11 subscriptionType 4.1.12 subscription 4.1.13 activity 4.1.14 topic 4.1.15 storage 4.1.16 Create 4.1.17 Update 4.1.18 Delete 4.1.19 object 4.1.20 actor 4.1.21 target 4.1.22 origin 4.1.23 published 4.1.24 verificationMethod 4.1.25 authentication 4.1.26 controller 4.1.27 publicKeyJwk 4.1.28 inbox 4.1.29 expires 4.2 Class definitions 4.2.1 Container 4.2.2 DataResource 4.2.3 Storage 4.2.4 StorageDescription 4.2.5 OpenIdProvider 4.2.6 Notification 4.2.7 NotificationService 4.2.8 WebhookSubscription A. References A.1 Informative references 1. Conformance As well as sections marked as non-normative, all authoring guidelines, diagrams, examples, and notes in this specification are non-normative. Everything else in this specification is normative. 2. Namespaces This specification makes use of the following namespaces: lws https://www.w3.org/ns/lws# as https://www.w3.org/ns/activitystreams# schema http://schema.org/ sec https://w3id.org/security# ldp http://www.w3.org/ns/ldp# dc http://purl.org/dc/terms/ owl http://www.w3.org/2002/07/owl# rdf http://www.w3.org/1999/02/22-rdf-syntax-ns# rdfs http://www.w3.org/2000/01/rdf-schema# xsd http://www.w3.org/2001/XMLSchema# 3. @context files The following @context files make use of the terms defined in this specification: https://www.w3.org/ns/lws/v1 term list Create Delete Update actor mediaType object origin published target totalItems updated inbox Container DataResource Notification NotificationService OpenIdProvider PreferLinkRelations Storage StorageDescription WebhookSubscription activity capability items service serviceEndpoint storage storageDescription subscription subscriptionType topic expires size authentication controller publicKeyJwk verificationMethod 4. Term definitions 4.1 Property definitions The following are property definitions in the lws namespace. 4.1.1 items items The list of resources contained in a container. Domain: Container Relevant @context : https://www.w3.org/ns/lws/v1 4.1.2 totalItems total items The total number of items in a container. Note This term is formally defined in another vocabulary (as as:totalItems ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.3 mediaType media type The media type of a data resource. Note This term is formally defined in another vocabulary (as as:mediaType ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.4 updated modified The date and time the resource was last modified. Note This term is formally defined in another vocabulary (as as:updated ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.5 size size The size of the resource in bytes. Note This term is formally defined in another vocabulary (as schema:size ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.6 capability capability A capability supported by the storage. Domain: Storage Relevant @context : https://www.w3.org/ns/lws/v1 4.1.7 service service A service associated with the storage. Domain: Storage Relevant @context : https://www.w3.org/ns/lws/v1 4.1.8 serviceEndpoint service endpoint The URI of a service endpoint. Range: xsd:anyURI Relevant @context : https://www.w3.org/ns/lws/v1 4.1.9 storageDescription storage description Link relation pointing to a storage description resource. Range: xsd:anyURI Relevant @context : https://www.w3.org/ns/lws/v1 4.1.10 PreferLinkRelations Prefer Link Relations A preference URI for including or omitting specific link relations in responses. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.11 subscriptionType subscription type See the formal definition of the term . The subscription types supported by a notification service. Domain: NotificationService Relevant @context : https://www.w3.org/ns/lws/v1 4.1.12 subscription subscription See the formal definition of the term . The URL of the subscription resource or connection endpoint. Range: xsd:anyURI Relevant @context : https://www.w3.org/ns/lws/v1 4.1.13 activity activity See the formal definition of the term . The Activity Streams 2.0 activity payload within a notification. Domain: Notification Relevant @context : https://www.w3.org/ns/lws/v1 4.1.14 topic topic See the formal definition of the term . An array of resource URIs covered by a subscription. Range: xsd:anyURI Relevant @context : https://www.w3.org/ns/lws/v1 4.1.15 storage storage See the formal definition of the term . The URI identifying the LWS storage that emitted the notification. Range: xsd:anyURI Relevant @context : https://www.w3.org/ns/lws/v1 4.1.16 Create Create An activity representing the creation of a resource. Note This term is formally defined in another vocabulary (as as:Create ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.17 Update Update An activity representing the update of a resource. Note This term is formally defined in another vocabulary (as as:Update ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.18 Delete Delete An activity representing the deletion of a resource. Note This term is formally defined in another vocabulary (as as:Delete ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.19 object object The primary object of an activity. Note This term is formally defined in another vocabulary (as as:object ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.20 actor actor The agent that performed the activity. Note This term is formally defined in another vocabulary (as as:actor ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.21 target target The target of the activity. Note This term is formally defined in another vocabulary (as as:target ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.22 origin origin The origin of a Move activity. Note This term is formally defined in another vocabulary (as as:origin ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.23 published published The date and time the activity was published. Note This term is formally defined in another vocabulary (as as:published ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.24 verificationMethod verification method A verification method associated with a key or identity. Note This term is formally defined in another vocabulary (as sec:verificationMethod ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.25 authentication authentication An authentication method associated with an identity. Note This term is formally defined in another vocabulary (as sec:authentication ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.26 controller controller The entity that controls a verification method. Note This term is formally defined in another vocabulary (as sec:controller ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.27 publicKeyJwk public key JWK A public key expressed as a JSON Web Key. Note This term is formally defined in another vocabulary (as sec:publicKeyJwk ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.28 inbox inbox A URL to which notifications are delivered via HTTP POST. Note This term is formally defined in another vocabulary (as ldp:inbox ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.1.29 expires expires The date and time at which a subscription expires. Note This term is formally defined in another vocabulary (as schema:expires ), but is frequently used with this vocabulary and has been included to aid readability of this document. Relevant @context : https://www.w3.org/ns/lws/v1 4.2 Class definitions The following are class definitions in the lws namespace. 4.2.1 Container Container A resource that contains other resources. Domain of: items , totalItems Relevant @context : https://www.w3.org/ns/lws/v1 4.2.2 DataResource Data Resource A data-bearing resource such as a document, image, or structured data file. Domain of: mediaType , updated , size Relevant @context : https://www.w3.org/ns/lws/v1 4.2.3 Storage Storage A Linked Web Storage instance. Domain of: capability , service Relevant @context : https://www.w3.org/ns/lws/v1 4.2.4 StorageDescription Storage Description A service that provides a storage description resource. Relevant @context : https://www.w3.org/ns/lws/v1 4.2.5 OpenIdProvider OpenID Provider See the formal definition of the term . An OpenID Connect identity provider service. Relevant @context : https://www.w3.org/ns/lws/v1 4.2.6 Notification Notification See the formal definition of the term . A notification envelope describing an event that occurred on a resource. Domain of: activity Relevant @context : https://www.w3.org/ns/lws/v1 4.2.7 NotificationService Notification Service See the formal definition of the term . A service through which clients subscribe to resource change notifications. Domain of: subscriptionType Relevant @context : https://www.w3.org/ns/lws/v1 4.2.8 WebhookSubscription Webhook Subscription See the formal definition of the term . A subscription type that delivers notifications via HTTP POST to a subscriber-provided inbox URL. Relevant @context : https://www.w3.org/ns/lws/v1 A. References A.1 Informative references [lws-core] Linked Web Storage Protocol 1.0 . Jesse Wright; Erich Bremer. W3C. 22 June 2026. W3C Working Draft. URL: https://www.w3.org/TR/lws10-core/ [RDF-SCHEMA] RDF Schema 1.1 . Dan Brickley; Ramanathan Guha. W3C. 25 February 2014. W3C Recommendation. URL: https://www.w3.org/TR/rdf-schema/ ↑