Activity Streams is an open format specification for activity stream protocols, which are used to syndicate activities taken in social web applications and services, similar to those in Facebook's, Instagram's, and Twitter's. The standard provides a general way to represent activities.

Prefix
ac
Preferred Prefix
ac
Keywords
semantic web social media
Links
Homepage
Contact
Missing Contact
Pattern for Local Unique Identifiers
Missing LUI pattern
Example Local Unique Identifier
Add   Resolve
Example CURIE
ac:Add
References
GitHub PR https://github.com/biopragmatics/bioregistry/pull/1098
Contributors
Ontology

A summary of the relations in the Semantic Farm schema can be found here.

In Collection
Semantic Web Context
Metaregistry Activity Streams

The metaregistry provides mappings between the Semantic Farm and other registries. There are 1 mappings to external registries for this resource with 1 unique external prefixes.

Registry Name Registry Metaprefix External Prefix Curate
Wikidata (E) Wikidata Entity logo wikidata.entity Q4677626
Providers

A provider turns a local unique identifiers from a resource into a URI. Many providers are also resolvable as URLs (i.e., they can be used in a web browser).

The local unique identifier Add is used to demonstrate the providers available for Activity Streams. Some providers may use a different example, which is displayed in the table below. A guide for curating additional providers can be found here.

Name Metaprefix URI
Activity Streams ac http://www.w3.org/ns/activitystreams#Add
Bioregistry bioregistry https://bioregistry.io/ac:Add