Activity Content - User-generated social networking content in a JSON format defined by the Activity Streams 2.0 specification with DSNP extensions. Some DSNP Announcements contain the URL and hash for an Activity Content document.
Announcement - Content, or references to content, that communicate user activity to the network.
Application - A computer program that helps a User interact with a DSNP system
Batch Publication - A collection of Announcements bundled together into a single file using the Parquet format
Consumer - An application or user who reads content from a DSNP system
DSNP System - A consensus system (and its surrounding services) that enables DSNP operations and generates DSNP state change records
Hash - A string of bytes generated from a hash function, a cryptographic function whose output is effectively unique for any given input without any information from the input being accessible in the output