20 January 2026 The OntoChangelog ontology provides a clear history of every change, acting as a digital paper trail that records who made a change, when it occurred, and a description of the action. 1 c0599beca8df55873a1ab061dee64e52c510c6a0 A relationship that defines the specific object, record, or piece of data that was changed during the activity. affected A relationship that defines the individual or automated system responsible for triggering the activity. was performed by A property to store the precise date and time when the activity was completed. timestamp A specific event or process where a change occurs. Activity