Infrastructure · Data Structures

Event

Discrete temporal occurrence

Definition

Mechanism

A discrete occurrence involving a change in State at a specific point in time. Events are the atomic units of causality and history, distinct from continuous Streams.

Invariants

None stated.

Risks

Failure modes

None stated.

Relationships

Builds on

References

State

System condition at time T

Used by

References

Reference

Data schema

{
  "type": "object",
  "required": [
    "event_id",
    "timestamp",
    "type"
  ],
  "properties": {
    "event_id": {
      "type": "string",
      "description": "Unique identifier"
    },
    "type": {
      "type": "string",
      "description": "Event classification"
    },
    "payload": {
      "type": "object",
      "description": "Data associated with the occurrence"
    },
    "timestamp": {
      "type": "string",
      "format": "date-time"
    }
  }
}

Identity

Ref
Event#3675
Sema ID
sema:Event#mh:SHA-256:36757bd8344e1fd7161bd2f23d6588180fbaaf9cff5ef8be8a205effbf4438b6
Ring
0
Tier
1
Updated
2026-11-11
Supersedes
  • sema:Event#mh:SHA-256:035497ae50cbbc61e245e1116f6e9b4a6e3c73aa41252052e8dd74a4dde35b96