---
id: meta-glossary
title: Glossary
slug: /meta/glossary
---

Quick definitions for recurring terms across the BlackRoad OS stack.

- **PS-SHA∞** — global identity anchor used to bind humans, agents, and assets to verifiable worldlines.
- **RoadChain** — hash-linked journal of events and blocks that provides tamper-evident history.
- **DomainEvent** — canonical event emitted by Operator when jobs or agents change state.
- **Journal Entry** — persisted record of a DomainEvent, ready to be sealed into a RoadChain block.
- **Agent** — worker that executes jobs inside Operator; identified by PS-SHA∞ anchor and surfaced through API/Prism.
- **Job** — unit of work assigned to an agent with lifecycle states (queued, running, succeeded, failed, cancelled).
- **Atlas** — ops-aware agent focused on running and debugging the OS.
- **Prism Console** — operator UI for system overview, agents, finance, and events.
- **Season** — architecture phase used to coordinate goals across repositories.
- **Operator** — runtime (`blackroad-os-operator`) that hosts agents, manages jobs, and emits events.
- **API** — HTTP surface (`blackroad-os-api`) that exposes system data to Prism, web, and partners.
- **Core** — shared domain models and helpers in `blackroad-os-core`.