> ## Documentation Index
> Fetch the complete documentation index at: https://doc.blankstate.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# What is Blankstate

> The full picture in five minutes.

Blankstate reverses the order of a decision: experience the future before you commit to it.

Old world: commit, then find out. New world: experience it, then commit. A person does not simulate a future. They live it.

Anything you are weighing (a hire, an operating model, a policy, an agent) is staged as a live **World**: a physics-based, replayable environment. Real people dive in and act. The **SGM** sensor engine reads what unfolds. Worlds open the experience; the SGM reads it.

The output is a replayable, evidence-linked record. Through the API, a signed reading. Inside Atlas, a full-tenant view. On Stage & Dive (closed beta), a **StageCard**.

## The motion

Every Blankstate surface follows the same five steps.

1. **Stage.** Compose the situation: roles, framing, constraints, and the checkpoints that define completion.
2. **Dive.** A user enters the World and acts.
3. **Measure.** The SGM reads the interaction across cognitive, behavioural, and intentional axes.
4. **Replay.** Run the same World again, with different actors, framings, or variables.
5. **Commit.** Hire, deploy, ship, or sign, with the reading in hand.

<Frame caption="The motion. Stage → Dive → Measure → Replay → Commit.">
  <img src="https://mintcdn.com/blankstate/_qJUwEIy0R37Mjeb/images/site/wireframe-strip.webp?fit=max&auto=format&n=_qJUwEIy0R37Mjeb&q=85&s=b2048d88a02bf58cbc665fb8386d374f" alt="Wireframe landscape. The Stage & Dive motion." width="1600" height="893" data-path="images/site/wireframe-strip.webp" />
</Frame>

## Concepts

| Concept        | What it is                                                                                                                  |
| -------------- | --------------------------------------------------------------------------------------------------------------------------- |
| **World**      | The environment a Dive plays out in. Authored, physics-based, and replayable.                                               |
| **SGM**        | Spectral Geometric Manifold. The sensor engine beneath every World. Deterministic, universal, traceable, sub-millisecond.   |
| **Protocol**   | A projection onto the SGM's measurement space. Senses one thing: a competence, a compliance criterion, an intent alignment. |
| **Blueprint**  | A versioned, immutable collection of Protocols deployed as a unit.                                                          |
| **Metamarker** | One detected pattern inside a run. The atomic unit of evidence.                                                             |
| **ICS**        | Interaction Computed Signal. One ICS per unique nuance activated. The measurement unit and the billing unit.                |
| **ELO**        | Where a Dive sits in the field. Unbounded. Relative to everyone who entered the same World.                                 |
| **Fidelity**   | Reliability signal returned alongside every reading.                                                                        |
| **StageCard**  | The output of a Dive. Video, moment-glyph string, ELO delta, evidence-linked breakdown.                                     |

## The surfaces

Every surface sits on the same Worlds, the same Protocols, and the same instrument.

| Surface          | Where                 | Access                                                                                        |
| ---------------- | --------------------- | --------------------------------------------------------------------------------------------- |
| **Stage & Dive** | Closed beta           | Request access at [blankstate.ai/stage-worlds-beta](https://blankstate.ai/stage-worlds-beta). |
| **Atlas**        | `atlas.blankstate.ai` | Enterprise. Contracted (POA). Private tenant, bespoke integration.                            |
| **IBF API**      | `ibf.blankstate.ai`   | Programmatic access. Available under an Atlas engagement. ICS-metered.                        |
| **MCP server**   | `@blankstate/mcp`     | Agent-native access via the Model Context Protocol.                                           |

## The SGM at a glance

The Spectral Geometric Manifold is a self-supervised sensor engine that reads the structure of an interaction, not what was said, but how it unfolded. One instrument across every domain, language, and modality.

| Property      | What it means                                                |
| ------------- | ------------------------------------------------------------ |
| Deterministic | Same input plus same Protocol produces bit-identical output. |
| Universal     | One measurement space across domains, languages, modalities. |
| Traceable     | Every reading reconstructs to the segments that produced it. |
| Real-time     | Sub-second per reading on CPU.                               |
| Cross-lingual | Language-agnostic by construction.                           |

See [The SGM](/guides/concepts/the-sgm) for the full specification.

## Structural separation

A World without measurement is theatre. A sensor without a World is a scoring model. Blankstate holds both, and keeps them apart. **Eva** authors and guides the creation of Worlds and Protocols. The **SGM** reads what unfolds inside a World. The generator cannot be its own ruler.

## Where next

<CardGroup cols={3}>
  <Card title="SGM" href="/guides/concepts/the-sgm">The sensor.</Card>
  <Card title="Protocols" href="/guides/concepts/protocols">What is being sensed.</Card>
  <Card title="ICS" href="/guides/concepts/ics">The unit.</Card>
  <Card title="ELO" href="/guides/sand/elo">Where a Dive sits in the field.</Card>
  <Card title="Pricing" href="/guides/get-started/pricing">What it costs.</Card>
</CardGroup>