> ## 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.

# Glass-box

> Every score traces to source evidence.

Every Blankstate output carries its own evidence. There is no score without a source segment. There is no claim without a quote.

The evidence is the reading. The SGM returns the segments that produced each activation as part of the primary output, in the same pass that produces the score.

## What every response contains

| Field                    | Description                           |
| ------------------------ | ------------------------------------- |
| `protocol`               | Protocol id and pinned SGM release    |
| `score`                  | Aggregate activation 0–1              |
| `fidelity`               | Reliability estimate for this reading |
| `metamarkers[]`          | One object per activated nuance       |
| `metamarkers[].segment`  | Exact source text offset and text     |
| `metamarkers[].score`    | Nuance-level activation strength      |
| `metamarkers[].fidelity` | Nuance-level reliability              |

## Auditability

A metamarker is directly displayable to the participant, a reviewer, or a regulator. The full response is the audit log: each activation points to the exact source segment that produced it.

## Immutability

Published Protocols are versioned and immutable. A stored response from 2024 can be re-examined and the metamarkers will trace to the same Protocol definition as they did on the day of capture.