---
title: Citation
seo:
  title: Citation — Python SDK
  description: Links a score back to a specific span in a trace. (Python SDK)
description: Links a score back to a specific span in a trace.
---

Use citations in your `Judge.score()` return value to highlight which
part of the trace contributed to the score.

## Attributes

| Prop | Type | Default | Description |
| - | - | - | - |
| `span_id?` | `str` | - | The span ID being referenced. |
| `span_attribute?` | `str` | - | The attribute name within the span. |