---
title: Citation
seo:
  title: Citation — TypeScript SDK
  description: >-
    Links a score back to a specific span in a trace, enabling drill-down from
    evaluation results into the traced execution. (TypeScript SDK)
description: >-
  Links a score back to a specific span in a trace, enabling drill-down from
  evaluation results into the traced execution.
---

## Properties

| Prop | Type | Default | Description |
| - | - | - | - |
| `spanId?` | `string` | - | The span ID this citation refers to. |
| `spanAttribute?` | `string` | - | The span attribute (e.g. "input", "output") being cited. |