---
title: "SessionState"
description: "the session state a held identity keeps in the store, checkpointed after each use: the cookies of the platform's cookie domains and when it was checkpointed"
section: concepts
address: /concepts/sessionstate
contract: 0476e35e6e275db5
---

# SessionState

the session state a held identity keeps in the store, checkpointed after each use: the cookies of the platform's cookie domains and when it was checkpointed

[figure: SessionState is a value at none scope. The drawing shows its fields and the objects that they point at.]

| property | value |
|---|---|
| kind | value |
| scope | none |
| key | none |
| store | none |
| family | sources |



## Fields


| field | type | required | note |
|---|---|---|---|
| `platform` | `text` | yes |  |
| `cookies` | [HeldCookie](/concepts/heldcookie) | yes |  |
| `checkpointed_at` | `time` | yes |  |



## Routes that use it
No route takes or returns SessionState directly. The record holds it, and the objects that point at it reach it.