---
title: "Read a snapshot of a link specification"
method: GET
path: "/link_specification/{id}/snapshots/{snapshotId}"
tags: ["Link"]
---

# Read a snapshot of a link specification

`GET /link_specification/{id}/snapshots/{snapshotId}`

## Request

- Base URL: `https://api.nullplatform.com`
- URL: `https://api.nullplatform.com/link_specification/{id}/snapshots/{snapshotId}`
- Auth: HTTP bearer

Read a single snapshot of a link specification, including its full content.

## Path parameters

- `id` string, uuid, required
- `snapshotId` string, uuid, required

## Response `200`

The snapshot, including its full content.

- SpecificationSnapshot: Append-only snapshot of a specification at one change of its watched fields. The id is what a package component pins as resource_revision_id.
  - `id` string, uuid, required: The snapshot id. This is the value a package component pins as `resource_revision_id`.
  - `specification_id` string, uuid, required: The specification this snapshot belongs to.
  - `sequence_number` integer, required: Per-specification counter; higher is newer.
  - `content_hash` string, required: SHA-256 of the specification's watched fields. Identical content never mints a second snapshot in a row.
  - `content` object, required: The specification as it was when this snapshot was minted.
  - `created_by` string, nullable: The user whose write minted the snapshot, or null.
  - `created_at` string, date-time, required: When the snapshot was minted.
  - `updated_at` string, date-time: Snapshots are immutable, so this matches `created_at`.

## Other responses

- `4XX`: Client error responses due to invalid input, missing parameters or insufficient permissions.
- `5XX`: Server error responses.

## Changes

- **2026-09-17** `43b3c1ecdfd8`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/nullplatform/apis/nullplatform-api/changes/link_specification/:id/snapshots/:snapshotId/get.md)

---

[API](https://skmtc.dev/nullplatform/apis/nullplatform-api.md) - [All operations](https://skmtc.dev/nullplatform/apis/nullplatform-api/llms.txt) - [OpenAPI document](https://skmtc.dev/nullplatform/apis/nullplatform-api/revisions/d3f66bc633d4?raw)