---
title: "GET /micro-blocks/hash/{hash}/header"
method: GET
path: "/micro-blocks/hash/{hash}/header"
tags: ["external", "chain"]
---

# GET /micro-blocks/hash/{hash}/header

`GET /micro-blocks/hash/{hash}/header`

Get a micro block header by hash

## Path parameters

- `hash` string, required

## Response `200`

Successful operation

- MicroBlockHeader
  - `hash` string, required — Base58Check encoded tagged hash
  - `height` integer, required
  - `pof_hash` string, required — Base58Check encoded tagged hash
  - `prev_hash` string, required — Base58Check encoded tagged hash
  - `prev_key_hash` string, required — Base58Check encoded tagged hash
  - `state_hash` string, required — Base58Check encoded tagged hash
  - `txs_hash` string, required — Base58Check encoded tagged hash
  - `signature` string, required — Base58Check encoded tagged value
  - `time` integer, required
  - `version` integer, required

## Other responses

- `400` — Invalid hash
- `404` — Block not found

---

[API](https://skmtc.dev/aeternity/apis/aeternity-node.md) · [All operations](https://skmtc.dev/aeternity/apis/aeternity-node/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/aeternity/aeternity-node/revisions/808589a8d8eb/schema)