---
title: "Changes to Get block headers (max: 20) for minHeight <= height <= maxHeight."
method: GET
path: "/blockchain"
---

# Changes to Get block headers (max: 20) for minHeight <= height <= maxHeight.

`GET /blockchain`

> Every recorded change to this endpoint, newest first.
> 18 revisions in range; 1 not diffed.

## Timeline

Changed in 3 of 18 revisions.

- **2023-01-22** `4c3b4d6d6be6` — 1 breaking, 2 info
- **2021-07-05** `547cd6bf0829` — 2 breaking, 1 info
- **2020-09-15** `bf2a6ec6b22d` — 1 breaking, 2 warning, 3 info

## Changes

- **2023-01-22** `4c3b4d6d6be6` — 1 breaking, 2 info
  - removed the required property `allOf[subschema #2]/result/block_metas/items/header/voters_hash` from the response with the `200` status
  - added the required property `allOf[subschema #2]/result/block_metas/items/header/next_validators_hash` to the response with the `200` status
  - added the required property `allOf[subschema #2]/result/block_metas/items/header/validators_hash` to the response with the `200` status
- **2021-07-05** `547cd6bf0829` — 2 breaking, 1 info
  - removed the required property `allOf[subschema #2]/result/block_metas/items/header/next_validators_hash` from the response with the `200` status
  - removed the required property `allOf[subschema #2]/result/block_metas/items/header/validators_hash` from the response with the `200` status
  - added the required property `allOf[subschema #2]/result/block_metas/items/header/voters_hash` to the response with the `200` status
- **2020-09-15** `bf2a6ec6b22d` — 1 breaking, 2 warning, 3 info
  - removed the success response with the status `200`
  - deleted the `query` request parameter `maxHeight`
  - deleted the `query` request parameter `minHeight`
  - api operation id `blockchain` removed and replaced with ``
  - api tag `Info` removed
  - removed the non-success response with the status `500`

---

[Operation](https://skmtc.dev/finschia/apis/ostracon-rpc/docs/blockchain/get.md) · [API](https://skmtc.dev/finschia/apis/ostracon-rpc.md) · [Page](https://skmtc.dev/finschia/apis/ostracon-rpc/changes/blockchain/get)