> For the complete documentation index, see [llms.txt](https://docs.bbscoin.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bbscoin.org/development-integration/daemon-node-api/json-rpc-request/getblockheaderbyhash.md).

# getblockheaderbyhash

### Input

| Argument | Mandatory | Description                        | Format |
| -------- | --------- | ---------------------------------- | ------ |
| hash     | yes       | Block hash of the block to request | string |

### Output

| Argument      | Description                               | Format |
| ------------- | ----------------------------------------- | ------ |
| block\_header | Block header                              | struct |
| status        | Status of the request, "OK" if successful | string |