Looks for block which contains specified datum.
## Request Structure
`JSON object:`
```JSON
{
"method": "block",
"subcommand": "find",
"arguments": {
"net": "network_name",
"chain": "chain_name",
"datum": "datum_hash"
},
"id": "1"
}
```
`Parameters:`
**`net`** - name of the Cellframe Network. The list of networks can be found in the `<Config_dir> \ etc \ network` folder or received using - [[Node Command - NET LIST]]
**`chain`** - the name of chain (`main` or `zerochain`)
**`datum`** - the hash of the datum (`HEX` format)
If you make a request in the Cellframe network, use parameter `chain:main`.
### Curl Example
`Request:`
```actionscript
curl --unix-socket /opt/cellframe-node/var/run/node_cli -X POST http://localhost/connect -d '{
"method": "block",
"subcommand": "find",
"arguments": {
"net": "riemann",
"chain": "main",
"datum": "0x9117BD88275DF91C01F4BACD9AFEA1049408754231752D61EB4E4C716DB6381F"
},
"id": "1"
}'
```
`Response:`
```json
{
"type": 2,
"result": [
{
"Blocks": [
"0x8811272C4E7D36E56194E4773202322C6773306BDFB0BB4AD0BF43A9E328E5A4"
],
"Total": 1
}
],
"id": 1
}
```