> For the complete documentation index, see [llms.txt](https://docs.getblock.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.getblock.io/api-reference/rootstock-rsk/rsk_web3_sha3.md).

# web3\_sha3 - Rootstock

Example code for the web3\_sha3 json-rpc method. Сomplete guide on how to use web3\_sha3 json-rpc in GetBlock.io Web3 documentation.

#### Parameters

`DATA` - array of string

the data to convert into a SHA3 hash.

#### Request

```java
wscat -c wss://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/
# wait for connection and send the request body 
{"jsonrpc": "2.0",
"method": "web3_sha3",
"params": ["0xf2a2b854721d4372474fc76cc13445a73369c0c334f4935c88bde3c310f28c9a"],
"id": "getblock.io"}
```

#### Response

```java
{
    "id": "getblock.io",
    "jsonrpc": "2.0",
    "result": "0xf5d3389b32cee33308ce9af2d8aefa1517aa90ccb7b1d2eb29c61f13e1fd3cea"
}
```