> ## Documentation Index
> Fetch the complete documentation index at: https://docs.uniblock.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# web3_sha3

> Returns Keccak-256 (not the standardized SHA3-256) of the given data.

### Parameters

<ParamField query="chainId" type="string" default="10218" required>
  Unique identifier for a blockchain network.
</ParamField>

<ParamField body="id" type="number" default={1} required>
  Request identifier used to match responses.
</ParamField>

<ParamField body="jsonrpc" type="string" default="2.0" required>
  JSON-RPC version.
</ParamField>

<ParamField body="method" type="string" default="web3_sha3" required>
  JSON-RPC method name.
</ParamField>

<ParamField body="params" type="object" default={["0x68656c6c6f20776f726c64"]} placeholder="[&#x22;0x68656c6c6f20776f726c64&#x22;]" required>
  Parameters for method web3\_sha3: \[data].

  Positional parameters for <code>web3\_sha3</code>:

  <ul>
    <li><code>params\[]</code>: String - The data to convert into a SHA3 hash.</li>
  </ul>
</ParamField>

### Returns

<ResponseField name="result" type="string">
  Data - The Keccak-256 hash of the given string. Example: <code>"0x47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad"</code>.
</ResponseField>

<RequestExample>
  ```bash Curl theme={null}
  curl --request POST \
    --url https://api.uniblock.dev/uni/v1/json-rpc?chainId=10218 \
    --header 'content-type: application/json' \
    --data '{
      "id": 1,
      "jsonrpc": "2.0",
      "method": "web3_sha3",
      "params": [
        "0x68656c6c6f20776f726c64"
      ]
    }'
  ```
</RequestExample>

<ResponseExample>
  ```json Success theme={null}
  {
    "jsonrpc": "2.0",
    "id": 1,
    "result": "0x47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad"
  }
  ```
</ResponseExample>