> ## 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.

# eth_submitWork

> Used for submitting a proof-of-work solution.

### Parameters

<ParamField query="chainId" type="string" default="1001" 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="eth_submitWork" required>
  JSON-RPC method name.
</ParamField>

<ParamField body="params" type="object" default={["0x0000000000000001","0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef","0xD1FE5700000000000000000000000000D1FE5700000000000000000000000000"]} placeholder="[&#x22;0x0000000000000001&#x22;,&#x22;0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef&#x22;,&#x22;0xD1FE5700000000000000000000000000D1FE5700000000000000000000000000&#x22;]" required>
  Parameters for eth\_submitWork: \[nonce, powHash, mixHash].

  Positional parameters for <code>eth\_submitWork</code>:

  <ul>
    <li><code>params\[0]</code>: 8 Bytes - The nonce found (64 bits).</li>
    <li><code>params\[1]</code>: 32 Bytes - The header’s pow-hash (256 bits)</li>
    <li><code>params\[2]</code>: Data - 32 Bytes - The mix digest (256 bits).</li>
  </ul>
</ParamField>

### Returns

<ResponseField name="result" type="boolean">
  Boolean - returns true if the provided solution is valid, otherwise false. Example: <code>true</code>.
</ResponseField>

<RequestExample>
  ```bash Curl theme={null}
  curl --request POST \
    --url https://api.uniblock.dev/uni/v1/json-rpc?chainId=1001 \
    --header 'content-type: application/json' \
    --data '{
      "id": 1,
      "jsonrpc": "2.0",
      "method": "eth_submitWork",
      "params": [
        "0x0000000000000001",
        "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
        "0xD1FE5700000000000000000000000000D1FE5700000000000000000000000000"
      ]
    }'
  ```
</RequestExample>

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