# `getOnchainIdentifier`

Returns the on-chain identifier generated internally. This identifier is appended to the `data` field of transactions to enable on-chain tracking.

## Usage


<Tabs items={['example.ts', 'setup.ts']}>
  <Tabs.Tab>
    ```typescript
    import { protocolKit } from './setup.ts'

    const onchainIdentifier = await protocolKit.getOnchainIdentifier()

    console.log(onchainIdentifier) // e.g., '5afe006562303761323539616336346466346135306537646561393238383963'
    ```
  </Tabs.Tab>
  <Tabs.Tab>
    ```typescript
    import Safe from '@safe-global/protocol-kit'

    export const protocolKit = Safe.init({
      // ...
      onchainAnalytics: {
        project: 'Cow Swap', // Specify your project name
        platform: 'Web'      // Optional platform
      }
    })
    ```
  </Tabs.Tab>
</Tabs>


## Returns

`string`

The on-chain identifier in hexadecimal format (`5afe00...`), which includes hashed metadata such as project name, platform, tool, and tool version.

For more details about the identifier format, please refer to the [On-chain identifier](../../sdk/onchain-tracking.mdx#on-chain-identifier-format) section.