> For the complete documentation index, see [llms.txt](https://docs.4dlabs.space/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.4dlabs.space/task-hub/how-to-contribute.md).

# How to Contribute

The **Task HUB** is 4D Labs’ crowdsourced contribution platform for users. We will introduce different seasons at various stages, gradually empowering community members to become 3D and 4D data collectors and contributors.

Visit <https://dapp.4dlabs.space/> to begin your contribution journey.

As planned, **Season 1, titled “Prelude,”** will primarily feature foundational tasks.

### Log in or sign up

<figure><img src="https://180244189-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FS4oJapEzqyyghI2WRY2v%2Fuploads%2Feu43oTRdPdEhOjXbRC3B%2Fimage.png?alt=media&amp;token=1f23f883-3590-42d4-a602-a846a03423b1" alt="" width="354"><figcaption></figcaption></figure>

You can sign up for or log in to your 4D Labs account using a crypto wallet, a traditional email address, or a social media account such as Google or X.

Because some upcoming tasks will require on-chain interactions, we recommend using an EVM-compatible wallet address with sufficient BNB on BNB Chain to cover gas fees.

### **Explore and Contribute**

* #### Daily Check in

<figure><img src="https://180244189-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FS4oJapEzqyyghI2WRY2v%2Fuploads%2Fbgp3wpljvfUiT2XB4EPd%2Fimage.png?alt=media&amp;token=09fe0105-507b-42a7-bf36-2e472f932e99" alt=""><figcaption></figcaption></figure>

Based on the UTC+0 time zone, you can check in at one landmark on any of the six continents once every 24 hours. Check-ins require an on-chain transaction on BNB Chain, so please ensure that your wallet has sufficient BNB to cover the gas fee.

We recommend checking in on the continent where you are located to support your region. Check in for seven consecutive days to earn a bonus Score boost.

* #### **Complete Social Media Tasks**

<figure><img src="https://180244189-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FS4oJapEzqyyghI2WRY2v%2Fuploads%2FnVQ9MBAVODPAvzgdohei%2Fimage.png?alt=media&amp;token=8b7ab631-cd06-47d5-8ae7-90ddba1a17de" alt=""><figcaption></figcaption></figure>

Simply complete the required tasks on X, Discord, and Telegram. Before starting a task, you will be asked to connect the relevant social media account. You can authorize the connection with confidence.

X Premium or verified accounts will earn 2× Score for X-related tasks.

* #### **Refer Friends, Followers, or Community Members**

<figure><img src="https://180244189-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FS4oJapEzqyyghI2WRY2v%2Fuploads%2FI6JuT7TZW5CcqGt7yqN3%2Fimage.png?alt=media&amp;token=d5dba1cf-8221-4943-9649-884426df1c0f" alt=""><figcaption></figcaption></figure>

1. After signing up or logging in, each user will receive a unique referral link.
2. 4D Labs uses a two-tier referral reward system. If someone you directly referred goes on to refer another user, you can earn both direct and indirect referral rewards.
3. For now, only Score earned from check-ins and social media tasks is eligible for referral rewards. Score earned through referral rewards will not generate additional referral rewards.
4. Users with special status, such as Alpha Users and users with an X Premium or verified account, receive higher direct and indirect referral reward rates. See the [**Score**](/task-hub/score.md) section for details.

* #### View Your Role Icon, Total Score, and Ranking

<figure><img src="https://180244189-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FS4oJapEzqyyghI2WRY2v%2Fuploads%2FIyMI8Hzwz5JPHOs1Mngw%2Fimage.png?alt=media&amp;token=6b9231da-0586-48ca-bc47-48bbae7bebf7" alt=""><figcaption></figcaption></figure>

Go to your [**Profile**](https://dapp.4dlabs.space/profile) page to view your account details:

1. If you are a X verified user or an Alpha User, a special icon will be displayed on your profile.
2. You can view your total Score, ranking, and detailed Score breakdown, as well as check the connection status of your social media accounts.