# Common knowledge

## What is common knowledge

In Rememberizer, registered users **(publishers)** can select their uploaded documents through mementos and share them publicly as common knowledge. Other users **(subscribers)** can access this public knowledge and add it to their own resources.

By contributing their data, other users can collectively enhance the available information on the common knowledge page. This collaborative approach allows all users to access a richer data source, thereby improving the learning capabilities of their AI applications.

## Add public common knowledge

In order to subscribe a common knowledge to your resource, follow the instructions below

* On navigation bar, choose **Personal > Common Knowledge**. Then, you will see the public common knowledge page.

<figure><img src="https://2952947711-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FyNqpTh7Mh66N0RnO0k24%2Fuploads%2Fgit-blob-a0126e825a007be09b9b0faf44f87e7dcd457391%2Fnavbar_browse_ck.png?alt=media" alt="navbar browse ck"><figcaption></figcaption></figure>

<figure><img src="https://2952947711-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FyNqpTh7Mh66N0RnO0k24%2Fuploads%2Fgit-blob-2e88726ebd8946c4a5854f3a3ff73b7dba302053%2Fpublic_ck_page.png?alt=media" alt="public ck page"><figcaption></figcaption></figure>

* Then, look for the common knowledge you want to subscribe. You can look up the knowledge by typing the knowledge's name on search bar. You can optionally choose the filter option next to the search bar.

<figure><img src="https://2952947711-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FyNqpTh7Mh66N0RnO0k24%2Fuploads%2Fgit-blob-65c5bf13e97f3aca400e5d8a71aa21fabed797f2%2Ffilter_option_ck.png?alt=media" alt="Filter of search bar" width="249"><figcaption><p>Filter of search bar</p></figcaption></figure>

<figure><img src="https://2952947711-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FyNqpTh7Mh66N0RnO0k24%2Fuploads%2Fgit-blob-98163747ec8002fe18cad75e2170831d1132fc28%2Fpublic_ck_search.png?alt=media" alt="Example of a search result"><figcaption><p>Example of a search result</p></figcaption></figure>

* Then click **Add** button on the public common knowledge. After successful subscribe, you will see the **Add** button change to **Remove** button.

<figure><img src="https://2952947711-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FyNqpTh7Mh66N0RnO0k24%2Fuploads%2Fgit-blob-1d273263505f9303296258a00d638ec8c8ba3631%2Fnot_add_ck.png?alt=media" alt="Unadded common knowledge"><figcaption><p>Unadded common knowledge</p></figcaption></figure>

<figure><img src="https://2952947711-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FyNqpTh7Mh66N0RnO0k24%2Fuploads%2Fgit-blob-4ad593afd9e73c567ce2495faabc36f25c5befcd%2Fadded_ck.png?alt=media" alt="Added common knowledge"><figcaption><p>Added common knowledge</p></figcaption></figure>

* Later, if you want to remove a subscribed knowledge, click the **Remove** button.

## Create a common knowledge

For detailed instructions of creating and sharing a common knowledge, visit this page [registering-and-using-api-keys](https://docs.rememberizer.ai/developer-resources/integration-options/registering-and-using-api-keys "mention").

{% hint style="info" %}
Common knowledge is built on the foundation of [Mementos](https://docs.rememberizer.ai/personal-use/personal/mementos-filter-access), which allow you to control exactly which documents are shared. Once created, developers can access your common knowledge through APIs to build custom applications or integrate with [LangChain](https://docs.rememberizer.ai/developer-resources/integration-options/langchain-integration) and [OpenAI GPTs](https://docs.rememberizer.ai/developer-resources/integration-options/creating-a-rememberizer-gpt).
{% endhint %}