If you have access to this data and want to crawl YouTube data legally and compliantly, you can consider the following methods:

1.Use official API: 

YouTube provides APIs (application programming interfaces) that developers can use. These APIs allow you to interact with the YouTube platform through code and obtain data. This is usually the most legal and reliable way because they are officially provided by YouTube.

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2.Use RSS subscriptions:

 If your goal is to get notifications of video updates, consider using the RSS subscription feature. Although this is not direct data scraping, RSS subscriptions can keep you updated with the latest content on the channel.

3.Web crawlers and anti-crawler strategies:

 Although it is technically possible to write web crawlers to extract information from websites, modern websites, such as YouTube, often implement various anti-crawler strategies to protect their content from being illegally scraped. In addition, unauthorized scraping may be illegal and will have an impact on the performance of the target website, which is unethical.

4.Through partnerships or certifications: 

In some cases, if you have a partnership or certification with YouTube, you may be able to gain access to specific data.

5.Use legal data export options: 

YouTube may provide data export functions that allow users or personal accounts to download their own viewing history, like lists, and other personal related data. This is not really "scraping", but it is a legal and ethical way to obtain your personal data.