After you create your user account, you will need to create your channel (like your YouTube channel). Then in your channel profile under the 'Settings' tab at the bottom of the page, you can link your BitChute channel with your YouTube channel by entering the YouTube channel identifier. You can find that by signing into YouTube, clicking on the gear icon in the top right corner to access your account settings. Next to your profile photo, click 'Advanced'. You will see your channel ID under "Account information."

Hope this helps...