: This records the specific IP address ( 2409:4073... ) authorized to view the video.
Are you trying to this video or are you having trouble playing it on a specific site? : This records the specific IP address ( 2409:4073
: These are security tokens. The vhash is a unique identifier for the video, and ttl (Time To Live) is an expiration timestamp. Important Note on Access : These are security tokens
If you are trying to view a specific "Long Paper" or lecture video: : Go back to the website or app where you found this link
Because this link includes a specific and an expiration token (ttl) , it is likely "session-locked." This means the link will only work for the person who originally generated it and will expire after a short period.
: Go back to the website or app where you found this link.