Hi Doua,
Thank you for your interest in volunteering on Amara.org to help make online content more accessible to the world! I will share your request for certificates or digital badges with our development team.
Certificates become challenging to track both the time spent and quality of subtitles before issuing certificates because each video and language have different time requirements. The time spent also varies greatly by each volunteer's experience level. Simple time-trackers will not solve the issue easily without a great deal of time required for internal reviews done by human reviewers using quality standards.
Until we are able to offer certificates for use in academic profiles you can share the link to your Amara profile activity to showcase your contributions. Anyone who creates a free Amara account and logs in can view your shared activity link.
You can share this link to show the work you have done on Amara for references in academic and professional settings so people can see the work you have done.
Thank you for your contributions on Amara.org! Happy subtitling from the Amara.org team :)
Doua Il