The findings for this project were produced through multiple steps and interviews with sources inside Iran, many of whose names cannot be disclosed for safety reasons.

After examining social media accounts and online activity to establish each person's identity and involvement in the protests, the BBC team cross-checked the circumstances around their deaths against open-source data from inside Iran.

Analysing footage of funerals and images of memorials provided key details, such as timing, location and circumstances of death.

Individuals were also identified in footage from morgues, including the Kahrizak Forensic Medical Centre, to where many bodies from Tehran and surrounding areas were transferred.

The work became especially difficult at the height of the protests on 8 January, when Iran's government cut off internet, mobile phone and landline access for nearly three weeks.

But by piecing together information from inside the country via Starlink, the satellite network owned by Elon Musk, and relying on eyewitness accounts from Iranians who travelled to the borders to pick up neighbouring signals, BBC News Persian was able to start verifying the reports of protesters' deaths.

The BBC Visual Journalism team has created an interactive "face wall" for the BBC News Persian website, where readers can explore the profiles of victims identified through the research by clicking on each photograph.

The project is ongoing, and the team aims to add further names and stories as verification continues.