From Nikkei Asia – “Nikon, Sony and Canon fight AI fakes with new camera tech:
“TOKYO — Nikon, Sony Group and Canon are developing camera technology that embeds digital signatures in images so that they can be distinguished from increasingly sophisticated fakes.
Nikon will offer mirrorless cameras with authentication technology for photojournalists and other professionals. The tamper-resistant digital signatures will include such information as date, time, location and photographer.”
Adobe Content Authenticity Initiative “secured metadata” explained (Nikon joined the initiative with the Z9 camera):