Camera companies add authentication tech to photos to combat fake images
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Nikon, Sony, Canon adding tech to cameras to embed tamper-resistant digital signatures into photos to prove authenticity
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Aims to help restore trust in images/photojournalism amid rise of realistic AI-generated images
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Signatures contain photo metadata like date, time, location to authenticate image is unchanged
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Can help professionals like journalists prove photos not manipulated
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Doesn't fully solve problem of AI-generated fakes on social media that erode trust in images