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9. Clouded Perception

Can we trust our eyes?
A gorgeous lake hides a secret.
Puzzle by Galen, Bellingcat. Part of the Maritime Mysteries series.
This serene lake is a beautiful sight, but something is off: this image has been manipulated.
What should we do if an image is altered, either by hand or with AI?
What is the 6 digit number hidden in the image?
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