Perception is built from inputs.
Everyone forms a view of your work from what they can see: the information you share, the results they experience, and what others tell them. When those inputs are missing, people do not stop forming a view. They speculate.
Speculation is where misrepresentation starts. A colleague concludes you had no part in an effort you helped lead. There is no malice in it, only missing information. But decisions about your role, your scope, and your next opportunity get made on that view all the same.