Table 2.

Form for logging cheating events defined in the chain code.

examId	Unique identifier for the exam
studentId	Unique identifier of the candidate for whom cheating has been detected.
timestamp	Timestamp of the suspected cheating incident.
ipfsCID	Content identifier/hash on IPFS corresponding to the suspected cheating screenshot image for off-chain retrieval of original evidence.
yoloResults	The result of the YOLO model’s inference on the screenshot, including details such as the bounding box coordinates and confidence level of the detected target (i.e., the ‘suspected cheating’ object).
cheatingType	Type of cheating, fixed to ‘suspected cheating’.