I really do hope as well that the court will side on the supposedly winner of the lottery because he has already exerted a lot of time, effort, and money just to win this case.
all people when playing the lottery are given a ticket, probably that winner must have the ticket with him, but if the lottery result was not disclosed on social networks, it was not disclosed on TV and radio or newspapers or some other means of communication in which two or more people besides the winner have a visa to serve as witnesses, so it will be very difficult for the winner to prove anything, because the guys who will organize the lottery say that there is nothing in the system, if there is nothing in the system then there is just the winner's ticket, some proof will be needed and the only proof for the court of reason to the winner would be if he had some video showing that the guys who organized the lottery disclosed that that ticket he has was the winning ticket of the lottery , without proof the court will be unable to do anything
Justice system of the country in which OP is residing to also plays a great role in the outcome of this issue because if a country's justice system is fucked up, then there's a little chance that the one telling the truth will win. This is because money and power could buy anything if the authorities who are in charge are all rotten. Hopefully, we'll be updated with this issue and really rooting for him to win because a money should be honored to whom it's due.
in this case, I even believe that even if the company that organizes the lottery has a lot of power and manages to corrupt anyone, if that company, on the day that it was announcing the winner of the lottery, used means of communication such as: TV, Radio, social networks like instagram, twitter and facebook so the winner only needs to take a picture if it's social media or go look for a video on youtube if it was released on tv, if it's radio and it could be complicated to have the audio of the day of the announcement and in this part the company could corrupt the radio employees to delete everything, but they would not be able to corrupt it in court if the winner presents proof