Sounds like a good idea and will be no shortage of images out there for a court script
I think I have a plan to solve all the issues, will pm you tomorrow...
One thing I wonder may work well is adjusting the time frame a little so will basically be in 3 blocks:
Block 1
1) The player submits collateral (something they don’t want made public).
2) The system assigns a task - prob best to have groups of random tasks based on common "crimes" e.g. masturbation will probably force you to be locked for 24 hours in chastity etc.. and some harder tasks for harder crimes
Block 2 (24 hours after given task)
1) Within 24 hours, the player must submit a link to evidence (pics or video) that they completed the task.
Block 3 (24 hours after task completed deadline)
1) In this time till the trial everyone gets to see the evidence (so its open and fair) But only approved judges get to vote (would start with judges being those who comment in here with the addition of people who go through it?) - voting can be anytime in the 24 hours (to cope with time difference) but the result is not given till the end of the 24 hours at their "trial date".
If the player is found “guilty” of not performing the task, the collateral is released. regardless, the task evidence and the result is made public for another 24 hours again to show it was fair.