Maybe its a noob questions but I'm participating in different twitter bounties so I got today one transaction of almost 80k satoshi, but idk for which campaign. How can I trace the sender? Tried looking for the senders address in the forum but got only one hit from campaign from early November in which I was not participating.
Campaigns usually provide you with some sort of Google docs sheets so you may want to trace it down. For future enrollments you may want to keep a record where do you apply how much they pay etc.