It looks like it yes. Is it video or audio or other type of file? If it's video then try using Bitzi to see if there's reports about it to see if it is genuine; How to use Bitzi Web Lookup; also more about video tips here Movie download issues

BTW I don't know if you've experienced this as it only seems to happen in OSX, but if you attempt to downld a fake file, it goes to connecting for ages & then self-cancels. That happens to me but I'm not sure about other osx users.

Also control-click (or right-click if you have the mighty mouse) at the top of the search results column heading & choose to show Vendor/Version. You can do this for the downld & upload windows also. This will show which gnutella client program it is that's hosting the file. RAZA (Shareaza) is reknown for being difficult to connect to.