Can I prove I only played solo?

I know that I can create a hero and only play solo 100% of the time in diablo 3.

My question is this: Can I and other people see that my hero ONLY played solo all the time and never joined a public game?

I'm asking this because I want to create a hero and only play solo and I like to take credit for all my achievements, but if it's not shown that I played solo ALL the time, then it's kinda pointless.

And if it's account-wide, it's not an issue for me. I like to create a new account to create one single hero for this purpose.

Solution 1:

There is one way to "prove" you have never played with other players but it requires either a new account or an account that hasn't played cooperative games yet.

Generally speaking you can prove it by having your cooperative achievement list empty. There are achievements like Heroes of the ages which trigger on joining a coop game. Also there are achievements that just "happen" in a coop game like Bloodletting for example.

Since achievements are account wide and not character specific, there isn't really a way to prove it otherwise.

The only other thing I could think of which wouldn't require a new account would be recording/streaming every bit of progress on a specific character.

Note that a new account means you have to buy a new copy of the game.