these are ethereum contracts that aura should be aware of as aura could have smart contracts just like these and anyone can launch them on the aura blockchain
this is like cloud mining but you can buy a share in any monetized machine so a robot that does labor could be owned by 100 people who profit from the labor whether they are directly involved with the company or not or it could be used for cloud mining services https://bitcointalk.org/index.php?topic=1797720.0
I am going through and looking at all the eth tokens so I will be adding more here so that people can see what the possibilities are for aura