Learn More About ZERO
Yes it is and is being traded since March 2017
For now in Cryptopia Exchange but soon we will be listed in many more exchanges
The Zero community claims the ownership
Yes it is. It is based on Equihash Algorithm with different parameters and needs specialized software to be mined
There is a vibrant community that will reply to all your questions in the biggest crypto-space forum Bitcointalk. Please visit our Bitcointalk Thread : here
The Zero project was in stasis for many months. It has now been revived by its own community which took over end of November 2017.