The problem Soul Tag solves

More details are on github
https://github.com/Unchain-ETHSeoul/ETH-Seoul--SoulTag
We have recognized that too much of our personal information is abused in our daily lives. Our information is being processed and sold by unreliable third parties. But we are too defenseless on these issues. Blockchain has brought information transparency, but the protection of personal data has not yet been achieved. This is the biggest wall that blockchain has to overcome in order to be applied in reality. Our experimental protocol design makes it possible to achieve self-soverign identity (SSI) by delegating privacy and privacy rights to individuals. We make many things possible, such as data selling and rental, through this point. Also, this will solve the flaws of nft and maximize the performance. It is expected that many problems of the Defi ecosystem can also be solved based on the utilization of this protocol.

We propose a protocol that achieves both anonymity and confidentiality without using zkp. This protocol allows us to achieve SSI.

Challenges we ran into

More details are on github
https://github.com/Unchain-ETHSeoul/ETH-Seoul--SoulTag