It's not possible for pob to stand on its own.
It is already built on hive blockchain from the start and it is decentralized. The only thing pob can do to be listed on other exchange also is to create wpob just like what leofinance did to their own token. Leo finance created wleo and was listed on many popular wallet and exchange sites like trust wallet.
The only way you can get pob for now is by curation.