Before revision:  The major parts what we have changed include  removing the bloated history transactions from data synchronization, no mining, no blockchain, it's environmentally friendly, no checkpoint, no exchange hub needed, it's purely decentralized and purely based on proof of stake.
After revision:  The major parts what we have changed include , a fast transparent distribution solution which can avoid deceptions between the sponsor and the audience, removing the bloated history transactions from data synchronization, no mining, no blockchain, it's environmentally friendly, no checkpoint, no exchange hub needed, it's purely decentralized and purely based on proof of stake.