The exchange of currency for the world is an initial model of blockchain+barter, returning to the origin of currency attributes, barter exchange, and linking virtual digital assets with the real economy. By exchanging idle assets and inventory assets in the real economy for goods, the value of virtual currency can be exchanged in both directions. Coin Exchange has currently reached strategic partnerships with nearly 60 physical enterprises on the chain. Through the process of exchange, it has achieved community trust and consensus on the blockchain online, created a consensus economy for virtual digital currency, built an offline blockchain physical enterprise alliance, explored the path of large-scale commercial use of blockchain technology in the offline industry, and promoted the progress and development of the entire social real economy. Currency exchange for the world, link value, and mutual trust among everyone....