Panda.Earth is a social simulation APP built on blockchain. Key features: 1. Only authorized partner of China Conservation and Research Center for Giant Panda on block chain. Panda.Earth will make every real, rare, and adorable panda a digital copy and store them on blockchain. These cryptopandas are in real mapping, uniqueness, rareness and popularity. 2. Based on cryptopanda, we extend the Crypto-Collectibles trading. That is to say, cryptopandas can exchange to other crypto-collectibles in Panda.Earth. 3. We also extend digital currency transactions based on crypto-collectibles. Example, you can purchase cryptopandas through token A, but choose token B to sell it.