PLD is the circulation certificate of the PURELAND PROJECT community economic system of the global blockchain ecology. PURELAND PROJECT (Pure Land Project) is a cross-industry and diversified vertical application public chain based on blockchain technology, which supports various blockchain vertical platforms or DApps in the field of application landing in various industries around the world. PLD adopts the PBFT consensus mechanism, and the bottom layer of the public chain is developed based on Hyperledger Fabric. The technical highlights include: high-strength smart contracts support flexible business scenarios, multiple development language support, Private Data privacy policy to ensure data privacy, and the consensus mechanism can be flexibly plugged in wait. At present, PLD is issued based on Ethereum ERC20, and will be migrated to the main chain in the future.