What is Zetachain? Zetachain is a layer1 blockchain with a consensus mechanism of Proof of Stake(PoS). Zetachian is a layer 1 interoperable with other blockchains. Each validator node of Zetachain is assigned to an observer. Observers will report on related events to Zetachain to reach consensus. To interact with other blockchains, each validator is assigned a part of the public/private key. The set of all validators holding the key can directly interact with another blockchain. Because of th...