ZETAchain testnet manual

What is Zetachain? Zetachain is a Proof of Stake (PoS) blockchain built on the Cosmos SDK that is connected to external blockchains (e.g. Ethereum, BSC, Solana, Avalanche, Terra, Bitcoin) and layers (e.g. Polygon, Optimism, Arbitrum) decentralized, transparent and in an efficient way.