The Cosmos network consists of many independent, parallel blockchains, called zones, each powered by classical Byzantine fault-tolerant (BFT) consensus protocols like Tendermint (already used by platforms like ErisDB). Some zones act as hubs with respect to other zones, allowing many zones to interoperate through a shared hub. The architecture is a more general application of the Bitcoin sidechains concept, using classic BFT and Proof-of-Stake algorithms, instead of Proof-of-Work.Cosmos can interoperate with multiple other applications and cryptocurrencies, something other blockchains can’t do well. By creating a new zone, you can plug any blockchain system into the Cosmos hub and pass tokens back and forth between those zones, without the need for an intermediary. While the Cosmos Hub is a multi-asset distributed ledger, there is a special native token called the atom. Atoms have three use cases: as a spam-prevention mechanism, as staking tokens, and as a voting mechanism in governance. As a spam prevention mechanism, Atoms are used to pay fees. The fee may be proportional to the amount of computation required by the transaction, similar to Ethereum’s concept of “gas”. Fee distribution is done in-protocol and a protocol specification is described here. As staking tokens, Atoms can be “bonded” in order to earn block rewards. The economic security of the Cosmos Hub is a function of the amount of Atoms staked. The more Atoms that are collateralized, the more “skin” there is at stake and the higher the cost of attacking the network. Thus, the more Atoms there are bonded, the greater the economic security of the network. Atom holders may govern the Cosmos Hub by voting on proposals with their staked Atoms.
Metaverse is a leading public blockchain based in China. Designed to facilitate low-cost, convenient transfer of digitized personal data and assets with unprecedented security and privacy, Metaverse aims to revolutionize the way financial services and transactions are processed, and to improve outdated and inefficient identity verification services with a network of Digital Assets, Digital Identities, and Oracle intermediaries. Metaverse is an open-source public blockchain that provides digital assets, digital identities and Oracles as a foundational infrastructure for social and enterprise needs. Through Blockchain-as-a-Service (BaaS), we make convenient, secure digital financial services accessible to all applications at virtually no cost. Founded in 2016, Metaverse went live in February of 2017. We strongly believe that blockchain technology is the catalyst for a better future - the New Reality. The concept is building a network of smart properties and a decentralized exchange for a smart and secure infrastructure. It already has dApps like Supernova running on the mainnet, and cross-chain compatibility with ERC-20 tokens is right around the corner in the project’s development roadmap. Metaverse ETP is used to value or collateralize smart contracts on the Metaverse blockchain network. It’s also used to pay transaction/gas fees. ETP is generated through PoW mining. It’ll soon introduce a PoS model to the platform. Metaverse supports digital identities, assets, oracles, and exchanges, making it a versatile blockchain 3.0 solution. Its development ecosystem already has a gold-backed crypto trading app on the market. Many more are in development for release before 2020. ETP is tradeable on a wide array of crypto exchanges. Its current PoW model will soon be supplemented by a PoS hybrid.'