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.
'Solve.Care is a healthcare IT company that builds blockchain platforms which the team believes may improve the way healthcare is delivered and managed. The Solve.Care platform reportedly uses blockchain technology as the underlying distributed ledger for coordinating care, benefits and payments between all parties in the chain of healthcare: patients, doctors, pharmacies, laboratories, employers, insurers, and others. SOLVE tokens may be used to secure efficient and transparent healthcare administration around the world. The token supply is fixed and the price variable, as determined by market supply and demand. SOLVE token runs natively on the Ethereum blockchain and is designed to follow the ERC20 token standard. SOLVE utility tokens are the currency used for transactions on the platform. According to the foundation, they can be utilized to pay for Care Administration Network fees, establish Care.Wallets, purchase Care.Cards, and participate in Care.Marketplace services as well as pay for associated integration fees. In addition, SOLVE is reportedly used for the emission of Care.Coins and payments requiring Care.Coins.'