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.
OKEx, the 2nd most popular cryptocurrency exchange by trading volume, launched its platform token ‘OKB‘ today with 10 trading pairs. On its official support page, OKEx describes OKB is a global utility token issued by the OK Blockchain Foundation. The total available supply of OKB will be one billion tokens (1,000,000,000), with a distribution model that allocates 60% of the supply will be given out to OKEx customers for community building and during marketing campaigns. According to OKEx, the company had officially issued OKB on ERC20 protocol earlier this month. The company denied ICO (initial coin offering) and public fundraising. Reportedly the company had stated that it would be soon shifting the token to its official OK chain and subsequently it will be applied not only on OKEx’s platform but also on other related projects. There will be in total 1 billion tokens supplied globally out of which 600 million coins will be distributed to OKEx customers for community building and marketing campaigns. Rest will be locked up for a period of 1 year to 3 years. According to OKEx, the company had officially issued OKB on ERC20 protocol earlier this month. The company denied ICO (initial coin offering) and public fundraising. Reportedly the company had stated that it would be soon shifting the token to its official OK chain and subsequently it will be applied not only on OKEx’s platform but also on other related projects. There will be in total 1 billion tokens supplied globally out of which 600 million coins will be distributed to OKEx customers for community building and marketing campaigns. Rest will be locked up for a period of 1 year to 3 years.