Bitcoin SV is a full-node implementation for Bitcoin Cash (BCH) and will maintain the vision of Bitcoin set out by Satoshi Nakamoto’s white paper in 2008: Bitcoin: A Peer-to-Peer Electronic Cash System Reflecting its mission to fulfill the vision of Bitcoin, the project name represents the “Satoshi Vision” or SV. Created at the request of leading BCH mining enterprise CoinGeek and other miners, Bitcoin SV is intended to provide a clear BCH implementation choice for miners and allow businesses to build applications and websites on it reliably. Bitcoin SV restores the original vision to ignite the future of Bitcoin: Bitcoin Cash can replace every payment system in the world with a better user experience, a cheaper merchant cost, and a safer level of security. Businesses can trust the Bitcoin Cash brand to provide the stability and scale they need to commit investment and resources to use the BCH blockchain. The Bitcoin SV project was created at the request of and sponsored by Antiguan-based CoinGeek Mining, with development work initiated by nChain. The project is also owned by the Antiguan-based bComm Association on behalf of the global BCH community, and the Bitcoin SV code is made available under the open source MIT license.
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.