BlackCoin started of as a Proof of Work coin but has evolved to a unique version of Proof of Stake. Wallet users can unlock wallet for staking only. BlackCoin features the following specifications: - Extremely secure: Among first with fix on SSL heartbeat, Transaction malleability, BIP66 - The probability to sign a block and the block reward does not depend on coinage (anymore). - Recommended confirmations: 10, maturity: 500 - Minimum transaction fee: 0.0001 BLK - Defined block time target: 64 seconds - Max reorganization depth: 500 blocks - Inflation: about 0.95%. - PoS block reward: 1.5 BLK + fees - The accumulated reward is proportional to the total balance and the time of staking. 24/7 staking at current network weight leads to an expected reward ratio (interest rate) of about 5%. - BlackCoin rewards users who supports the blockchain through continuous staking.
V.SYSTEMS is a blockchain infrastructure provider with a focus on database and cloud services. Powered by the Supernode Proof-of-Stake (SPoS) consensus algorithm, each supernode is elected in a decentralized network according to Proof-of-Stake (PoS) principles, providing high performance minting, transaction processing and smart contract functions. VSYS is the native currency for the V.SYSTEMS blockchain platform with a multitude of uses including transactions, staking and minting on the network. V.SYSTEMS aims to deliver decentralized cloud database technology with high scalability, durability and performance. With Sunny King as the lead architect, V.SYSTEMS has already designed and implemented SPoS Consensus, a super efficient distributed consensus algorithm with the highest resistance to 51% attacks. The network plans to operate as a cloud platform based on modular systems that can support efficient and agile development of a vast variety of applications including but not limited to finance (DeFi), entertainment, social network and many more.