Nano, a low-latency cryptocurrency built on an innovative block-lattice data structure offering unlimited scalability and no transaction fees. Nano by design is a simple protocol with the sole purpose of being a high-performance cryptocurrency. The Nano protocol can run on low-power hardware, allowing it to be a practical, decentralized cryptocurrency for everyday use. The original Nano (RailBlocks) paper and first beta implementation were published in December, 2014, making it one of the first Directed Acyclic Graph (DAG) based cryptocurrencies [6]. Soon after, other DAG cryptocurrencies began to develop, most notably DagCoin/Byteball and IOTA. These DAG-based cryptocurrencies broke the blockchain mold, improving system performance and security. Byteball achieves consensus by relying on a “main-chain” comprised of honest, reputable and user-trusted “witnesses”, while IOTA achieves consensus via the cumulative PoW of stacked transactions. Nano achieves consensus via a balance-weighted vote on conflicting transactions. This consensus system provides quicker, more deterministic transactions while still maintaining a strong, decentralized system. Nano continues this development and has positioned itself as one of the highest performing cryptocurrencies. Nano is a trustless, feeless, low-latency cryptocurrency that utilizes a novel blocklattice structure and delegated Proof of Stake voting. The network requires minimal resources, no high-power mining hardware, and can process high transaction throughput. All of this is achieved by having individual blockchains for each account, eliminating access issues and inefficiencies of a global data-structure. We identified possible attack vectors on the system and presented arguments on how Nano is resistant to these forms of attacks. Check out CoinBureau for the complete review of Nano.
Rocket Pool is a next generation decentralised staking network and pool for Ethereum 2.0 Rocket Pool is a self-regulating network of node operators; it automatically adjusts its capacity to match demand. The Rocket Pool protocol token is used to maintain an optimal capacity by: Increasing capacity when needed, by incentivising node operators to join. Decreasing capacity when not needed, by disincentivising node operators from joining. In addition to depositing ETH, a node operator is required to deposit a set amount of RPL per ether they are depositing. This RPL:ether ratio is dynamic and is dependent on the network utilisation. E.g: If the network has plenty of capacity, then node operators need more RPL to make deposits. It gets progressively more expensive in terms of RPL to make node deposits when the network does not have enough ETH from regular stakers to be matched up with node operators. This helps prevent several attack vectors outlined in the whitepaper and keeps assignment of ether ‘chunks’ to nodes quick. If the network is reaching capacity, then node operators need less RPL to join as the network needs more node deposits to be matched up with regular users deposits. If the network is maxed out and needs node operators to join quickly, it even drops to 0 for the first one to make a deposit.