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.
Merculet proposes a growth methodology based on user attention: Merculet constructed Attention Value Network. This Network connects both the supply and demand sides of attention with an open protocol suite to promote a virtuous circulation of the Internet of Value. On the one hand, it provides diverse methods for user operation. On the other hand, it offers real users and business scenarios for various existing public chain projects, promoting the effective circulation of value. Attention Value Network realizes the value circulation in a distributed commercial society, brings a brand-new production relationship experience to users and entrepreneurs, and re-defines the structure of valuable user traffic. The core components of the project include: 1. User Attention Value (UAV) evaluation system: UAV System effectively evaluates user attention, completes digitalization and capitalization, and provides a proof of effective workload, that is, UAV. It established a long-lasting trust relationship between entrepreneur and user as well as a new mechanism for the community of interests; 2. Attention Incentive system: UAT (User Attention Token), Application Market of Merculet UAT Alliance Entrepreneurs can issue UAT to users based on UAV value. The UAT will be anchoring the basic MVP (Merculet Value Protocol) token, enabling the synergy and the value exchange between entrepreneurs, thus creating an era of the token, which is a means of the welfare, equity, entry admission, and identity. 3. To address the source of user attention, Merculet will provide a blockchain based Merculet Open Content Platform: Based on consensus and driven by token, it will provide a decentralized platform for the entire industry chain globally. It also dedicated to solving the problem of global content circulation brought by cultural differences.