High-Performance Blockchain tackles the concept of scalability from a completely different angle. Rather than just looking at the software side of things, the project also tackles the hardware aspect. To realize the optimal performance of blockchain applications, things will need to change in the near future. As such, this team is building an architecture which uses thousands of CPU and FPGA resources to create a more versatile and scalable ecosystem. There are a few aspects of the High-Performance Blockchain project to take into account. First of all, there is the chip-level acceleration engine which provides accelerated hardware chips to power this entire ecosystem. Secondly, the software side of the High-Performance Blockchain is integrated with the new dedicated hardware accelerated engine and focuses on depth and scaling customization. Third, the project claims it can produce a throughput in the millions of transactions without any major problems. While all of this sounds amazing, it is difficult to come by any real information regarding the technical aspects of either the hardware or the software side of High-Performance Blockchain. While the team mainly focuses on blockchain integration for real-world business cases, it remains to be seen how their chips will operate and how their algorithms are created. It seems the High-Performance Blockchain project is closely connected to the NEO infrastructure, which could introduce some interesting developments down the line. Building the High-Performance Blockchain infrastructure will take a lot of time and money. As such, the roadmap is filled with milestones which the team aims to achieve in the coming years. A testnet version of this project will be launched at some point in 2018, which will undergo further improvements for several months. The actual manner will launch in Q2 of 2018 if things go according to plan. However, the official version will not go live until mid-2019 at the earliest.
Nxt uses the blockchain to create an entire ecosystem of decentralized features, all of which require the Nxt currency. Instead of modifying the original Bitcoin source code, as many altcoins have done, Nxt developers wrote their own code in Java from scratch. While Nxt is a public blockchain, licenses for private blockchains based on its software are also available for purchase. The developers refer to Nxt as Blockchain 2.0, providing numerous applications beyond simply keeping a public ledger of transactions. Jelurida BV took over the originally anonymously developed Nxt and now own the IP rights. Kristina Kalcheva, co-founder and legal expert of Jelurida, focuses on how to “explore the different open source licensing models and their enforceability in practice.” Currently, the main developer is an anonymous Star Trek fan, going by the name Jean-Luc Picard. While there is still the active development of Nxt, the parent company Jelurida is also working on a Nxt 2.0, known as Ardor, designed specifically to deal with scalability. Ardor will use the same blockchain technology as Nxt, combined with the idea of ‘child chains.’ According to Travin Keith, Nxt foundation Web and Marketing manager, Ardor allows for a “manageable blockchain size, which solves the problem of scalability by separating transactions and data that do not affect security from those that do, and moving all of those that don’t affect security onto child chains.” The core infrastructure of Nxt is complex. This adds risks as compared to the more lean bitcoin, but makes it easier for external services to be built on top of the blockchain. A peer-peer exchange allowing decentralized trading of shares, crypto assets. Since the blockchain is an unalterable public ledger of transactions, the Asset Exchange provides a trading record for items other than Nxt. To do this, Nxt allows the designation or ''coloring'' of a particular coin, which builds a bridge from the virtual crypto-currency world to the physical world. The ''colored coin'' can represent property, stocks/bonds, commodities, or even concepts. Arbitrary Messages enable the sending of encrypted or plain text, which can also function to send and store up to 1000 bytes of data permanently, or 42 kilobytes of data for a limited amount of time. As a result, it can be used to build file-sharing services, decentralized applications, and higher-level Nxt services. Nxt had no mining phase, all initial units were released to 73 people through a one-time fundraiser via bitcoins, after the announcement of the NXT project in the bitcointalk-forums by BCnext. Combine this with a PoS approach, and you have a situation where the big guys run the table. At one point, the Nxt community had a very public spat with Bitcoin developer Jeff Garzik. Garzik took issue with the Nxt marketing approach, its anonymous developers, and their responses to constructive criticism. Nxt responded to some of these claims, of course, but it remains one of the more controversial moments in its history. Another key problem the Nxt network ran into (like so many others) was blockchain bloat. Nodes get weighed down by the onerous task of having to store every transaction on the Nxt blockchain. This was one reason (among others) why Ardor/Ignis came into existence.'