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.'
Stratis is a powerful and flexible Blockchain Development Platform designed for the needs of the real world financial services businesses and other organisations that want to develop, test and deploy apps on the blockchain. Stratis significantly simplifies the development process for creating Blockchain applications and accelerates the lifecycle for Blockchain development projects. Stratis private chain allows businesses to deploy their own customise blockchain without the costs of running their own blockchain network infrastructure. The vision of the Stratis platform is to become a one-stop shop for all blockchain things, mostly becoming a blockchain-as-a-service (BAAS) platform. Technology-wise, it is a clone of Bitcoin’s core code, with a few enhanced features and written in C# language instead of C++. The team is based in the United Kingdom but has a decentralized structure with members spreading across the world. Several people on their management team are well-versed in enterprise software development using .NET and C# – a positive sign considering those are the project’s two primary languages. Chris Trew, the founder and CEO, has over 10 years of experience in enterprise IT and was a volunteer developer for the Blitz project. Stratis is competing against other BaaS projects in an increasingly saturated but gigantic space. Lisk may be the largest direct competitor in offering sidechains for businesses. However, Lisk is written in Javascript (not C#) and has sidechains that are more publicly available. The decreased privacy may be a turnoff to corporations looking to keep their code proprietary. The company held an ICO in June 2016 and manage to raised 915 Bitcoin.