Particl is an open-source and decentralized privacy platform built on the blockchain specifically designed to work with any cryptocurrency. It allows decentralized applications (Dapps) of all sorts to be built within a secure, highly-scalable environment and be integrated directly into Particl’s flagship wallet: Particl Desktop Particl's mission is to foster a new decentralized, private and democratic economy supported by its platform and native currency (PART). All the fees generated by the platform are paid to the PART coin holders who are securing the network. PART is a privacy coin built from the Bitcoin Core codebase and is always updated to its latest version (currently 0.16.0). Capitalizing on the latest Bitcoin codebase not only allows the Particl platform to benefit from both Bitcoin’s stability and security, but also enables developers to leverage and easily fork any product, service and technology development from the Bitcoin developer community. Particl Cold Staking is enabled by smart-contract functionality and lets users securely delegate staking powers to “staking nodes” which contain no coin. The purpose of these “staking nodes” is to provide a dedicated resource connected to the Particl blockchain and stake on behalf of another wallet without being able to spend its coins. In other words, it allows users to stake offline coins. Particl's decentralized marketplace is built with privacy at its core and offers a low-cost, secure and scalable e-commerce experience. Designed to work with almost any coin, it uses several privacy-enhancing features such as default private transactions, encrypted data, secure messaging, IP address anonymization, metadata stripping, private listings and more. It is exclusively governed by the Particl community which also earns all the fees generated by the marketplace. Particl is designed so that users can easily use and build decentralized applications that can then be integrated directly into Particl Desktop. These applications foster the decentralized, private and trustless Particl economy and are built using native privacy smart-contracts. PART can be sent as three different privacy states, each with their own degree of privacy and cost: Public, Blind, Anonymous. Each state has a purpose within our privacy platform and also provides the user full control of the linkability and traceability of their transactions. Particl is the first coin in history to deploy these privacy protocols on a Bitcoin Core codebase. The Particl platform accepts a wide range of cryptocurrencies and provides maximum privacy at the same time. By using atomic swaps and third-party integrations, all incoming currency transactions are automatically converted into PART, Particl’s native currency. This way, you can use your favorite cryptocurrency while being protected by PART’s powerful privacy features.
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.'