Zcoin (XZC) is a cryptocurrency focused on privacy and decentralization. It is the first coin to implement the Zerocoin protocol that enables financial privacy through the power of zero knowledge proofs with a focus on making privacy easy to use. It is also set to be the first to release MTP an ASIC resistant, anti-botnet proof of work algorithm that remains lightweight to verify to ensure fair distribution of coins and decentralized security. Zcoin is an open source decentralized cryptocurrency that focuses on achieving privacy and anonymity for its users while transacting. To achieve this privacy and anonymity, Zcoin uses zero-knowledge proofs via Zerocoin protocol which is one of the most cited cryptography papers at this point in time. In other words, when you transact using Bitcoin or Ethereum or something similar, your transaction history is always linked to your coins by default which makes you vulnerable. That, because all it takes is one link to your personal information or IP to find out the origin of the coins.However, if you transact using Zcoin’s Zerocoin feature, none of your transaction histories is linked to the actual coins and only the receiver and sender know that you have actually exchanged funds. Zerocoin is a cryptocurrency proposed by Johns Hopkins University professor Matthew D. Green and graduate students Ian Miers and Christina Garman as an extension to the Bitcoin protocol that would add true cryptographic anonymity to Bitcoin transactions. Zerocoin was first implemented into a fully functional cryptocurrency released to the public by Poramin Insom, as Zcoin who is also the lead developer, in September 2016. At the initial stage, Zcoin uses the Lyra2z algorithm for proof of work, then they will transition to a Merkle Tree proof of work algorithm, known as MTP. MTP is a unique memory hard algorithm that aims to solve several problems. Memory hard algorithms help prevent the development of ASICs which lead to centralized mining farms. Memory hard algorithms also prevent the use of botnets infecting computers for mining purposes. If a botnet was using up multiple gigs of memory, you’d be likely to notice something is wrong. “The basic concept is that it should establish the same price/cost for a single computation unit on all platforms meaning that there is no single device that should gain a significant advantage over another for the same price hence promoting egalitarian computing.
Project PAI is an open-source blockchain project developing the world's first blockchain-based platform for intelligent 3D AI avatars. Personal AI (PAI) looks, talks and behaves like the individual user and, when secured and authenticated on the blockchain, allows for unprecedented customization, utility and personal data control. With communities worldwide and adopters including leading U.S. AI company ObEN Inc., Project PAI is rapidly advancing its vision of allowing everyone in the world to participate in the new global humanistic AI economy. Project PAI's independent blockchain platform is intended to allow users to create, own and manage their digital identity and the associated data, letting users participate in a new global humanistic AI economy where they are the owners of their own digital identity and data. The listing on HBUS marks another step in Project PAI's growth throughout the U.S. and global market. Project PAI's vision is to create a platform where everyone can create their own Personal AI, intelligent digital avatars that look, sound and behave like them. With PAI, users can have more personalized digital experiences, including using their PAI for social media content or interacting with the PAI of their doctors, teachers or even their favorite celebrities across a number of applications in retail, entertainment, travel and more. The core technology for the avatars is powered by Project PAI early-adopter ObEN, a leading artificial intelligence company based in Los Angeles, California. PAIs are secured and authenticated on the Project PAI blockchain. The intention is to always allow the user to be the owner of their own data and if they choose to contribute that data to improve applications or AI algorithms on the PAI blockchain, they can be compensated for their efforts in PAI Coin. In addition, as an open-source public blockchain, companies and developers can create their own apps and tokens on the PAI blockchain to build more interactions for the Project PAI community. Already this year, Project PAI has launched both its mainnet and github. A third-party-developed digital wallet for PAI Coin, called PAI Up, is also available globally on both iOS and Android. The project has recently expanded into the Southeast Asia, U.K. and European markets, following solid presence in China, Japan, Korea and the U.S.