Radix (RDX)

Basics

On how: “To achieve speed, scalability, security, and efficiency, Radix has created a combined distributed database architecture and consensus algorithm called Tempo. It is the core module of the Radix platform. It uses vector clocks for generating a partial ordering of events in a distributed system to detect and prevent causality violations.
This system is both “asynchronous”, meaning there is no block time, and byzantine fault tolerant, meaning that it can detect and stop false transactions and double spends within a system that anyone can join.
Tempo does this by preserving the total order of events, allowing for the trustless transfer of value, timestamping and other functionality. It is a semi-structured, shardable architecture that limits state transfer information to only those members of the network that need it. This reduces overhead and increases performance.
It does not require large amounts of computing power (PoW) or large amounts of capital (PoS) to secure it. It is suitable for both public and private deployments, without modification, and requires no special hardware or equipment. Combined with a huge, overlapping shard space, the scalability of Radix is only constrained by the number of Nodes operating within the network.“ https://www.radixdlt.com/faq
At this point not open source. And at this point not decentralized (8-2018)

On token distribution:

“Radix is capable of supporting various types of crypto economic token supply models. These include fixed, linear, pegged and inflationary. Radix Stable Value tokens follow a dynamic inflationary supply, so there is no hard cap.”
“Some of these early contributors to the project will receive a small number of tokens at launch, and Radix will also receive a minority % allocation.
However, most tokens will be available to anyone to buy from the integrated Radix Decentralised Exchange, and we have no wish to be the majority holder of our tokens either now or in the future.“ https://www.radixdlt.com/faq

Hughes, Dan; CTO “has previously built, run and exited 3 successful software startups. Dan has spent the last 6 years building, testing and refining his own DLT protocols, creating Radix in the process.”
Ridyard, Piers; Chief executive officer
Thornton, Stephen; Chief scientist
Rubio, Marc; developer