Radix . Radix . Radix is . Radix . is not a blockchain is not a DAG trustless and decentralized supports smart contracts I have no vested interest in Radix, I am just fascinated by the project. is a speedy and scalable alternative to Blockchains and DAGs. As a formal definition Radix is a (DLT). Radix public trustless decentralized ledger Think of it as a (the data structure is called “Tempo”) that is based on a consensus protocol completely different from anything you saw before: . Blockchain without blocks logical time Prior to the creation of Radix, the predominant technology for building and deploying DLT was , a technology that allows many computers to agree on a single version of events, without any center to the system. blockchain But and some of them are hard to solve. Blockchains have problems Blockchain problems 1) Scalability The blockchain is a powerful concept as there is no one place to attack or disrupt. It provides certainty of data integrity, and trust in the transactions conducted using it. Unfortunately, it has a major drawback — . it does not scale very well 2) High risk of centralization The second big problem with Blockchain indeed is the high risk of centralization caused by dangerous consensus protocols. The consensus protocols are the basis for trustless and decentralized DLT, but at the same time**, each consensus protocol carries with it different potential dangers.** For example, the PoW is both enormously inefficient and safe only as much as half of the total amount of computing power is used. This can be effective for large networks where there are clear economic incentives to provide ever-increasing amounts of computing power, such as Bitcoin, but they do not work well for small or private networks where it is easy to get more than 50% of the computing power of the network. Not to mention the large that PoW brings with it. energy consumption , other consensus protocols have been created, of which the most used ones are the To overcome the problems of scalability and excessive energy consumption “proof of stake” (PoS) and the “delegated proof of stake” (DPoS). The problem is that all these consensus protocols, in the long run, centralize power: to date indeed . no Blockchain is 100% decentralized Why decentralization matters? However, this is at the cost of each participant who must be held responsible. Decentralization avoids the abuse of power by central authorities. for the first time ever in a meaningful way we have the ability to create unique digital objects that can be handed from one person to another. For the first time ever we can do that. Moreover, And what did we do first? We created cryptocurrencies, an entire system of value where the value transfer does not need banks or intermediaries. DLT is an innovation that allows you to treat the , as something that you can build right into your coding stack and that’s super exciting. For the first time ever in a meaningful way, we are handing people the tools for their own digital identity and digital sovereignty. creation and transfer of value as a developer tool The ability to create logical statements that you know for a fact that once put on the ledger are going to execute exactly how you set them out to do so.And that’s the last bit, the smart contracts, the logical statements on the ledger, the decentralized applications. Those are the bits that have the farthest to go. The ones where greatest hopes relies and also the greatest uncertainty. And here’s the kicker, the last bit: programmability. I do not yet know how they are going to change the world, but they will. Goodbye Blockchains, Welcome Radix! And here comes Radix. Radix is the result of 6 years of research and development and is the solution to the problems of scalability and decentralization exposed before. Radix is a DLT that is not a Blockchain and is not a DAG but has a completely innovative structure all of its own (Tempo) and a consensus method that allows Radix to create an system for shared storage and access to data. extremely secure and scalable : linear scalability, developer delight, and true decentralization. Radix has three guiding principles 1) Linear scalability Anything short of that and you have not got a protocol that the world can rely on. To serve the world you must be able to scale to every single person and every single device simultaneously without bottlenecks. That would need to both be incredibly easy to index (to make the data structure usable), and (cut into fragments) so as the demand of the network grew, more computers could be added to increase the throughput of the network. massively sharded Radix team realized that cutting up the data ad-hoc would not work. Instead, you need to already know how the data will be cut up. without having to re-index every time large amounts of new data is added. They achieved that by . They then use key reference fields, such as a public key, as a way of determining where in that shard space a particular piece of data lives. You should be able to look at any piece of data and know where it lives in the data structure pre-cutting up the data structure of the platform into 18.4 quintillion shards The result of this innovation is a data structure that is able to scale linearly, without overhead, from tiny data sets to ones large enough to serve every person and business in the world. 2) True decentralization **No masternodes, no staking, no central council, no coordinator.**If your protocol doesn’t work without a center then you are not building a platform for the world, you are just building a platform administered by a company. Radix solves the problem of centralization by creating a permissionless consensus system that can be used securely in both small and large networks, secured by : In addition to this, unlike other DLT systems, it does not apply consensus to every event, only to those that conflict. a property that cannot be trivially bought or faked within Radix the passage of logical time. This allows the entire system to be incredibly efficient, even at massive scale. The passage of logical time relies on a concept called — in very simple terms, a logical clock is a counter. Each node on the Radix network has its own logical clock that it maintains. The only rule it must follow is that it must strictly count upwards only and has to increment by 1 its counter every time the node see an event. logical clocks In Radix, this counter is triggered for a node when it sees a valid event it has never seen before. The node must simply check its own database, then increment its logical clock, stamp the event with the new timestamp and ID and then . Periodically it must make to make sure it cannot lie about the order of historical events. gossip it to the network commitments This passive consensus mechanism is both very reliable and incredibly power efficient as no extra energy is expended apart from to resolve conflicts. 3) Developer delight Radix’s mission is to give to developers the very best tools to build and deploy DApps (decentralized applications). The internet was an enabling technology. Radix is an enabling technology to enable anything people have to build with. The Radix platform is now in the Alpha stage of development, with a live Alpha testnet that you can connect to and try building against. Find out more here: https://www.radixdlt.com/developers And start building here: https://github.com/radixdlt/ Why Radix is so cool? Where every person can be part of the consensus mechanism of the cryptocurrency or of the community in which they believe, almost without even noticing it. To date, it is not possible: in order to be a miner of some currency you have to spend a lot of money and you have to be an expert. Imagine a world where every device, phone, modem or television can mine. With Radix instead, all this will be possible. It will be easy to mine and will be accessible to everyone: to mine you will not need to have more computer power than your “neighbor”, simply Thanks to the technology behind it you will not need any expensive tool, just a phone with the app on it. you will be chosen randomly and all sooner or later will be chosen. A future where everyone has a voice. A green and eco-friendly future. A future where all these billions of devices we have are starting to make sense, where people from all over the world come together to create a global decentralized computer with unimaginable power. This is the future towards which we must go against: a future where decentralization is true and not just a slogan. Resources Radix blog: Radix Alpha presentation: Radix whitepaper: Radix Telegram Group: https://www.radixdlt.com/blog https://www.youtube.com/watch?v=7xc9TNKMNLY https://papers.radixdlt.com/tempo/latest/ https://t.me/radixdlt

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