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XYO is a unique cryptocurrency token that operates on the Ethereum platform. It is designed to provide a trustless, cryptographic location network that aims to ensure the accuracy and validity of location data. This is achieved through a novel formulation reliant on a chain of zero-knowledge proofs. The XYO Network, also known as the XY Oracle Network, is an abstraction that enables layered, location verification across various device classes and protocols. At its core, it utilizes a set of innovative cryptographic mechanisms known as Proof of Origin & Bound Witness. These mechanisms combine the power of blockchain technology with real-world data collection, creating a system with direct applications in today's digital world.

The XYO Network operates through four primary components: Sentinels, Bridges, Archivists, and Diviners. Sentinels are responsible for gathering location data and creating a Proof of Origin to be chained to nodes above them. Bridges collect this data from Sentinels and provide them to Archivists, who store this information for Diviners to analyze. Diviners then analyze location heuristics from Archivists to generate answers to queries and assign accuracy scores to them. These answers are relayed back into a smart contract, serving as oracles. The accuracy score, named the Origin Chain Score, is determined through a set of zero-knowledge proofs known as a Proof of Origin Chain. This chain guarantees that two or more pieces of data originated from the same source without revealing any underlying information.

The XYO Network aims to enable developers, such as those writing smart contracts for blockchain platforms, to interact with the physical world as if it were an API. This opens up a wide range of potential use cases. For instance, it could be used to verify the location of a physical item without the need for a centralized third party. This could be particularly useful in supply chain management, where the location of goods often needs to be verified. Additionally, the XYO Network could be used in any scenario where location data is crucial, such as in logistics, retail, and even in personal item tracking.

The concept of the XYO Network was first introduced in January 2018 by Arie Trouw, Markus Levin, and Scott Scheper. The network was built upon an existing infrastructure of over 1,000,000 devices circulating in the world that were distributed through their consumer-facing findables business. In just six years, the XYO Network has created one of the largest consumer Bluetooth and GPS networks in the world. The concept of applying location verification to blockchain technologies first appeared in September 2016 at Ethereum's DevCon 2. The XYO Network has since been working towards enabling developers to interact with the physical world as if it were an API, creating a protocol with novel use cases that have not been possible until today.