Metadium is the next-generation identity protocol layer for the Internet age, powered by a blockchain with "trustless dependencies". It supports decentralized digital identity and serves as the powerful core of the Metadium ecosystem, providing a secure next-generation identity authentication system. This Meta ID enables users to truly take ownership of their identities, and self-sovereign identities are born. The META token powers an entire ecosystem that will be used to create an advanced distributed identity infrastructure fully compatible with modern life. The main purpose of the META token is to act as a medium of identity exchange, which can be used to use authentication services and reward users.

Project Features

1. Protocol Baseline. Trustless Dependencies
The "trustless dependencies" used by Metadium are powered by the blockchain. As a decentralized ledger, the blockchain has the property of "trustless dependencies", which means that it is free from the control of centralized institutions. Despite the rapid growth of the Internet and online communities, identity information on the Internet has been relatively neglected. Our PKI-driven identity ecosystem poses a challenge to the current status of centralized identity information; Metadium uses the protocol-baseline ideology to cultivate a benign identity ecosystem, which can provide trusted distributed identities online, so that we no longer need centralization authority.
2. Decentralized PKI
Although public key infrastructure (PKI) is still in operation and is considered an advanced identity system, it is managed by a centralized authority (CA) Managed identity maintenance often leads to questions about data ownership and, potentially, trustworthiness. CAs are tasked with preventing data loss and leaks, and until recently, users had no choice but to trust CAs.
Unfortunately, entrusted data can be compromised, leaving companies and individuals exposed or compromised. These pain points have also brought huge economic and social losses to CAs, forcing them to spend a lot of time, energy and money to prevent losses and related scandals.
"Trustless dependencies" means managing identities without wasting effort or money. Metadium's decentralized PKI (dPKI) enables individuals to safely trust the integrity of their virtual identities. With Metadium, companies and individuals take ownership of their personal data and control how, when and with whom they share it.
3. Data ownership and identity self-sovereignty
Withdrawing identity sovereignty from centralized institutions, private data can be distributed transparently and securely, allowing absolute control over the use and distribution of personal digital assets . This means that individuals have the power to choose when and how their personal data is used. Likewise, service providers or third parties may not exploit the data without permission.
Metadium's self-sovereign identity ecosystem enables users to preserve their pseudonym while verifying ownership and rights. The platform does not reveal users' worldly identities and private data without their permission. By implementing self-sovereign identities, each individual or user can share the same preferences or affinities among several digital identities.
4. Rules
Regulators have raised concerns about the adoption of blockchain technology because of its support for pseudonymity and "trustlessness". In response, Metadium can police the blockchain without compromising the ethos of pseudonymity and trustlessness.
Unregulated systems or infrastructures are not lightly accepted by key players in business. Despite the high level of trust and transparency of blockchain technology, tracking malicious behavior can be difficult. Of course, some resistance stems from a lack of understanding of blockchain technology. In this sense, with a deeper understanding of blockchain technology, part of the problem will be solved
The development of Meta ID also involves creating a more inclusive and efficient system. Incorporating trustless blockchain technology into the regulatory process can reassure individuals and organizations and encourage mass adoption. Metadium can actually use the blockchain for convenience, not just trading their own value. This means that users in the Metadium ecosystem can decide to add value using either regulatory-compliant proof of identity or self-sovereign identity.
5. The "Identity" of Things
Until recently, identity-related infrastructure was more about qualifications" and "purpose" than the intrinsic value of identity information or self-awareness ...of course there is some identity infrastructure dedicated to value addition and preservation, and Intellectual Property (IP) rights often include elements of DoT (DoT). However, IP is more likely to focus on protecting economic value or a person's exclusivity over things .With the development of technology, the realization of identity authentication in IDoT devices, logistics, robots, artificial intelligence and smart cities will increase the need to share and access information, and will spontaneously generate identification to devices and operation objects. For example, Mass distribution of passports to meet growing transport requirements.
6. Authentication and Verification
Although similar in meaning, verification and certification are quite different elements. Although verification can be More in line with public perception, but proof requires a third-party notary or other recognized intermediary. For example, the verification process adds value to pseudonymous identity, relational identity, or thing identity. However, in the face of stricter information requirements, Or when we need to reflect the rights or authenticity of the identity, we need to prove it.
Various authentication links in real life, such as the fulfillment of obligations or the rights owned, also need to be proved. Metadium supports proof and verification process, creating an overall identity through Meta ID.

Project structure

1. Meta Governance
The META consensus algorithm utilizes a modified RAFT consensus algorithm with Proof of Authority. Different from the general situation, the two pillars of the Metadium blockchain that maintain Meta ID and DAPP are:
The community pillar is managed by representatives voted by the community.
Block Producer Pllar is regulated by the authorities, certified to act reasonably and designated for securing the network.
These pillars along with identity and dApps sustain the upper half of the architecture in two ways:
The META token is the crypto-catalyst network, which can be described as the fuel for the protocol that powers the identity infrastructure. Users of this ecosystem use METAToken to access the network and also use identity-related functions such as creating or updating their own Meta ID.
Participants in Metadium block producer pillars
Block producers (nodes) have only permissions that are recognized or specified by Metadium. Block producers are incentivized and rewarded for producing blocks and securing the network. They prove network security through a high-performance authorized meta-consensus algorithm - a change in the RAFT algorithm.
Becoming the backbone of the Metadium community
Users are the subject of identity. Any principal with any form of identity can be a user of Meta ID. Meta ID can be used not only as a personal ID, but also as an ID for equipment, IDoT, content, and any subject that requires digital identity management for the basic infrastructure of identity.
Certification authorities are providers of legitimacy in a trustless blockchain environment. Users can authenticate their identities through certification agencies (including notaries, financial institutions and other qualified parties). Only qualified organizations can serve as certification bodies for the Metadium blockchain.
Service Providers consist of parties that require the identity of the user. Service providers can provide services through the Meta ID smart contract through dApp, which can be used to identify the user's Meta ID.
2. META Economics
As an identity blockchain, Metadium enables parties to join the Metadium ecosystem seamlessly. The ME TA token powers the entire ecosystem that will be used to create an advanced distributed identity infrastructure fully compatible with modern life.
From the perspective of the network, META tokens can be regarded as transaction fees. Every activity will be accompanied by payment of transaction fees. These fees will prevent transaction overflow and DDoS attacks, and these transaction fees will be rewarded to mining nodes in exchange for network security.
The main purpose of the META token is to act as a medium of identity exchange. Participants on the Metadium blockchain will spend META tokens to use authentication services. Attestation services are available to individuals when they want to link or update common identity data to their digital identity. The certification authority will verify the identity data of the participants and earn META tokens for activities that provide trust on the chain. Each attestation agent will act as a trusted bridge to this network.
Service providers are the ones requesting identity information and will reward users with META tokens in exchange for using identity data. The amount of META tokens awarded may vary with the type of identity data. Certification bodies can use META tokens for partnership or marketing purposes. Service providers can advertise certain proof agents on their dApps.
3. Implementation of the method
CRUD operation and undo and restore
Users will be able to create Meta ID anytime, anywhere without boundaries. The requester of the user's Meta ID can only read private data if the user agrees to view the information.
Requesters are only granted access to view selected private data with user permission to ensure data privacy. The owner of the Meta ID can update the state of their identity, but new private data requiring proof must be reapplied to the Meta ID.
The Metadium protocol supports the revocation and restoration of Meta IDs to prevent the disclosure and unnecessary use of someone's identity. Users can also back up and restore Meta ID in case they lose control of their identity.
A human-friendly human identity authentication solution
While great efforts have been made to protect users from fraud and malicious hackers, browsers and online Certificates cannot review every web page, blind spots do exist, and these problems can eventually cause certificates to lose their trustworthiness.
For users, Meta ID's verification interface is very user-friendly, which includes a mobile application and a reputation system. This reduces human error and phishing issues. The reputation system can also defend against malicious attacks on legitimate websites. Metadium's decentralized PKI can be associated with smart devices, QR codes and even FIDO data.
In early 2018, a phishing website pretended to be Binance, the most famous cryptocurrency exchange. This fake website uses URL visual spoofing to trick victims. If users had double-checked the details, they probably wouldn't have been fooled. However, this simple unic pde encoding trick fools a lot of people. Metadium's reputation system and cognitive-friendly approach prevents this social and economic loss.
The identity of the regulated decentralization movement
As a regulation-compliant blockchain protocol, Metadium enables security tokens and decentralized exchanges to scale to meet regulatory requirements. Project teams that provide security tokens can gain access to users who have been identified using Meta ID, allowing them to securely provide the qualifications and private data needed to meet regulatory requirements. Decentralized exchanges can also request minimal information from users to ensure a robust fiat-gateway encrypted exchange.
Authoritative
Metadium's protocol is a highly scalable and sustainable blockchain. Through meta oracles, communication between external blockchains and cross-chains can be achieved. In addition to real-world data, Metadium bridges the blockchain-to-blockchain gap in addition to Oracles.
Tokenization of Identity
Meta IDs can be tokenized by users to demonstrate authority to execute or make decisions. For example, if Bitcoin creator Satoshi Nakamoto were actually a group of people, each participant in the group would have a percentage of Satoshi's tokenized ID. To show relationships between loved ones or social circles, Meta IDs can be shared by certain people.
ID-only blockchain
Metadium is an ID-only blockchain. Users can use our app on their smart devices and enter FIDO data for authentication, verification and proof. Meta ID prevents fingerprinting without the owner's permission, preventing malicious attacks on their identity. Metadium's security and value-added identity system makes it the most advanced identity protocol in the blockchain.
Technical Execution and Intellectual Property
Metadium has entered into a technical partnership with Coinplug Inc., the world's top player in blockchain-related patents.
Through this inspiring partnership, Metadium is recognized as one of Coinplug's key patents in the field of verification and identity.

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