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The Evolution of Identity and Metadium’s Role

In our previous post, “So What Exactly Is Metadium?”, we’ve brought up that Metadium’s goal is to become the next-generation identity ecosystem powered by a public ID blockchain platform.

So, what does it mean by a “next-generation” ecosystem? And if Metadium is the next generation identity blockchain platform, how do we understand identity in the present day and how it is being used?

In today’s post, we will try to address these questions to provide you with a better understanding of the background of Metadium’s establishment. In doing so, we hope to explore the evolution of identity and guide you to the direction Metadium is headed towards!

Identity — the set of data that prove who I am — did not always look the way it does now. From tattoos and ornaments of the ancient times to fingerprints and face scans of the modern days, identity has evolved throughout time and history in multiple forms and shapes. The types of identity that we will explore today range from a “paper-based identity” that is familiar to us to a “self-sovereign identity” model which is still under way. Then let’s jump right into the paper-based identity model!

1. Paper-based Identity

From Henry V’s first invention of a passport in 1414 to a driver’s license we use every day in the modern world, paper-based identity has been the most common method for verifying identity. This form of identity has become much more accurate and convenient than the methods of the past, but problems still exist. I’m sure you’ve all experienced that time where you couldn’t buy a beer because you forgot to bring your ID! Such inconvenience of having to carry your ID all the time, and the fact that they can be easily fabricated have highlighted the need for a new model that can make up for the shortcomings of a paper-based identity model.

2. Traditional Digital Identity Model

Traditional digital identities refer to any identities that have been created online, including the usernames and passwords that most of us use on a daily basis. Although digital identities are more convenient to use than paper-based identities, they still have many problems such as the trouble of remembering each and every ID and password we’ve created online. A new “ID provider model” emerged to solve the problem of this traditional digital identity model.

3. Identity Provider Model

The identity provider model refers to the form of single sign-on using data from a main service such as Facebook or Twitter to sign up into another service. I’m sure many of you have been using this feature, as it allows us to easily login to a variety of different sites and applications, eliminating the hassle of remembering multiple IDs and passwords. However, while identity provider (IDP) models are convenient, they also have two major problems.

1) Security

The first problem of the identity provider model is that it is vulnerable to security issues such as data breach and leakage. Recently, the Facebook-Cambridge Analytica data scandal revealed that up to 70 pieces of personal information such as blood type, education, and religion were provided to a third party service. This happening demonstrated that hacking and information leakages are very easy to occur in the IDP model.

2) Sovereignty

The second issue with the IDP model is that the personal data is controlled, stored, and utilized by the identity provider rather than the individual. This makes it very difficult to track where and how one’s personal data is being used, given that our personal information is scattered across the web.

As security risks have become more prominent over the years, the “self-sovereign identity model” has emerged as an alternative to the IDP model.

4. Self-sovereign Identity Model

The self-sovereign identity model is what Metadium is trying to realize in the next-generation identity ecosystem. In this model, the individual can control his or her own identity and personal information through the blockchain technology.

This concept is essential in creating a next-generation identity ecosystem through the public ID blockchain platform. In our next post, we will look at exactly how Metadium can realize this self-sovereign identity through blockchain technology.

If you haven’t read out previous posts — “So, What Exactly Is Metadium?” and “Do You Really Think You Own Your Identity?”, click on the links for more information!

We greatly appreciate your continued support on Metadium, and see you soon in our next story!


Team Metadium



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Metadium powers identification, authentication and crypto transaction management, providing AML compliance and risk management solutions.