In this post, we cover Decentralized Identifiers (DIDs) in Blockchain. Previously I have covered [Automated Market Makers](https://leofinance.io/@esmeesmith/what-are-automated-market-makers-amm). 

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![did.png](https://i.imgur.com/YXuMYHt.png)

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## Introduction

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Digital identity is a new identity establishing concept that has been introduced to address various identity related issues that appear in the world of blockchain, governance and compliance. 

W3C that sets the standards for the web has created a [draft](https://www.w3.org/TR/did-core/) that is meant to be implemented in coming future for the web3. The partial implementation is already on it's way with the various blockchains and the decentralized groups around the world. 

This implementation makes use of a concept called Decentralized Identifiers. We are going to take a look at what that is and how does it work. 

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### What is a Decentralized Identifier?

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Decentralized Identifier is a unique identifier built on the distributed and decentralized ledger, reducing the need for the centralized authority and network. 


![DIDsyntax.jpg](https://i.imgur.com/KpLOUDd.jpg)
Image Credit: [evernym](https://www.evernym.com/)


There is a provision of the public DID and private DIDs. Both of them point to the DID document which holds the data specific to the person's unique identification. 

These DID documents can be used to restrict persons private information. And a person can use DID document in order to limit it's exposure to certain networks or the authorization from having access to their entire data. 

Blockchains who implement this type of the decentralized identity solution would also enable data registry where the public and private DIDs are likely to be verified. No personal data is stored on blockchain instead the issuer's public DID is added into the ledger. 

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### Why is Decentralized Identifier important to us?

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Decentralized identifiers can be used for identity verification on social sites, they can be used for compliance and even used for going through legal and govt authorization without having to give up your privacy. 

Frauds from the company and user relation can be minimized when the DID is used as it would harder to fake the persona on the blockchain. 

Identity theft that happens with the usernames and the specific set of people can be easily minimized using the digital decentralized identifier. 

Unlike end to end encrypttion in many social networks and their messengers where they can still eveasdrop your content, here DID offer you better channel of communication from both ends for secure communication. 

They are decentralized on the ledger of most of the blockchain. Which makes it easy to trust that they are not being controlled by one organization or the govt for their own benefit. 

User personas can be tied to such DIDs and they can create as many as they want and offer only the data necessary between the two parties. This way they can avoid data being related and being profiled for ad parties or political manipulation. 

Digital identifier is under control of user and they can choose what to add and remove. Here no party is being forced to add specific data into the DID for the user or particular set of people. 

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### Which Blockchains are being used for the Digital decentralized identity?

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As of now the Ethereum blockchain is dominating this use case. However blockchains like Polkadot, Binance smart chain are not far behind in adoption of this use case scenario of the blockchain. Even scam blockchains like mannabase which mostly burn the VC funding are likely to use digital identity solutions to bring clarity to their project. 

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### Conclusion

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Decentralized Identifiers (DIDs) is something every blockchain user would eventually be exposed to as the more decentralized projects implement identity solution. By enabling decentralized identity solution this would also help many projects have more credibility and compliance in their process. 


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