Proof of existence user guide

3 min readJun 13, 2023

· Introduction
· What I need?
· Create proof of existence

Introduction

Proof of existence is a blockchain-based protocol that proves that a digital document exists at a given point in time. This mechanism behaves digitally like a notary that creates a record of the existence of a document without the need for a third party and in a decentralised manner. The identity of the document is stored on the chain using a hash algorithm with a timestamp of the transaction, providing an irrefutable time-stamped record of the existence of the data. The applications of this protocol are manifold, from notarisation, to protecting intellectual property rights, certifying documents, etc.

What I need?

Any type of digital document that you wish to certify as proof of existence.

Create proof of existence

Go to the Dapp: https://testnet.proof-of-existence.com/

Choose Certify option and click on the Browse button:

Select the file to which you want to assign the existence proof and click on the Create proof button:

If you have Keprl installed, the contract to add the EmpowerChain network to Keprl will appear.

NOTE: if you do not have Keprl installed you can use our Keprl wallet quick installation guide

Once you have added the Empowerchain network you must show it in Keprl, to do this click on the main menu, go to Manage Chain Visibility and activate EmpowerChain Testnet to show the network in the wallet:

If you now try to complete the proof of existence process, it will return an error as we have no funds in the wallet:

To apply for the faucet and get funds to pay the fees you need to copy the address, at the top Copy Address, choose EmpowerChain Testnet:

Go to Empower Discord:

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https://discord.com/invite/DNB4z8EZDx

On the #Faucet channel request your tokens:

Check your Keprl balance:

You can now return to the Dapp to finish the proof of existence process, click on Complete and confirm the transaction by clicking on Approve:

Congratulations, you have finished your proof of existence process, you can now copy the verification link that will serve as proof of the registered document: