Proof of Existence Using Blockchain

In the past years, we have been hearing a lot about cryptocurrency and Blockchain which has brought new scope and technology into the hands of developers and common man. Blockchain technology was first introduced in a whitepaper which went like this: “Bitcoin: A Peer-to-Peer Electronic Cash System,” by Satoshi Nakamoto in 2008. Though Blockchain being a completely new field, many companies are trying to implement Blockchain too. A Blockchain contains of a block which contains a hash of cryptography of the previous block, timestamp and transaction data. The main purpose of this project is to create a Proof-Of-Existence of any type of file or record on the platform of Blockchain. Once submitted, we shall be uploading the file's unique signature with its associated information into the Private Decentralized Public Ledger. Records stored here can be extracted later to prove that this particular file existed on particular date & time with the associated information uploaded. It is impossible to duplicate the document's signature or modify the past records both technologically and computationally. Therefore POE can be used to prove any file's existence in legal matters. It can also be an important part in any organization which will obviously have records of deals, bonds, customer details, employee details etc which if made to generate a POE for each of them, then will be secure and safe because this is something which cannot be hacked.