Background Verification of Employees using Blockchain

With the ever changing job market, finding a position in a corporation is exceedingly difficult. In order to get a job, people often tend to alter information on their curriculum vitae (CV). As a result, organisations use screening techniques that are incredibly expensive, time-consuming, and ineffective. We present a working prototype of a remedy that resolves this problem by saving and exchanging a job applicant's original documents across a consortium blockchain (Hyperledger). Using blockchain enhances the security, immutability and authenticity of data simultaneously reducing any scope of data alteration close to zero. We have explored two methodologies for storing data on blockchain namely, hashing the document, and saving the document in JSON format in the form of private data. Hashing guarantees privacy of user data and prevents any data exposure in case of security breaches. The latter method involves storing the document in private data and additionally allow users to restrict access rights for others, thereby ensuring the privacy of user data.