BLOCKVISA: A Blockchain-Based System for Efficient and Secure Visa, Passport, and Immigration Verification

In the fast-changing landscape of global mobility, the need for secure, efficient, and interoperable visa, passport, and immigration verification systems has never been higher. Traditional systems are inefficient, have security vulnerabilities, and exhibit poor interoperability. This study introduces a novel approach for the blockchain solution in passport verification inefficiencies-BLOCKVISA. BLOCKVISA, in its nature, uses decentralized and immutable blockchain technology to make the system more secure, automate the verification process, and ensure data sharing frictionlessly across jurisdictions. Core components of the system include smart contracts developed in Solidity, a user interface (UI) created with Next.js, and integration with MetaMask and Web3.js for safe interactions with the blockchain. Rigorous testing was done using Mocha, and more intensive benchmarking was done using Hyperledger Caliper against Ganache, Hyperledger Besu, as well as all the test networks, that is, Rinkeby, Ropsten, Goerli, Kovan, among others. Experiments showed that with BLOCKVISA, high throughput and low latency in controlled settings can be achieved, with almost perfect success rates being recorded. It also gave insights into how it would perform even better when deployed on a public network. The article undertakes a comparative analysis of performance metrics, brings out robust security features of the system, and discusses its scalability and feasibility for real-world implementation. By integrating advanced blockchain technology into the visa, passport, and immigration verification process, BLOCKVISA sets a new standard for global mobility solutions, promising enhanced efficiency, security, and interoperability.