10.46243/jst.2023.v8.i03.pp34-53 registered

One major obstacle to achieving the full potential of decentralized systems is blockchain interoperability. The segregated contexts where current blockchain networks function restrict their capacity to trade assets and data safely. This study suggests a unique architecture that uses multi- signature protocols and decentralized consensus techniques to enable smooth cross-chain transactions. The suggested solution solves scalability and security issues while improving efficiency, privacy, and transparency by integrating public and private blockchains. The system guarantees secure transaction validation through adaptive consensus protocols and multi-signature authentication, greatly enhancing interoperability. Compared to traditional models, performance assessments show a 36% increase in transaction speed, a 42% decrease in cross-chain transaction latency, and a 25% improvement in network scalability. According to security studies, blockchain security is strengthened by a 51% reduction in double-spending vulnerabilities and a 40% reduction in transaction failure rates. These findings demonstrate the model's potential to provide a decentralized, trustless marketplace, promoting safe and effective blockchain use across the IoT, healthcare, and financial sectors. The suggested method improves blockchain interoperability by facilitating smooth, scalable, and safe interactions in diverse blockchain ecosystems.