MUMBAI, India, Aug. 12 -- Intellectual Property India has published a patent application (202641092320 A) filed by Vardhaman College Of Engineering on July 30, 2026, for A System And Method For Blockchain-Based Secure Data Sharing And Verification.
Inventors include Dr. S Srinivas Reddy; Ms. Bandar Vaishnavi; Ms. Tirunagari Sharanya; Mr. Sd Ahmeduddin; Dr. E. R. Aruna; and Dr. Nagireddy Hanuman Reddy.
The application for the patent was published on August 07, 2026, under issue no. 32/2026.
Abstract: ABSTRACT A System and Method for Blockchain-Based Secure Data Sharing and Verification The present disclosure relates to a system and method for securely sharing and verifying context-bound fragmented data over a blockchain network. The processor builds a sensitivity-dependency graph of the received data object, breaks it into semantic fragments, independently encrypts each fragment using epoch-specific keys, and distributes erasure-coded shares across different storage domains. Each fragment is bound to an object version, policy epoch and dependency state by a commitment root. For an access request, the processor creates a proof capsule, consisting of a freshness nonce, a requested-fragment mask, a device-attestation commitment and a non-revocation witness. The capsule is verified by an adaptive quorum of validators, based on the sensitivity of fragments, network threats, and diversity of failure-domains. Successful verification causes the blinded key shares to be moved to a hardware-protected environment that reconstructs only authorized fragments in volatile memory and destroys temporary keys. Cross-epoch verification prevents replay, rollback, and mixed-version reconstruction Fragment rekeying reduces computation, network traffic, and storage rewriting after revocation.
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