Enhancing State Integrity and Validation in Hyperledger Fabric with Certification Blocks and Patricia Merkle Tries

Hyperledger Fabric is an enterprise-grade permissioned blockchain operating system that uses an innovative execute-order-validate architecture. This architecture combines active-active and active-passive replication methods, allowing for exceptional transaction processing scalability. To maintain consistency, Hyperledger Fabric uses optimistic concurrency control, a validation method that occurs after blocks are formed and emitted. This approach sets Hyperledger Fabric apart from other blockchain systems, as it does not rely on a validated ledger. However, since peers do not communicate, there is no way for them to check whether the validation results across all network peers are identical. We suggest an algorithm and design to enhance the existing execute-order-validate architecture to address this issue. This enhancement will enable peers to ensure consistency in the validation results and identify points of divergence within the state. It will also increase client awareness of potential issues and reference where inconsistencies have occurred.