Autonomous Digital Cheque Transmission Protocol for Intermittent Connectivity Agricultural Markets

Abstract

This study addresses the critical challenge of securely transmitting digital cheques in blockchain-based agricultural platforms operating under intermittent connectivity constraints, particularly in Guinea, where only 34% of the population has access to the Internet. We propose an innovative protocol that cryptographically embeds the seller’s address into the digital cheque signature, thereby creating an autonomous notification system independent of external communication infrastructures. The approach introduces three key innovations: address-integrated signatures, asynchronous validation protocols, and distributed notification mechanisms operating directly on the blockchain. The experimental implementation employs Ganache as an Ethereum simulator with a React.js DApp interface, enabling buyers to issue cryptographically signed cheques and sellers to automatically receive notifications through blockchain events. The results demonstrate technical feasibility with a secure transfer of 2 ETH validated by balance variations. The protocol ensures integrity, non-repudiation, and resilience to network disconnections, outperforming existing solutions that require stable connectivity. This contribution paves the way for fully autonomous decentralized agricultural markets adapted to the infrastructural constraints of West Africa.