Blockchain is a decentralized and immutable technology which offers transparency for the digital world, where habitual technology does not. The novel blockchain technology may be employed by many sectors, i.e., healthcare, bank, government services, and supply chain. In particular, Biomedical Engineering Supply Chain (BESC) is a significant part of the medical sector that supplies equipment for the medical sector i.e., Covid-19 testing kit, PPE (Personal Protection Equipment), and medicine. The biomedical product should be able to be traced and the data secured; otherwise, the initial data may be modified and potentially risking patients and the public. Nevertheless, the conventional centralized technology creates a leakage point and as such, compromises data security. This paper proposes a new data dealing approach with using Hyperledger Fabric Blockchain-based BESC to alleviate the centralized controllable and operational issues. The blockchain-based BESC is a novel approach, which can control the users and subsequently eliminate the possibility of tampering within the blockchain system when stored.

Distributed ledger technology is an immutable data storage and transparent system, which is a constituent component that empowers the Food supply Chain Management (FSCM). Due to the immutable data feature, the scalability of blockchain technology is quite a challenge. In essence, blockchain data may grow rapidly as compared to the existing approach, and such circumstances is an issue that need to be addressed. Also, high volumes of data process for each transaction verification couple with long period of time for computation, lead to high overhead and resource consumption. This study discusses improved methods to reduce the amount of data generated by system. The proposed method employs the header verification system for transaction to reduce data growth and data processing time. During transaction, this method will verify only the header file information with using Merkle tree. This system is able to store each transaction of a node and form blockchain. Subsequently, each node is capable to verify valid transactions only by use of header data without maintaining full data of blockchain. The expected outcome of the scheme is the significant decrease of data growth in blockchain.