Notes

2.1. Blockchain in Supply Chain Management:
The paper examines the influence of blockchain technology on agriculture and the food supply chain. It presents various ongoing projects that make use of the technology in their supply chain focusing on food security, food safety, food integrity, small farmer support, waste reduction, supervision, and management. The proposed system is a web application using BigchainDB, Linux(Ubuntu), Python 3.6, and Monit. The web-based user-friendly agricultural supply chain enables greater transparency and enhanced product quality. Fair and timely payment is ensured and the involvement of the middleman is eliminated. The paper highlights the major problems faced by Indian farmers. The proposed system is believed to provide transparency about the product's status while maintaining a good relationship between producer and consumer. System also helps to track the changing market price and incorporate the current market price in the blockchain.

2.2. Blockchain in Food Traceability:
Authors propose a food traceability system that is self-trust and self-organized. The authors highlight some of the companies who have built blockchain-based systems for tracking and tracing agri-food products. IoT technologies eliminate human intervention by replacing manual recording and verification as possible. The article discuss the application of blockchain in the safety and quality of agri-food. The digital data is recorded at every stage of the supply chain, e.g. farmer, food processor, packer, distributors, and retailer. Data recorded in blockchain are immutable and accessible to all parties, which enables to trace of the products.