Table 1.

Comparison of supply chain solutions. IoT: Internet of Things.

SR # [Ref]	Year	Blockchain	IoT	Deep Learning	Objective
1 [24]	2016	No	Yes	No	Tracking the environmental stress during the dairy products supply chain.
2 [25]	2017	No	Yes	Yes	Improving traceability quality using evaluation based protocols.
3 [26]	2018	No	No	Yes	Identification of missing information during the validation process of the supply chain.
4 [27]	2018	Yes	No	No	Providing sustainable environment using consortium blockchain for food trading.
5 [28]	2018	Yes	No	Yes	A credit evaluation system for accountability in the food supply.
6 [29]	2019	Yes	No	No	Using Electronic Product Code Information Services and blockchain for food safety traceability.
7 [30]	2019	Yes	Yes	No	Cost-effective and user convenient traceability system for perishable food.
8 [31]	2020	Yes	No	No	Visualizing food safety risk in the supply chain using a quantitative analysis method.
9 [32]	2020	Yes	Yes	No	Creating a value chain from farm to fork using IoT and blockchain.
10 [proposed]	-	Yes	Yes	Yes	Optimizing provenance system for food with Industry 4.0.