Table 1. Comparison between different architectures with respect to our proposed model.

Ref	Scalability	Energy consumption	CTPS	Real time synchronization	Access control	Transaction fees involved	Real time IoT applicability	Interoperability/ modularity
Muhammad Salek Ali & Antonelli (2017)	High	Low	Low	Yes	Yes	Yes	No	No
Huh & C (2017)	Low	High	Low	Yes	Yes	Yes	No	No
Novo (2018)	Low	Low	Low	Yes	Yes	Yes	No	No
Abou-Nassar et al. (2020)	Low	High	High	Yes	Yes	Yes	Yes	No
Proposed approach	High	Low	High	Yes	Yes	No	Yes	Yes