TrustChain: A Privacy Preserving Blockchain with Edge Computing

Table 2

Categorization of Node Types in TrustChain Networks.

Node Type	Storage	Validation
Full Node (e.g. Cloud nodes)	Full TrustChain	Yes
Heavy Node (e.g. Fog Nodes)	TrustChain below Fog	Possible
Light Node (e.g. ROOF Nodes)	Mostly store block headers only	Rarely
Data Issuers (e.g. Sensors, IoT nodes)	None	No