Blockchain Framework for Secure COVID-19 Pandemic Data Handling and Protection

Table 1

Comparison between traditional client-centered centralized platform and blockchain platform.

Aspect	Traditional platforms	Blockchain platform
Data handling	Supports read, write, amend, delete and update operations	Only allows read and write operations
Integrity of data	It's possible to tamper with or change data.	Data is immutable and easily auditable
Privacy of data	Highly susceptible to cyber-attacks and PII leaks	Data is stored using cryptographic hash functions that make PII anonymous
Transparency of data	Databases are not transparent or easily auditable	Data is available and stored in distributed ledger
Data security	Single-point failures or assaults provide a high risk.	Distributed ledger hence highly fault-tolerant