Ali et al. [23] used IPFS to store data, and data was hashed on the chain, which relieved the pressure of blockchain storage and avoided the centralized management of data. Liang et al. [24] proposed to save the data to the cloud, while the data hash values were stored in the ...
Ali et al. [23] used IPFS to store data, and data was hashed on the chain, which relieved the pressure of blockchain storage and avoided the centralized management of data. Liang et al. [24] proposed to save the data to the cloud, while the data hash values were stored in the ...