A User-Centered Medical Data Sharing Scheme for Privacy-Preserving Machine Learning

Algorithm 2

Model storage.

	Input: model: Data demander node identification ; Public Key ; Private Key ;
	Output: Blockchain Transaction ;
(1)	Generate models and data requirements
(2)	Generate timestamp
(3)	Generate model hash
(4)	Signature
(5)
(6)	Call the model contract to upload data to the blockchain