PHDMF a personal health data management framework

a federal personal health data management
framework (PHDMF, https://hvic.biosino.org/PHDMF) has been developed, which had the
following advantages: 1) the blockchain technology was used to establish a data
consortium over multiple medical institutions, which could provide a flexible and
scalable technical solution for member extension and solve the problem of third-party
endorsement during data sharing; 2) using data distributed storage technology, personal
health data could be majorly stored in their original medical institutions, and the massive
data transferring process was of no further use, which could match up with the data rapid
growth of these institutions; 3) the distributed ledger technology was utilized to record the
hash value of data, given the anti-tampering feature of the technology, malicious
modification of data could be identified by comparing the hash value; 4) the smart
contract technology was introduced to manage users’ access and operation of data,
which made the data transaction process traceable and solved the problem of data
provenance; and 5) a trusted computing environment was provided for meta-analysis with
statistic information instead of original data, the trusted computing environment could be
further applied to more health data.