Sharinghealthcaredatabetweeninstitutionsischallenging.Heterogeneousdatastructuresmayprecludecompatibility,whiledisparateuseofhealthcareterminologylimitsdatacomprehension.Evenifstructureandsemanticscouldbeagreedupon,bothsecurityanddataconsistencyconcernsabound.Centralizeddatastoresandauthorityprovidersareattractivetargetsforcyberattack,andestablishingaconsistentviewofthepatientrecordacrossadatasharingnetworkisproblematic.InthisworkwepresentaBlockchain-basedapproachtosharingpatientdata.Thisapproachtradesasinglecentralizedsourceoftrustinfavorofnetworkconsensus,andpredicatesconsensusonproofofstructuralandsemanticinteroperability.
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