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. 2021 Nov 3;9(11):e27816. doi: 10.2196/27816

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©Faisal Albalwy, Andrew Brass, Angela Davies. Originally published in JMIR Medical Informatics (https://medinform.jmir.org), 03.11.2021.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Medical Informatics, is properly cited. The complete bibliographic information, a link to the original publication on https://medinform.jmir.org/, as well as this copyright and license information must be included.

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The high-level structure and workflow of ConsentChain. Ati: access ticket; DR: data requester; IPFS: InterPlanetary File System; OSS: Oracle Service Server; OSSC: oracle service smart contract; P: patient; PSC: patient smart contract; RSC: registration smart contract.