Blockchain :privacy, security and data traceability

Transparent and Auditable. The data on the Blockchain is unique and immutable – forever. Everything that happens in a Blockchain network can be verified without the need for a central control entity, through a consensus among the participants, there are no intermediaries.


Blockchain is a new technology that allows you to store and share information that is secure due to its transparency. Each block in the chain is both its own independent unit containing its own information, as a dependent link in the collective chain, and this duality creates a network regulated by the participants who store and share the information, rather than a third party.


Mobile applications and remote monitoring machines are essential for patient care in today’s technological age. Blockchain can be applied to these technologies and improve the safety and quality of machinery.


Patients will be able to record data and send it to healthcare providers in minutes, regardless of the distance between the patient and the provider. Since patients can control their own care using this system, patients can be more attentive to their own health and well-being


Blockchain technology can also be applied to access and share patient medical records. Medical records can be difficult to access because they are generally spread across many different healthcare centers, and the blockchain can allow patients to have complete and secure access to all of their medical records and history. Some blockchain-based systems have been proposed for organization and access to the patient’s medical records.

This new cryptographic framework based on multiple levels of encryption maximizes security. Sharing healthcare data securely is also an integral part of healthcare. Private patient health information is stored on the private blockchain, while records of patient health information activity, rather than actual information, are stored on the consortium blockchain, and all data is encrypted.


Blockchain technology has also been applied to clinical trials and, very recently, to the storage of health insurance. Blockchains can easily detect false information due to their transparency, and smart contracts on the blockchain can serve as security promoters for clinical trial data. These smart contracts can keep a true record of trials and produce truthful data that can drive new and effective pharmaceuticals and treatments. Another study also describes the benefits of blockchain in clinical trials and presents a successful procedure for implementation. In addition to transforming clinical trials, blockchain will also be able to transform health insurance storage.


To solve the problem of ownership and control of data, we use multiple signature (multigrade) contracts. Multisig requires multiple users, in this case the patient and the hospital, to use their private keys to sign a transaction for authentication. In this way, the patient cannot alter the record without the permission of the hospital, but still has control over who can access their record. A new swarm hash must be generated each time the data has been accessed (since the previous swarm hash is now known), so we added a timestamp of the “last access”. Changing the data will automatically change the swarm hash, which can then be secured once more until you receive the necessary permissions to access. This model not only provides the security and immutability that blockchain provides, but also offers a multi-grade solution for data ownership and accessibility.

Research on blockchain and healthcare is currently limited, but blockchain is on the brink of transforming the healthcare system; Through its decentralized principles, blockchain can improve the accessibility and security of patient information, and thus can override the hierarchy of healthcare and build a new system in which patients manage their own care.

Comments are closed.

Utilizamos cookies propias y de terceros para mejorar nuestros servicios relacionadas con sus preferencias mediante el análisis de sus hábitos de navegación. Si continua navegando, consideramos que acepta su uso.