Smart contract

Smart contract and voting

The voting results will be placed in the blockchain and distributed among the network nodes. All data is transparent, encrypted and anonymous. This method prevents any fraud in the elections.

The basic features of voting on the blockchain platform

1. Voter Anonymity (VA): The vote cannot be traced back to the voter during or after the election.
2. Vote Concealment (VC) The value of the vote should be hidden from the system (voters, candidates, election commission).
3. Vote Immutable (VI). Once a voter casts his vote, it is impossible for anyone to change it to any other vote.
4. Double Voting Inhibition (DVI): A voter must vote only once in a particular election.

Today, we are facing other major problems in the general election system. Elections form the basis of a democratic nation. Therefore, electoral corruption is a big problem. It not only undermines people’s trust in the system, but also creates an atmosphere of mistrust among people. Therefore, blockchain is being adopted by countries these days to create a system that can accelerate the speed of work without disrupting the efficiency of the system and increasing transparency.

For the first time in the world, the national elections of a Sierra Leone country were held using blockchain.

Voting was done manually and on paper sheets, but it was also recorded in the blockchain ledger at the same time.

The Swiss company Agora has been the organizer of this election. In this election, only the representatives of this company could register the ballots in the blockchain.

Smart contract and health care

Blockchain can store patients’ encrypted health records with a private key. Only certain individuals are allowed access to records for privacy concerns. Similarly, research can be conducted confidentially and securely using smart contracts

All patient hospital receipts can be stored on the blockchain and automatically shared with insurance companies as proof of service.

Today, managing information, records and health data of patients is considered a serious and important task for many doctors. In addition, there have always been many cases of fraud due to the vulnerability of old systems. This is where traditional systems are replaced by smart contracts.

Smart contract and health insurance

Smart contracts can be used on a daily basis in health insurance and can reduce many inefficiencies in the current system.

They can also eliminate the stress of submitting lengthy insurance claim forms. If an insured was to undergo a medical procedure covered by the insurance policy, the smart contract will be activated automatically. This means that the money from the insurance company’s account goes directly to the hospital. This automation reduces any delays and hassles and enables correct payment of medical services. In turn, this speeds up all transactions between the parties and ensures that the process is not delayed.

Smart contract and health data management

Health data management plays a vital role in the health care system. Their structure and content may determine the appropriate diagnosis and treatment for patients to avoid medical errors. In addition, patients’ health data had become a prime target for cybercriminals. Third parties misuse this data for marketing or even malicious purposes, so it is necessary to protect and secure it.

Smart contracts allow this health data to be stored in a distributed ledger. In this way, if the patient needs to be transferred from one hospital to another, he can easily do so without having to fill out multiple forms. This is because the patient’s provider can easily view their health data and medical records using the blockchain network.

Many hospitals and healthcare organizations still rely on traditional databases. Without smart contracts, this information may reach the intended recipient late and the patient’s health may be compromised.

If health data is recorded in smart contracts for storage and distribution through blockchain, the data will be accessible to hospitals and research institutions around the world. And with widespread adoption, a patient can go to any hospital in the world for treatment, and by providing their private key, the hospital will instantly have access to patient information.

Smart contract and drug integrity

According to a Forbes report in 2017, pharmaceutical companies suffer an estimated loss of $200 billion annually due to counterfeit drugs worldwide. Using blockchain and smart contracts, drugs can be tracked throughout their entire life cycle. Each element and material must be numbered and tracked with geographic information and other relevant information. The tracking data is then added to the blockchain (only metadata is included in the blockchain for efficiency reasons).

Blockchain ensures that this data cannot be compromised or deleted. It gives us the cryptographic property known as non-repudiation: Once a drug is tracked and registered, it is impossible for a malicious actor to disappear without being caught.

A company called Encrypgen, which operates in the field of health, is another company that uses smart contracts. This company operates in the field of buying and selling the human genome. Interested people can sell their DNA information on this site so that researchers can use this information to conduct research on the human genome. But this information can be misused. There is also a possibility that people’s information will be published publicly and the person will not be able to make good money from this information.

Encryptgen has used smart contracts to solve this problem. In this way, the problem of third parties accessing people’s information has been solved, and also people who needed this information cannot access it without paying for it.