• Food traceability. Blockchain and smart contracts provide a wealth of information about food, its handling and transportation process. Thus, customers have more knowledge to decide to buy one or another product.
• Real estate market. Property registration will be more efficient thanks to smart contracts, avoiding manual paperwork and possible incorrect procedures.
• Patents. Smart contracts are useful both for creating patents and for detecting hypothetical infringements.
• Health sector. There can be different uses in the health field. On the one hand, security can be increased in the storage of medical records. On the other hand, as with food, data such as cold chain, health passport or clinical research can be discovered.

Advantages of blockchain smart contracts

Smart contracts and blockchain have many advantages:

• Saving time and materials. Since no intermediary (or commission) is required, it leads to a reduction in costs. Also, since everything is digital, it also saves on paper. It also creates fuel savings (and thus pollution reduction) by reducing travel.
• Reliability. It cannot be altered or falsified, and the chances of making mistakes both in the conditions and in the subsequent procedures are minimized.
• Automation. When running automatically, the speed of the processes is increased, so the procedures are simplified by automating the steps.
• Security and autonomy. Due to the automation we mentioned above, the risk of a third party participating in the implementation of these mechanisms is eliminated.
• Productivity. As tasks become more efficient, employees do not invest time in tasks that may be more tedious or repetitive; therefore, in addition to productivity, the level of employee satisfaction also increases.
• Improve the customer experience. By allowing customers to sign more easily and quickly, their experience is enhanced. In addition, purchasing processes are modernized.

What platforms can they run on?

There are many platforms that offer these services. Some of the most commonly used ones are:

• Ethereum: Perhaps the most popular and the codes are included in its own programming language called Solidity.
• Counterparty: It uses the Bitcoin block chain and is ideal if this cryptocurrency is used.
• Hyperledger: It is a flexible platform developed by the Linux Foundation.
• Polkadot: It is an alternative Blockchain because it has a great capacity for parachains. They are chains within other chains, with which many transactions can be made.