Blockchain has gained a lot of attentions from different sectors like government, business, education etc, everybody loves it and wants to use it. End-users want their daily foods getting verified by Blockchain. If we go in the store to buy items like fish, different questions come in mind, such as:

  1. Is the fish healthy enough?
  2. Have the farmers followed the rules producing fishes?
  3. Which environment are they produced in?
  4. How they are processed and carried from farm to shop?
  5. Who is the actual producer of the fish?
  6. What is the transit route and who are the intermediaries?
  7. Are the items regulated by authorized entities and have they passed all requirements to sell the items in the market?

We can use Blockchain to address the sensible questions above. Now, I am going to talk little bit more about the integration of Blockchain with Supply Chain Management (SCM) of tuna fish. Catching fish is legal but your catch should not affect sustainability of the fish and that can be made sure using Blockchain. In the SCM of fish, four participants are involved and they are:

  1. Fisherman
  2. Processing plant
  3. Regulator
  4. End-user/Restaurants

How Supply chain works together with Blockchain?

In the Blockchain enabled system, the farmer collects information of each individual fish that may include Unique ID given to fish, fisherman name, location, date and weight. It is possible to store more details like toxicology, temperature, daily food info, and so on. Such information is stored in the global state of Blockchain. That means the information is broadcasted to all concerned participants. The data may look like:

var fish = { id: ‘10001’, holder: ‘John’, location: { latitude: '19.343036', longitude: '-18.766794'}, when: '20180635123546', weight: ‘60lbs’ }

The farmer can save the info into Blockchain in batches as well. At this point, only the farmer has read and write access. The rest of the participants of the network have only read access.

The processing plant gets notifications about the fishes through their application that is connected to Blockchain system and starts processing. They may use the app to query against the ledger and get info about all caught fishes. The processing plant adds details reflecting the processing date, time, fish weight and other relevant information.

The regulator may use their specific application to query the ledger about the fishes caught by the farmer and processed by the processing plant. He/she verifies whether the fishes are caught legally, location, person and other required info. All verifications are locked down into Blockchain through their app.

Now the end-user/restaurant uses their app to query the ledger and shall know about the history of the fish, whether it’s caught legally, properly processed and regulated or not. Once it is confirmed, the end-user or restaurant can decide to use it. In this way we can confirm whether the food we are consuming is healthy enough or not.

I will come up with more blockchain use cases, stay tuned and thank you for reading this post.