btc-to-the-moon

What is the practical role of blockchain?
Take, for example, supply chain management that traces the origin of food.
Scenario: Let's say you buy a bottle of organic milk, but you want to confirm if the bottle is really produced from an organic ranch.
The traditional food supply chain usually involves multiple links (farms, processing plants, transportation companies, supermarkets).
The data for each link may be stored in its own database, making it difficult for consumers to verify the authenticity of this data.
If a link falsifies information (e.g. regular milk passing off as organic milk), the consumer will not be able to detect it.