Blockchain is a network of computers/databases spread throughout the globe. It acts as a public ledger there everyone can trace every transaction on the database. The records are immutable, meaning no single organisation or individual can make any change to the existing transactions. That’s why it is capable of providing digital provenance.
A normal or traditional database won’t bring the same provenance because it is centralized. In other words, it is controlled and manipulated by some parties. The traditional database also lacks the quality of immutability. It is possible to edit/delete some records.
To many businesses, digital provenance provides trustless trust. They can rely on the blockchain to verify and to enforce business deals. This will remove a huge amount of transaction costs and the cost of due diligence.