Blockchain data provenance refers to the ability to trace the origin and history of data recorded on a blockchain. It ensures transparency and authenticity by keeping a detailed, immutable record of data as it is created, modified, and shared. Each transaction on a blockchain is linked to previous ones, forming a chain of events that can be reviewed.

This chronological order helps verify where data originated and how it has evolved over time. In practical terms, data provenance aids in identifying the source of assets, tracking their ownership, and preventing fraud. For example, it allows users to confirm the authenticity of digital assets or ensure that transactions are genuine.

By utilizing immutable records, stakeholders can trust the integrity of information without relying on a central authority. This fosters accountability and makes it easier to audit data, enhancing overall confidence in the system.