Wallet Tagging
Wallet tagging is the process of labeling specific blockchain addresses with known entity information, such as an exchange, a hedge fund, or a known malicious actor. This is often done by surveillance firms that monitor the network and observe which addresses interact with regulated platforms.
Once a tag is applied, it persists in the intelligence database, allowing for real-time monitoring of that entity's activity. This is critical for compliance departments that must screen transactions against sanctions lists.
It also allows market researchers to track the behavior of institutional players. The effectiveness of this practice relies on the constant updating of data as wallets are created and abandoned.
It is a core component of the institutionalization of the crypto market.