Change Address Identification
Change address identification is a forensic technique used to determine which output in a transaction is the return of funds to the sender. In many blockchain models, when a user spends only a portion of their available funds, the remaining amount is sent back to a new address controlled by the sender, known as a change address.
Forensic tools analyze transaction inputs and outputs to identify this specific address, which allows them to track the sender's continued movement of funds. By isolating the change output, analysts can effectively filter out noise and focus on the destination of the primary payment.
This is a critical step in de-anonymizing transaction graphs and understanding the flow of assets between wallets. Identifying these addresses is essential for accurate balance tracking and entity attribution in complex transaction structures.