BlockSec Research described AML compliance for crypto exchanges through five VASP obligations: registration and licensing, customer verification, transaction monitoring, reporting of Suspicious Activity, and recordkeeping.

According to the synopsis of the publication, on-chain transaction monitoring is considered part of this system. The source separately promises to explain where exactly it fits into the overall AML approach.

The practical significance of this scheme lies in the separation of compliance into separate processes: from admitting an exchange to operate and verify the client to transaction analysis and subsequent data retention.