Ledger: Stripe’s system for tracking and validating money movement

Stripe's Ledger is an immutable and auditable log that serves as a trustworthy system of record for financial data. It guarantees the accurate tracking and validation of money movement. Ledger encodes a state machine representation of producer systems and models its behavior as a logical fund flow. It provides mathematical evidence that individual systems are functioning correctly. The Ledger is the foundation for Stripe's Data Quality (DQ) Platform, which ensures reliable and timely reporting of money movement issues. DQ metrics, such as clearing, timeliness, and completeness, are used to measure the health and accuracy of fund flows.