RELATED CONCEPT
Reconciliation
Reconciliation is the automated or manual verification process of comparing two independent sets of financial records to verify accuracy, consistency, and completeness across institutional accounts.
FINANCIAL INFRASTRUCTURE CONCEPT
Double-Entry Ledger
A double-entry ledger is an accounting system where every financial transaction requires at least two balanced entries: a debit to one or more accounts and an equal credit to one or more accounts.
Architectural context & analysis
Enforcing the mathematical invariant (Debits = Credits) ensures total assets equal total liabilities plus equity at all times, preventing unauthorized money creation or vanishing balances.
Within digital banking cores, double-entry ledgers operate as immutable append-only event logs, prohibiting row modifications or balance overwrites.
Worked operational scenario
When a client transfers $100 from savings to checking, the core writes an atomic journal debiting savings and crediting checking for exactly $100.
Implementation considerations & controls
Implement strict database check constraints and integrity assertions preventing unbalanced transaction commits under all concurrency scenarios.
CONCEPTUAL RELATIONSHIPS
Related concepts
RELATED CONCEPT
Core Banking
Core banking refers to the centralized back-end software suite and authoritative database systems that manage an institution critical banking operations, customer accounts, interest, and ledgers.
RELATED CONCEPT
Event Sourcing
Event sourcing is an architectural design pattern where all state changes in an application are stored as an immutable, sequential sequence of append-only events.
RELATED CONCEPT
Protocol 201.3
Protocol 201.3 is the Global Server Banking ledger-execution rail for balance reservation, atomic double-entry posting, and synchronization across banking nodes—recording internal accounting state without by itself constituting legal payment finality.
AN INFORMED NEXT STEP
Establish clear operational parameters for Double-Entry Ledger.
Start with your architecture, integration boundaries and operational requirements.