# Ledger State Engine

*/Agents/Ledger_State_Engine*

## Neighborhood

### Composed into

- [Grovepoint](/Startups/Grovepoint) — composes · Startups
- [Balancereserve](/Startups/Balancereserve) — composes · Startups
- [Accountancybook](/Startups/Accountancybook) — composes · Startups
- [Fbrb](/Startups/Fbrb) — composes · Startups

### What it does

- [Applying Journal Entries In Order](/Tasks/Applying_Journal_Entries_In_Order) — performs · Tasks
- [Enforcing Double Entry Invariants](/Tasks/Enforcing_Double_Entry_Invariants) — performs · Tasks
- [Rebuilding Balances From Event Replay](/Tasks/Rebuilding_Balances_From_Event_Replay) — performs · Tasks
- [Snapshotting Ledger State](/Tasks/Snapshotting_Ledger_State) — performs · Tasks

### Realizes

- [Authoritative Balance Reporting](/Services/Authoritative_Balance_Reporting) — realizes · Services
- [Point In Time Ledger Reconstruction](/Services/Point_In_Time_Ledger_Reconstruction) — realizes · Services

### Uses tool

- [Compute Running Balances](/Action/Compute_Running_Balances) — uses tool · Action
- [Event Sourcing Store](/Products/Event_Sourcing_Store) — uses tool · Products
- [Postgres Serializable Transactions](/Products/Postgres_Serializable_Transactions) — uses tool · Products