Why a Double-Entry Ledger Matters for African Fintech

At Sente, every money movement — whether a USSD airtime top-up in Nairobi or a merchant checkout in Lagos — is recorded as a set of double-entry journal postings whose debits and credits must always net to zero.

This isn't just an accounting nicety. It's the foundation of trust. When you can reconstruct every balance from immutable postings — rather than mutating a single `balance = balance + x` row — you eliminate an entire class of bugs and fraud vectors.

Why it matters

**Auditability**: Every financial position is provably reconstructable from postings.

**Correctness**: The invariant Σ debits − Σ credits = 0 is enforced at the database level.

**Resilience**: A corrupted balance row can be rebuilt from the ledger.

In a market where trust in digital payments is still fragile, this level of rigor isn't optional — it's table stakes.