Fintech

SmartWallet

A code accounting error is not a bug. It's lost money and lost clients.

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Double-Entry Bookkeeping LedgerLIVE RECORD
Activo (Caja)Debe$4.500,00
Ingresos (Ventas)Haber$4.500,00
Gastos (Host/SaaS)Debe$120,00
Activo (Banco)Haber$120,00
 Azure Key Vault Protection
All credentials, transactions and asymmetric ledger keys are signed inside HSM modules. Zero raw exposures.
 Hash Ledger Integrity
Consensual ledger blocks cryptographic validation. Cryptographically sealed chains prevent arbitrary updates.

Overview

the project

When handling financial transactions, the margin of error must be mathematically zero. A mismatched ledger breaks user trust forever.

We built SmartWallet with Double-Entry Bookkeeping architecture. Immutable bank-grade accounting. If a server fails mid-payment, the system rolls back cleanly.

Absolute transactional precision, ready to be integrated into your product.

outcomes

Precision & Control

Ledger Precision

0

Every cent has a registered origin and destination. The balance never offsets. Never.

Data Security

Vaulted

Credentials do not live in the code. They live in secure hardware. Just like a bank.

Transactions

Shielded

If the server crashes mid-payment, nothing is left half-done. Everything goes through or nothing does.

Integration

REST API

Connects to your app, website, or sales system. Without rebuilding anything.

technologies

tech stack

.NET 8SQL ServerAzureDocker

scope

What's included

Double-entryEvery dollar that enters has a destination. Every dollar that leaves has an origin. Impossible for the balance to become offset.

VaultAccess keys, tokens, and sensitive data live in a hardware vault. Not in an environment variable that someone could inspect.

TransactionsIf two users perform an operation simultaneously, the system resolves it without duplicating or losing anything. The money always arrives.

APIConnects to what you already have. No need to rebuild the platform — SmartWallet integrates as a module.

AuditEvery movement is recorded forever. If there is a dispute, you have the complete history. If there is fraud, it is detected.

deployment

live demo & code

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