financial-ledger

A double entry ledger implementation in PostgreSQL

Financial ledger engine with observable staged guarantees. 5.2M tx/s, Programmable with Wasm, WAL durability, composite operations, crash-safe recovery

A fault-tolerant double-entry financial ledger built to guarantee correctness under concurrency.

🏆 #1 Winner ($2,500) of Telegram @cryptobot Backend Contest. Production-ready, high-concurrency digital asset auction system. Features immutable financial ledger, race-condition protection (MongoDB TX & Redis locks) and real-time WebSockets.

Enterprise-grade, multi-tenant digital wallet and double-entry financial ledger engine built with NestJS, Prisma, PostgreSQL, Redis, and BullMQ.

📡 Offline-first ISP management platform — hierarchical area/town structure, subscriber profiles, LIFO billing logic, Excel import/export, bulk billing & full financial ledger. Built with React 19, TypeScript & SheetJS. No backend required.

Production-grade Mess Meal Management System for student & bachelor messes. Server-authoritative meal cutoff locking (Asia/Dhaka), bazar duty scheduling, expense tracking, multi-fund ledgers, and automated monthly settlements.

A data structures project that implements a persistent financial ledger system where each transaction creates a new version of the state. Supports efficient historical queries, O(log n) updates, and fraud detection using statistical anomaly checks (spike, percentage, and z-score methods).

A privacy-first, local-LLM powered personal finance tracker and multi-currency ledger for Windows and Linux

📱 Carnet numérique de crédit & registre financier hors-ligne pour commerçants. (Signature tactile, photo du mandataire, scellé cryptographique SHA-256 et reçus instantanés. Compatible Android 5 à 17)

Full-stack distributed immutable financial ledger: double-entry bookkeeping, Serializable isolation, Redis idempotency, Transactional Outbox, SHA-256 audit chaining, and React institutional dashboard.

PayGuard is a FastAPI financial ledger with double-entry transfers, balance tracking, idempotency protection, and passcode-secured voice payments.

Implement Financial ledger App Using Android Studio(Java)

Distributed ledger for transaction tracking

Modern real-time estate property management dashboard and financial ledger platform built with Django. Fully secured with dynamic currency analytics, active tenancy counters, custom session tracking middleware, and automated production deployment pipelines.

Production-grade double-entry ledger & core-banking transaction engine in Java 17 & Spring Boot 3. Features pessimistic locking, atomic idempotency, 16-shard cash scaling, and 92% test coverage.

Production-grade Solana wallet management architecture with secure signing, append-only ledger, atomic reservations, idempotent transfers, reconciliation, failure recovery and distributed Guardian nodes.

Security-focused double-entry ledger in Go with serializable PostgreSQL transfers, durable idempotency, risk outbox and reconciliation.

Telegram cryptocurrency wallet bot sandbox built with Laravel, PHP and MySQL. Simulates Ethereum (ETH) deposits, internal transfers, withdrawals, balances, fee settlement and reconciliation using an immutable double-entry ledger, role-based admin controls and durable queues. Fake custody only: no real blockchain transactions or customer funds.

High-performance distributed double-entry financial ledger platform built with Rust, PostgreSQL, and a Starlink-inspired React monochromatic interface.