Lightweight Cryptographic Ledger with Rule-Based Anomaly Detection for Secure Financial Transactions

A lightweight cryptographic ledger with rule-based anomaly detection for secure financial transactions.

A lightweight cryptographic ledger with rule-based anomaly detection for secure financial transactions. It is offered as a reference project: a complete, worked example of how a system like this is designed, built and evaluated, so that a developer can study it, run it and learn from it.

It suits learners who want to build decentralised applications: designing smart contracts, testing them, connecting a front end through a wallet and reasoning about security and cost.

The main parts are security and privacy controls such as encryption and access control, smart contracts for the core rules, a front end connected through a wallet, tamper-evident records on the chain, and automated contract tests. The reference build uses Solidity, Ethereum, Hardhat, and Web3.js, with a clear project structure, setup instructions and sample data so that it can be run and extended.