Hackathon Foundation • Fraud & Double-Selling Detection

Cryptographic Integrity for Modern Land Title Registries.

LandGuard delivers real-time double-selling detection, tamper-evident deed hashing, and boundary verification to protect land registries against duplicate sales, forged transfers, and title fraud.

Open Verification Workspace

Foundation Active

Cryptographic Provenance

Deterministic SHA-256 integrity hash calculation and constant-time verification implemented in Node.js crypto.

Foundation Active

Strict Registry Validation

Zod validation schemas enforcing parcel formats, deed structure, positive surface area, and party IDs.

Foundation Active

Auditable Ledger & SQLite

Relational Prisma ORM models and SQLite migrations for Land Records, Transfer Transactions, and Audit Logs.

Engine Active

Double-Selling Detection

Deterministic pre-transaction conflict engine analyzing recorded registered conveyances, seller ownership, and uncancelled concurrent proposals.

Core Stack Verification

Verified framework scaffolding ready for fraud detection engine integration.

All Foundations Green

Next.js 15 App RouterOperational

React Server Components & unified API layer

TypeScript (Strict)Enforced

Type-safe schemas and domain logic

Prisma ORM & SQLiteConfigured

Local relational storage with ledger models

Node.js Crypto SHA-256Active

Deterministic hashing & record-integrity verification

Zod Schema ValidationReady

Input sanitization and bounds enforcement

Vitest Automated SuiteVerified

Isolated unit tests for cryptographic functions

Competition & Ethics Compliance Notice: In adherence with LandTech 2026 Hackathon standards, all demonstration parcels, citizen IDs, and deeds utilized across LandGuard are strictly synthetic. No personally identifiable information (PII) or real-world title records are stored. AI assistance provided via Google Antigravity & Gemini models is formally disclosed.