At the heart of American revolution and declaring of our Independence from a tyrannical regime, the British Empire, we sought to run our own affairs in privacy, with freedom and through justice. Freedom, is expressed best in free markets where buyers and sellers can meet uninhabited, exchange their consideration, and receive value with goods or services ( or both) in return.

The “point of sale” is that precise action and exchange where we realize that the free market is truly the embodiment of freedom and exercising your God-given rights. This is where the power and our self-sovereignty is experienced without burdens of centralized control nor surveillance of how you conduct yourself in a properly functioning economy. Madison Digital Service continues that very American spirit and heritage with our flagship solution we call “Fortress II”.

Our solutions are wrapped into three different configurations: Sentry, Rampart, and Citadel.

Fortress II Point of Sale

This solution is an on-premise, privately-held system designed first to accommodate peer-peer private transactions using private cryptocurrency, Monero to be used just like cash. Anonymity and privacy are the benefits using your own software wallet.

These solutions will also provide our customers desire to continue to use existing common bank check processing and credit card transactions. Business as usual in the national fiat system.

Three different entry points into our solutions will allow small businesses and startups to on-ramp into our platform related where they are in their respective markets.

We have taken a system design approach using our decades experience of bringing systems online for many customers and leveraging new innovations in blockchain and the sheer processing power in small form factors. Now, it is possible to be free of centralized platforms like never before if your desire. This has really been a technological and societal trend and push in the making for 20 years. Now technologically feasible as it is fact. Take control.

Customization of the user interface is available for company logos and trade associations as needed. Customer’s product references can be added using CVS, JSON files, or an import to into the solution’s local database. These feeds to the individual drop down boxes or list boxes in your system for easy access.

Sentry Solution

fortress_sentry_solution Download

Rampart Solution

fortress_rampart Download

Citadel Solution

fortress_citadel Download

Fortress II GalleRy of merchant storyboards

Engraving Shop

Fresh Garden Marketplace

Books and Other Fine Treasures

Coffee and Croissants Cafe

Print and Creations Boutique

AEC Employee Rewards and Procurement

The Indispensable American Farm

Celebrations in the Local Tavern

Fortress II Point of Sale Platform – Citadel Solution and Configuration

Fortress II POS Platform

Citadel Solution from Madison Digital Solution

The Impenetrable Core Stronghold – Business-Ready Redundancy & Scale

The Fortress II Citadel Solution is the ultimate fortified solution for high-volume, multi-location enterprises. It combines the full Rampart workstation (dual displays, barcode scanning, cash handling) with massive NASKat NAS storage and RAID 5 redundancy — delivering unbreakable data protection, seamless hybrid payments (anonymous crypto, stablecoins, tokenized assets, cash, checks, credit cards), and scalable operations — all in a powerful, printer-free enterprise package.

Fortress II Citadel Bundle – The Impenetrable Core Stronghold

Fortress II Citadel – Building Greater Wealth

Unbreakable Enterprise Redundancy

NASKat NAS with RAID 5 protection, dedicated OS SSD, and 8-16TB HDD options delivers massive, fault-tolerant storage for transaction logs, inventory archives, and multi-level automated backups — teraabyte-ready without central vulnerabilities.

NASKat NAS – Enterprise-Grade Storage for Citadel Bundle — NASKat – Compact & high capacity NAS with RAID 5 redundancy and scalable storage for unbreakable business operations

Full Hybrid Capabilities (Everything from Rampart + Enterprise Scale)

The Citadel Bundle includes all Rampart strengths, now fortified for high-volume and multi-location operations:

Anonymous Crypto Support — Full native handling of privacy coins (XMR, Zcash), public chains (BTC, LTC), Kinesis tokenized metals, and stablecoins
Secure HID Cash Drawer — Reliable cash/check processing for ad-hoc or invoiced payments; auto-opens only on transaction commit
Dual-Display Setup — 24-inch primary monitor for operator control + 10-inch customer-facing display for real-time totals, QR codes, and transparency
Professional Operator Station — Premium Logitech K780 keyboard/mouse combo for fast, ergonomic multitasking and data entry
High-Speed Barcode Scanning — Instant 1D/2D UPC capture to streamline invoice line items and inventory updates with zero manual input

Built for demanding businesses.

Enterprise-Scale Privacy & Self-Sovereignty

Self-sovereign architecture with native privacy coins, on-platform asset exchange via BasicSwap atomic swaps, upcoming Haveno support, Kinesis integrations, and real-time monitoring — all protected by unbreakable redundancy.

Flexible payments for invoicing customers and trade assets on the fly

Scalable Multi-Location Fortress

Ideal for heavy transaction volumes, multi-store synchronization, long-term data archiving, and centralized-yet-decentralized reporting across locations — powered by PostgreSQL and expansive local storage.

Advanced Transaction & Analytics Tools

Create sophisticated invoices or ad-hoc requests, recall/audit/refund transactions, and run powerful built-in reports on trends, payment methods, and performance — all backed by enterprise-grade PostgreSQL.

Local AI Business Intelligence

A private, read-only local AI agent queries your full database directly. Ask natural-language questions about business trends, top customers, or multi-location performance — with zero data ever leaving your fortified system.

Flexible Card Processor Integrations

Connect to remote processors like Square, Kinesis Debit Card platform, or others via secure API. Add, configure, or remove connections anytime through an intuitive interface.

Turnkey & Ready for Immediate Action

Fully equipped and pre-configured, the Citadel Bundle is ready out of the box to process high-volume transactions, manage complex invoices, accept hybrid payments, and deliver enterprise-grade reports — right from day one. Need custom reports, tailored data models, or specific API integrations? We deliver those seamlessly — pricing and scope negotiated transparently based on your needs and our effort.

Fortress II Point of Sale Platform – Rampart Solution and Configuration

Fortress II Point of Sale – Rampart Solution

Fortress II POS Platform

Rampart Solution from Madison Digital Solution

The Sturdy Defensive Wall – Hybrid Crypto + Cash Efficiency

The Fortress II Rampart Bundle builds a robust, professional defense on the Sentry foundation. It adds a full operator workstation, high-speed barcode scanning, and secure cash handling — delivering seamless hybrid payments: true anonymous crypto (XMR, Zcash, BTC, LTC), stablecoins, tokenized assets, cash, checks, and credit cards — all in a powerful, efficient, printer-free package. Fortress II Rampart Bundle – The Sturdy Defensive Wall

Fortress II Rampart Bundle – The Sturdy Defensive Wall

Core Fortress II Features – Included in Every Bundle

Hybrid Payment Flexibility

Full decentralized crypto support (XMR, Zcash, BTC, LTC, Kinesis metals, stablecoins) + secure HID cash drawer for ad-hoc or invoiced cash/check payments. Drawer opens only on transaction commit for maximum accuracy and security.

Efficient Operator Station

The Rampart Bundle delivers a professional, high-performance workstation designed for speed, transparency, and multitasking:

24-inch Primary Monitor — Large, crisp display for full transaction views, dashboards, inventory management, and operator control
10-inch Customer-Facing Display — Compact secondary screen for real-time visibility of totals, QR codes, digital receipts, and payment details — builds trust and speeds up checkouts
Logitech K780 Multi-Device Keyboard & Mouse — Premium wireless typing with numpad for fast entry, plus seamless multi-device switching
High-Speed 1D/2D Barcode Scanner — Instant UPC capture to add line items to invoices or update inventory counts with zero manual entry

Perfect for fast, accurate, customer-friendly operations in busy retail environments.

Uncompromising Privacy & Self-Sovereignty

Native anonymity with privacy coins, self-sovereign architecture, on-platform asset exchange via BasicSwap atomic swaps, upcoming Haveno support, and Kinesis integrations — all without KYC or intermediaries.

Bulletproof Reliability

Dual 4 TB SSD redundancy, real-time monitoring, automated backups, and PostgreSQL foundation ensure zero downtime and complete data integrity, even during high-volume hybrid operations.