The premier QU4RTET partner

Enterprise serialization,
run without compromise.

Premier provider of QU4RTET hosting, consulting & serialization services.

Gracenote Systems delivers production-grade infrastructure, deep GS1/EPCIS expertise, and Chorus UI — the enterprise interface for QU4RTET available only from us. Compliant traceability at scale, with no vendor lock-in.

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Built for regulated supply chains
Pharma & Life Sciences GS1 / EPCIS 1.2 DSCSA Ready GxP-Aligned Hosting
The open-source foundation

QU4RTET — the leading open-source EPCIS platform

QU4RTET is a powerful, extensible open-source platform for serialization and supply-chain traceability, built on GS1 standards. Gracenote Systems is the premier partner for taking it from repository to production.

  • Full EPCIS 1.2 & CBV support for compliant event capture and exchange
  • Extensible rule engine for validation, transformation, and routing
  • Advanced serial-number pools and allocation management
  • Open standards, open source — enterprise traceability without vendor lock-in
Get QU4RTET in production
EPCIS entry search in Chorus UI showing an SGTIN's entry details, event history, and a live map of its last known location

QU4RTET's EPCIS event history for a single SGTIN — viewed through Chorus UI.

◆ Exclusively from Gracenote Systems

Chorus UI — the enterprise interface for QU4RTET

Chorus UI is the modern, production-ready interface that makes QU4RTET operable for real teams. Designed for regulated industries, it gives operators an intuitive, role-based experience for master data, capture rules, and end-to-end operations — with full auditability and control. Chorus UI is a Gracenote Systems enterprise product, offered only by us.

  • Master data, FDA-sourced product import, and number range management
  • Warewolf warehouse module — barcode-driven receiving, picking, packing & shipping
  • Real-time inventory with lot, expiry, and hierarchical locations
  • Complete audit trail and automatic, compliant EPCIS event generation
  • Fully responsive — runs cleanly on phone and tablet, right from the warehouse floor
Request a Chorus UI demo See the full product page
Chorus UI warehouse execute-transaction screen with receiving, picking, packing, and shipping tiles
What we do

Everything you need to run serialization

From managed hosting to validation and expert consulting, Gracenote Systems is your single accountable partner across the entire QU4RTET lifecycle.

Managed QU4RTET Hosting

Secure, monitored, GxP-aligned infrastructure with high availability, backups, and upgrades handled for you. Your serialization platform, always on.

Serialization Consulting

GS1, EPCIS, and DSCSA expertise from a team that has done it in production. Onboarding, trade-partner connections, and process design.

Chorus UI Enterprise

The exclusive enterprise interface for QU4RTET, with the Warewolf warehouse module — licensed, deployed, and supported by Gracenote Systems.

Implementation & Integration

Rule-engine configuration, EPCIS integrations with line and ERP systems, and custom extensions tailored to your operation.

Validation & Compliance

Documentation and support for validated, auditable deployments in pharma and other regulated industries — built for GxP from day one.

Enterprise Support & SLAs

Dedicated engineers, response-time SLAs, and a direct line to the people who know your deployment inside out.

100%Open-source core, no lock-in
EPCIS 1.2GS1 standards, fully supported
24/7Managed, monitored hosting
GxPAligned for regulated industries
Why Gracenote Systems

The people who run QU4RTET, at your side

We pair the freedom of open source with the accountability of an enterprise partner — so you get the best of both.

Deep QU4RTET expertise

Serialization is what we do. We know the platform, the standards, and the regulated supply chains that depend on them.

No vendor lock-in

Your core runs on open-source QU4RTET. Stay with us because the service is excellent — never because you're trapped.

One accountable partner

Hosting, interface, integration, and support under one roof. One team, one number to call, end to end.

Ready to run QU4RTET at enterprise scale?

Tell us about your serialization goals and we'll map out hosting, Chorus UI, and the support you need.

info@gracenote-systems.com

We typically respond within one business day.