Technology

The proof of authenticity arises in interaction.

VeriSeal does not rely exclusively on a copyable chip ID, but combines cryptographic tag data, server status and context.

In one sentence

The product proves its digital identity with every contact.

A security label connects the real product with VeriSeal. During the scan, the server not only checks a number, but also dynamic cryptographic proof, the current seal status and the known product history. VeriSeal then shows released product data and documents the event - from the factory through transport and handover to service and recycling.

AI-assisted illustration · not a real customer installation

Simply explained

Ein sicheres Label verbindet den realen Gegenstand mit seiner digitalen Identität.

Beim Scannen prüft VeriSeal nicht nur einen Link, sondern Echtheit, Manipulation, Status und Berechtigung. Das Ergebnis wird einfach als verständlicher Vertrauensstatus angezeigt.

Hinter einem einfachen Scan

Produkt, Smartphone und sichere Prüfung arbeiten zusammen.

Für den Nutzer bleibt der Ablauf leicht. Im Hintergrund werden Identität, aktueller Nachweis und Serverstatus gemeinsam geprüft.

AI-assisted illustration · not a real customer installation

Drei Teile, eine klare Antwort

Das Sicherheitslabel erzeugt den Nachweis, das Smartphone übermittelt ihn und der Server bewertet ihn.

AI-assisted illustration · not a real customer installation

Fast unsichtbar. Technisch eindeutig.

Antenne, Chip, Klebeschichten und Manipulationsschleife verbinden Verpackung und digitale Identität.

01

Identify

NFC, UHF, QR or barcode lead to the unique product identity.

02

Authentication

NTAG 424 DNA generates dynamic SUN/SDM data that the server cryptographically checks.

03

Evaluating

Replay protection, tamper loop, event history and risk rules determine the status.

04

Documentation

Testing and product life cycle are recorded close to revision and anchored as an option.

NTAG 424 DNA TagTamper

Authenticity and state of opening in a cryptographic proof.

The NFC chip generates dynamic sun/SDM data with each scan. A separate, fragile tamper loop over the packaging opening also provides an authenticated opening status. VeriSeal checks cryptogram, counter, tag assignment, replay risk and server status together.

AES-128Dynamic Tag ProofSDM/SUNScan individual dataTagTamperAuthenticated loop statusServer CheckNo UID-only authentication
NTAG 424 DNAAuthenticity and state of opening in a cryptographic proof.
SDM/SUNDynamic SUN/SDM data
01AES & SDMDynamic, day-specific examination
02PostgreSQLFull operational data
03BLOCKCHAINMinimum Invariant Detection
Conceptual representation: The specific antenna and loop geometry is designed with the label manufacturer for material, packaging and opening line.

Functional sequence in 60 seconds

From NFC tap to reliable product verification.

The video shows the complete process from tag, server check, product database, manipulation status and optional blockchain anchoring.

Hybrid trust architecture

Database for operation.
Blockchain for proof.

PostgreSQL is the primary operational database for product information, roles, events and workflows. VeriSeal can optionally anchor only cryptographic hashes of selected audit events on a blockchain.

PostgreSQL

Full operational data

Fast, multi-client capable, correctable in the regulated process and suitable for data protection, ERP and production requirements.

Blockchain

Minimum Invariant Detection

No product details and no personal data on-chain – only the later independently verifiable hash anchor.

Product Trust & Lifecycle

One product identity. A complete trust space.

VeriSeal connects evidence, operations and lifecycle—from manufacturing to service, recall and reuse.

01Digital product passport

A scan leads to the information approved for this specific product, such as its instructions and service history. Access permissions determine which documents each person can see.

02Digital credentials

A digital certificate links evidence to its product, issuer and validity period. Its technical meaning and acceptance still require assessment by the responsible bodies.

03Warranty & service

Product identity and recorded maintenance help the service team prepare a repair. Warranty eligibility remains subject to the agreed terms and the provider’s assessment.

04Ownership transfer

A handover records who confirmed receipt and what information may be shared afterwards. This record does not replace a contract or other required proof of ownership.

05Recall & crisis

Product and batch references help direct recall notices to affected items. Effective follow-up depends on complete records and communication channels that have actually been set up.

06Chain of custody

The documented sequence of custody shows who handed over a shipment and who received it. Missing stages remain gaps, not confirmed events.

07Partner portal

Partners receive access to explicitly released information for their work. A dealer and a repair provider can therefore see different documents while internal records remain protected.

08Offline verification

Without a connection, the latest server status is not available automatically. An agreed offline process must limit data age and permitted actions, then reconcile events after reconnection.

09Connector marketplace

Connectors exchange agreed data with existing business systems. Availability, field mapping, permissions and error handling must be verified for each integration; a listing is not proof of a working connection.

10SBOM & firmware

A software bill of materials describes a product’s software components. Accurate firmware records can help identify affected devices, but displaying a version does not install or approve an update.

01Manufacture

The product and its identifier are assigned to one another during manufacture. Approved initial data provide the reference for later checks.

02Authenticate

Available evidence is assessed before use. Warnings and missing information lead to a defined clarification process.

03Transfer

The handover records the parties, the documented condition and their confirmations. These remain linked to the transaction.

04Operate

Recorded maintenance and changes extend the product history. Authorized people can find the documents released for their work.

05Reuse

Existing condition and service records help assess further use. They do not replace the necessary technical inspection.

Security by Design

UID is a feature.
Cryptography is the proof.

AES & SDMDynamic, day-specific examination
ClientsClean separation of customers and roles
AuditTraceable security events
mTLS and MFAProtected machine and user access