Prove Presence Without doubt
NFC proof of presence: verify that people were at specific locations at exact times using unclonable NFC tags. No app required — just tap and prove.
Demo kit: €19.90 plus shipping. The button opens a secure Stripe checkout.
Everything you need for Presence verification
A complete solution for tracking when and where people are present, with cryptographic proof that can't be faked.
Unclonable authentication
Each NFC tag has a unique cryptographic signature that cannot be copied or counterfeited. Guaranteed authenticity.
Location verification
Tags are fixed to specific locations. When someone verifies, you know exactly where they were — no GPS spoofing possible.
Dual verification modes
Users can authenticate via login credentials on their phone or with personal NFC badge cards — your choice.
Precise timestamps
Every verification is logged with exact date, time, and location data. Perfect for compliance and auditing.
Custom NFC badges
Order personalized NFC badges for your employees or customers. Each badge is uniquely tied to an identity.
Real-time analytics
Track verification patterns, generate reports, and gain insights into presence data across all locations.
Two ways to prove Presence
Choose the verification method that works best for your organization. Or use both — they work seamlessly together.
Login-Based verification
Users log into the tagbase Presence web app on their smartphone. When they tap an NFC tag, their identity is verified through their authenticated session.
- No dedicated mobile app needed
- Works on any NFC-enabled phone
- Secure login credentials
- Real-time identity verification
Ideal for employees with company devices or contractors
Badge-Based verification
Issue personalized NFC badge cards to employees or visitors.
- Instant tap-and-go verification
- Custom branded badge cards
- Unique cryptographic identity per badge
Ideal for factories, warehouses, and visitor management
Simple setup, powerful results
Get started in minutes with our straightforward implementation process.
Set up locations
Place unclonable NFC tags at strategic locations — entrances, checkpoints, work stations, or anywhere presence needs to be verified.
Choose verification method
Users can log in via web browser on their phone, or use a personalized NFC badge card.
Tap to Verify
Simply tap the phone to the NFC tag. The unique signature is verified instantly, proving physical presence.
Access records
View detailed logs showing who was where and when. Export reports for auditing, compliance, or operational insights.
Built for every industry
From corporate offices to healthcare facilities, presence verification solves real problems across industries.
Office & corporate
Track employee attendance, secure access verification, and ensure compliance with workplace policies.
Manufacturing
Verify worker presence at specific workstations, safety checkpoints, and quality control areas.
Logistics & warehousing
Confirm deliveries, track driver routes, and verify checkpoint completions across facilities.
Hospitality
Log housekeeping rounds, security patrols, and maintenance inspections with verifiable records.
Healthcare
Document patient visits, caregiver presence, and compliance with care protocols.
Education
Verify student attendance, exam hall presence, and facility access for improved accountability.
Ready to upgrade your presence tracking?
Start verifying presence at specific locations with unclonable NFC tags. No app required — just tap and prove.