Types of Fingerprint Time Attendance Systems in China
Fingerprint time attendance systems have become a cornerstone of workforce management across China, offering efficient, accurate, and secure employee tracking. These systems leverage biometric data to eliminate time theft and streamline payroll processes. In the Chinese market, two primary classification methods are used: biometric identification approach and fingerprint collection technology. Understanding these types helps businesses select the most suitable solution based on security needs, user volume, and environmental conditions.
Based on Biometric Identification: Core Recognition Methods
These systems differ in how many fingers are used and the complexity of the identification process. The choice impacts accuracy, security, and scalability.
Single Finger Recognition
The foundational biometric technology, widely adopted in early Chinese time attendance systems. It captures and matches a single fingerprint per user, making it simple and cost-effective.
Advantages
- Low cost and easy to implement
- Fast processing and quick user authentication
- Ideal for small to medium-sized businesses
- Minimal training required for employees
Limitations
- Vulnerable to spoofing with fake fingerprints
- Lower accuracy if fingers are dirty or damaged
- Limited database capacity for large organizations
- Higher false rejection rates under poor conditions
Best for: SMEs, offices, schools, and environments with moderate security requirements
Multi-Finger Recognition
An advanced system that enhances security by requiring two or more fingerprints for verification. This method is increasingly popular in high-security Chinese enterprises and government institutions.
Advantages
- Significantly higher accuracy and reliability
- Strong resistance to spoofing and identity fraud
- Suitable for large employee databases
- Meets stringent compliance standards
Limitations
- Higher initial investment and maintenance cost
- Slower authentication process
- Requires more user cooperation and training
- Complex integration with existing HR systems
Best for: Financial institutions, government agencies, manufacturing plants, and high-security facilities
Flex Finger Recognition
A cutting-edge biometric approach developed in China that analyzes not only the fingerprint pattern but also the physical flexibility and shape of the finger, adding a dynamic layer to authentication.
Advantages
- Extremely difficult to spoof (liveness detection)
- High accuracy even with partial fingerprints
- Advanced anti-fraud capabilities
- Future-proof technology with AI integration potential
Limitations
- Premium pricing and limited vendor availability
- Requires specialized hardware sensors
- Potential accessibility issues for users with hand injuries
- Newer technology with fewer long-term performance studies
Best for: R&D centers, data centers, military installations, and tech-forward enterprises
Based on Fingerprint Collection Technology: Sensor Types
The method used to capture fingerprint data determines the system's durability, accuracy, and resistance to environmental factors. China's diverse climate and industrial environments make sensor choice critical.
Optical Time Attendance System
The most common and affordable type in China, using light reflection to capture 2D fingerprint images. Users place their finger on a glass or plastic platen.
Advantages
- Lowest cost per unit
- Simple design and easy maintenance
- Widely available and supported
- Durable surface resistant to minor scratches
Limitations
- Vulnerable to photo-based spoofing attacks
- Performance degrades with dirty, wet, or worn fingerprints
- Glass surface can be damaged or smudged easily
- Poor performance in low-light conditions
Best for: Offices, retail stores, and indoor environments with controlled conditions
Capacitive Time Attendance System
Uses an array of tiny capacitors to measure electrical differences between ridges and valleys of a fingerprint. This technology dominates mid-to-high-end systems in urban Chinese markets.
Advantages
- Highly resistant to spoofing (requires live tissue)
- Compact and sleek design
- Excellent performance with dry or slightly dirty fingers
- Long lifespan with no moving parts
Limitations
- Higher cost than optical systems
- Sensitive to electrostatic discharge (ESD)
- Can struggle with very dry or damaged skin
- Surface can degrade over time with heavy use
Best for: Corporate offices, tech companies, and high-traffic entry points
Ultrasonic Time Attendance System
The most advanced fingerprint technology, using high-frequency sound waves to create a 3D map of the fingerprint, including sub-surface skin layers. Gaining traction in premium Chinese installations.
Advantages
- Unparalleled accuracy and spoof resistance
- Works reliably with wet, dirty, or oily fingers
- Effective with users who have worn fingerprints
- Creates detailed 3D biometric templates
Limitations
- Most expensive option available
- Higher power consumption
- Limited availability and specialized support
- Slower processing speed compared to optical systems
Best for: Industrial sites, healthcare facilities, outdoor access points, and mission-critical security zones
| System Type | Security Level | Accuracy | Cost | Environmental Resilience |
|---|---|---|---|---|
| Single Finger (Optical) | Low | Medium | Low | Poor (sensitive to conditions) |
| Multi-Finger (Capacitive) | High | High | Medium-High | Good |
| Flex Finger (Advanced) | Very High | Very High | High | Excellent |
| Ultrasonic 3D | Very High | Very High | Very High | Excellent (works wet/dirty) |
Expert Tip: In China's humid southern regions or industrial environments, consider capacitive or ultrasonic systems over optical ones to maintain reliability. For maximum security, combine multi-finger recognition with liveness detection features to prevent sophisticated spoofing attempts.
Durability and Material of Fingerprint Time Attendance Systems
Understanding the Durability and Construction of China-Made Biometric Fingerprint Time Attendance Devices
Fingerprint time attendance systems have become essential tools in workforce management, offering secure, accurate, and efficient employee tracking. The longevity and performance of these systems depend heavily on the materials used and the durability of their core components—especially the fingerprint sensors. This guide explores the key sensor technologies used in Chinese biometric devices, their material composition, operational principles, and expected lifespan under various conditions.
Key Insight: The choice of fingerprint sensor technology directly impacts the device's resistance to environmental stress, wear and tear, and long-term reliability—critical factors for industrial, outdoor, or high-traffic applications.
Optical Fingerprint Scanners
Optical scanners are among the most widely used sensor types in China-manufactured time attendance systems. These devices operate by capturing a digital image of the fingerprint using a combination of a miniature camera and an illumination system. When a finger is placed on the scanner's glass surface, LED lights evenly illuminate the ridges and valleys of the fingerprint, and a CMOS or CCD sensor captures the reflected visible light to create a high-contrast image.
The quality of the captured image depends significantly on consistent and uniform lighting. Variations in illumination—such as shadows or glare—can distort the image, leading to recognition errors. However, modern optical scanners often incorporate advanced image processing algorithms and infrared (IR) filtering to enhance clarity and reduce false rejections.
One notable advantage of optical sensors is their ability to function effectively even with light finger pressure. While firm contact improves image resolution, these sensors can still capture usable prints under minimal touch, making them user-friendly in fast-paced environments. Additionally, they are less sensitive to dry or worn fingerprints compared to capacitive alternatives.
In terms of durability, optical scanners are considered the most robust option, with an average operational lifespan exceeding five years under normal usage. Their glass surface, though susceptible to scratches over time, can be protected with tempered coatings or replaceable overlays. Regular cleaning and protection from dust and moisture further extend service life, especially in harsh industrial settings.
Capacitive Fingerprint Sensors
Capacitive sensors represent a more advanced technology that relies on electrical conductivity rather than optical imaging. These sensors consist of an array of tiny capacitor circuits that measure the difference in electrical charge between the fingerprint ridges (which make contact) and valleys (which do not). This creates a precise topographical map of the fingerprint based on variations in capacitance across the sensor grid.
Because capacitive sensors detect the physical properties of the skin, they are generally more resistant to spoofing attempts using fake fingerprints or photographs. They also deliver higher resolution and faster response times compared to basic optical models, making them ideal for environments requiring enhanced security and throughput.
Material-wise, capacitive sensors are constructed with silicon-based microelectronic components and protective polymer layers that shield against moisture and minor abrasions. While not as physically rugged as optical units, they perform well in indoor environments and are highly resistant to vandalism when integrated into sealed housings.
These sensors typically last between three to five years, depending on usage frequency and environmental exposure. They may degrade faster in extremely dry or humid conditions, where skin conductivity fluctuates, but proper installation and routine maintenance can mitigate these issues.
Ultrasonic Fingerprint Scanners
Ultrasonic scanners utilize high-frequency sound waves to generate a 3D map of the fingerprint. When a finger is placed on the scanner, ultrasonic pulses penetrate the outer layer of the skin and reflect back differently from ridges and valleys. A receiver captures these echoes and reconstructs a detailed subsurface image of the fingerprint, including live tissue characteristics.
This technology offers superior accuracy and liveness detection, making it nearly immune to spoofing. It also performs reliably in challenging environmental conditions—such as extreme temperatures, high humidity, dirt, or moisture—where optical and capacitive sensors might fail.
Constructed with durable piezoelectric materials and protective cover layers, ultrasonic sensors are inherently more resilient. Their sealed design prevents dust and liquid ingress, enhancing longevity in outdoor or industrial deployments. As a result, they are often considered the most durable option available, particularly in next-generation Chinese biometric terminals designed for smart cities, construction sites, and logistics hubs.
Although currently more expensive than other types, ultrasonic sensors are gaining popularity due to their long service life, excellent hygiene (no residue buildup), and compatibility with gloves or wet fingers in certain configurations.
| Sensor Type | Primary Material | Avg. Lifespan | Environmental Resistance | Best Use Case |
|---|---|---|---|---|
| Optical | Tempered Glass, CMOS/CCD Sensor | 5+ years | Moderate (vulnerable to scratches) | Indoor offices, medium-traffic areas |
| Capacitive | Silicon, Conductive Polymer | 3–5 years | Good (sealed designs) | Secure facilities, access control |
| Ultrasonic | Piezoelectric Crystal, Sealed Composite | 5+ years (higher in optimal conditions) | Excellent (water, dust, temperature) | Outdoor, industrial, high-security zones |
Factors Influencing Longevity and Performance
Important: Always follow manufacturer guidelines for maintenance and avoid using harsh chemicals or abrasive materials on sensor surfaces. Using incompatible cleaning agents can damage protective coatings and void warranties. For mission-critical applications, consider investing in ultrasonic or industrial-grade capacitive sensors despite higher upfront costs, as they offer better long-term value through reduced downtime and replacement needs.
Commercial Value of Fingerprint Time Attendance Systems
Unlocking Efficiency and Cost Savings with China's Biometric Time Attendance Technology
Fingerprint-based biometric time attendance systems have revolutionized workforce management, particularly in China's rapidly evolving industrial and service sectors. These advanced systems offer significant commercial advantages by combining cutting-edge biometric technology with seamless integration into payroll and HR processes. This guide explores the key business benefits of implementing fingerprint time clocks, demonstrating how they transform attendance tracking from a manual, error-prone process into a strategic asset for organizational efficiency and cost control.
Eliminates Buddy Punching
One of the most pervasive issues in traditional timekeeping is "buddy punching," where employees clock in or out for absent colleagues. This unethical practice leads to payroll inflation and undermines workplace fairness. Biometric fingerprint systems completely eliminate this problem by authenticating each employee through their unique biological identifier.
- Fingerprint recognition ensures that only authorized personnel can log attendance
- Reduces payroll fraud that can cost companies 2-5% of total labor expenses annually
- Creates a culture of accountability and fairness among staff
- Provides audit trails for compliance and dispute resolution
Key benefit: A one-time investment in biometric hardware pays for itself within months by eliminating payroll leakage from time theft.
Accurate Time Tracking
Manual time cards and paper-based systems are inherently prone to errors, forgetfulness, and inaccuracies. Employees may forget to clock in/out, misreport break times, or make calculation errors. Biometric systems capture precise, tamper-proof records of employee attendance.
- Automatically records exact clock-in and clock-out times to the second
- Tracks break durations and overtime with complete accuracy
- Eliminates estimation and manual correction of time sheets
- Provides reliable data for project costing and labor analysis
Financial impact: Companies typically recover 2-4% of payroll costs through more accurate time tracking alone.
Simple Installation and User Adoption
Unlike complex enterprise software implementations, modern biometric time clocks are designed for rapid deployment and intuitive use. The learning curve is minimal, allowing organizations to realize benefits quickly after installation.
- Employees simply scan their fingerprint—no passwords or ID cards to remember
- Setup typically takes less than a day for most office or factory environments
- Modern devices feature user-friendly interfaces with visual and audio feedback
- Cloud-based systems enable remote configuration and management
Implementation advantage: Most employees become proficient within minutes, minimizing disruption to daily operations.
Improved Productivity
Biometric time tracking systems contribute to enhanced workplace productivity by removing friction from the attendance process and providing managers with actionable insights into workforce patterns.
- Employees spend seconds rather than minutes on time tracking procedures
- Managers gain visibility into attendance trends and punctuality issues
- Automated alerts can notify supervisors of chronic tardiness or absenteeism
- Data-driven insights help optimize shift scheduling and staffing levels
Operational benefit: Teams focus on core tasks rather than administrative timekeeping duties, boosting overall efficiency.
Reduces Administrative Work
Traditional timekeeping requires significant human intervention for data collection, verification, correction, and transfer to payroll systems. Biometric solutions automate this entire workflow, dramatically reducing the administrative burden on HR and management teams.
- Seamless integration with payroll software eliminates double data entry
- Automatic calculation of worked hours, overtime, and absences
- Real-time reporting capabilities for management decision-making
- Reduced need for manual audits and time sheet corrections
Time savings: HR departments typically reduce time tracking administration by 70-80% after implementation.
Additional Commercial Advantages
Beyond the core benefits, fingerprint attendance systems offer several strategic advantages that enhance their commercial value:
- Scalability: Easily accommodate workforce growth without additional administrative overhead
- Data Security: Encrypted biometric templates protect employee privacy
- Compliance: Simplifies adherence to labor laws and audit requirements
- Remote Management: Cloud platforms allow monitoring of multiple locations from a central dashboard
- Integration: Compatible with HRIS, ERP, and project management systems
Strategic insight: Attendance data can inform workforce planning, identify training needs, and support performance management.
Implementation Recommendation: When selecting a fingerprint time attendance system, prioritize devices with strong integration capabilities, reliable fingerprint sensors (especially for industrial environments), and comprehensive reporting features. Consider starting with a pilot program in one department to demonstrate ROI before organization-wide rollout. Look for Chinese manufacturers that offer robust technical support and regular firmware updates to ensure long-term system reliability.
| Business Challenge | Traditional Solution | Biometric Fingerprint Solution | Commercial Impact |
|---|---|---|---|
| Time Theft (Buddy Punching) | Manual supervision, honor system | Biometric authentication | Reduces payroll costs by 3-7% |
| Inaccurate Time Reporting | Manual time cards, spreadsheets | Automated timestamp capture | Improves payroll accuracy by 95%+ |
| Administrative Overhead | HR staff processing timesheets | Automated data transfer to payroll | Reduces admin time by 70-80% |
| Implementation Complexity | Lengthy training periods | Intuitive fingerprint scanning | Deployment in under 24 hours |
| Workforce Accountability | Reactive disciplinary measures | Real-time attendance monitoring | Increases on-time performance by 40%+ |
Maximizing Return on Investment
To fully realize the commercial value of fingerprint time attendance systems, organizations should:
- Choose systems with open APIs for seamless integration with existing payroll and HR software
- Implement change management strategies to ensure employee buy-in and address privacy concerns
- Regularly analyze attendance data to identify patterns and opportunities for operational improvement
- Select durable hardware suitable for the specific work environment (office, factory, outdoor, etc.)
- Negotiate service agreements that include maintenance, software updates, and technical support
By strategically implementing biometric time attendance technology, businesses can transform a basic administrative function into a powerful tool for cost control, operational efficiency, and data-driven decision making.
How To Choose the Best Fingerprint Time Attendance System
Selecting the right fingerprint time attendance system is crucial for businesses aiming to improve workforce management, reduce time theft, and streamline payroll processing. With numerous options available, it's essential to evaluate key technical and operational features that ensure reliability, security, and scalability. This guide outlines the most important factors suppliers and businesses should consider when choosing a high-performance fingerprint attendance solution.
Important Note: Biometric systems handle sensitive personal data. Ensure compliance with local data protection regulations (such as GDPR or CCPA) by implementing secure data storage, encryption, and clear employee consent policies.
Key Factors to Consider When Selecting a Fingerprint Attendance System
The following criteria will help you identify the most reliable, efficient, and scalable fingerprint attendance systems to offer or implement in your business environment.
1. Scanner Quality and Image Resolution
The quality of the fingerprint scanner directly impacts the accuracy and reliability of the entire system. High-resolution sensors (typically 500 dpi or higher) capture detailed ridge patterns and minutiae points—such as ridge endings, bifurcations, and island features—which are essential for precise biometric matching.
Low-resolution scanners produce blurry or incomplete images, increasing the likelihood of false rejections (where a valid user is denied access) or false acceptances (security risks). A high-quality scanner ensures:
- Accurate identification even with partial or worn fingerprints
- Faster processing due to reduced need for multiple scan attempts
- Better performance in challenging conditions (e.g., dry or oily fingers)
- Compatibility with various fingerprint templates and enrollment standards
Pro Tip: Look for optical or capacitive sensors with anti-spoofing coatings and scratch-resistant surfaces to enhance durability and prevent tampering.
2. Live Scanning (Liveness Detection)
Live scanning, also known as liveness detection, is a critical security feature that verifies whether the fingerprint being scanned comes from a living person rather than a fake or replicated print (e.g., silicone molds, printed images, or lifted latent prints).
This technology analyzes physiological characteristics such as blood flow, skin conductivity, or pulse detection to confirm the finger is alive. Systems equipped with liveness detection significantly reduce the risk of:
- "Buddy punching" (where one employee clocks in for another)
- Biometric spoofing using artificial replicas
- Unauthorized access through stolen or copied biometric data
Suppliers should prioritize systems with advanced liveness detection to offer clients a more secure and trustworthy attendance solution.
3. Template Capacity and Management
Template capacity refers to the number of unique fingerprint records a device can store internally. This is especially important for medium to large organizations or resellers serving diverse client sizes.
Entry-level systems may support 500–1,000 templates, while enterprise-grade devices can store 3,000–10,000+ templates. For growing businesses, scalability is key—choose systems that allow:
- Expansion via external databases or cloud integration
- Centralized management across multiple devices
- Efficient template compression without compromising accuracy
Additionally, advanced systems support template fusion—the ability to combine multiple fingerprint scans of the same finger into a single, more robust template. This improves recognition accuracy, especially for users with faint or damaged fingerprints, and reduces enrollment time.
4. Recognition Speed and Enrollment Efficiency
Speed is a major factor in user experience and operational efficiency. The best fingerprint systems identify a match in under one second (ideally 0.5 seconds or less), minimizing queues during peak check-in times such as shift changes.
Equally important is the enrollment speed—how quickly new employees can be added to the system. Fast enrollment reduces onboarding time and administrative burden. Look for systems that offer:
- One-touch enrollment with real-time feedback
- Guided user interface for first-time users
- Bulk import/export capabilities via USB or network
- Support for multi-finger registration (e.g., both index fingers) for redundancy
High-speed processors and optimized matching algorithms are essential for maintaining performance as the database grows.
5. Integration Capabilities with Existing Systems
A standalone fingerprint device has limited value if it cannot communicate with other business systems. The ideal attendance solution should seamlessly integrate with:
- Existing time and attendance software (e.g., ZKTime, BioTime, or custom HRIS)
- Payroll platforms (e.g., QuickBooks, ADP, or SAP)
- Access control systems for unified entry and time tracking
- Cloud-based platforms for remote monitoring and reporting
Integration is typically achieved through:
- Standard communication protocols (TCP/IP, RS485, Wi-Fi, Bluetooth)
- Software Development Kits (SDKs) and APIs for custom development
- Support for data export in common formats (CSV, XML)
Systems with open architecture and strong API support offer greater flexibility and future-proofing for evolving business needs.
| Feature | Recommended Standard | Benefits | Red Flags to Avoid |
|---|---|---|---|
| Scanner Resolution | 500 dpi or higher | High accuracy, low false rejection | Below 300 dpi, no anti-spoofing |
| Liveness Detection | Yes (capacitive or multispectral) | Prevents spoofing and buddy punching | No liveness check, basic optical only |
| Template Capacity | 3,000+ templates (scalable) | Suitable for growing businesses | Limited to 500 templates, no cloud sync |
| Recognition Speed | ≤1 second | Smooth user experience, no queues | Slower than 2 seconds, frequent retries |
| Integration Options | API, SDK, Cloud, HR/Payroll Sync | Seamless workflow automation | Standalone only, no export function |
Expert Recommendation: When sourcing fingerprint attendance systems, prioritize vendors that offer firmware updates, technical support, and compatibility with mobile management apps. These features enhance long-term usability and reduce maintenance costs.
Final Selection Checklist
- ✅ Does the scanner support high-resolution imaging and liveness detection?
- ✅ Is the template capacity sufficient for current and future needs?
- ✅ Can the system identify fingerprints in under one second?
- ✅ Does it support fast, user-friendly enrollment for new employees?
- ✅ Can it integrate with existing HR, payroll, or access control systems?
- ✅ Is the device built with durable materials for high-traffic environments?
- ✅ Does the vendor provide software support and security updates?
By carefully evaluating these factors, suppliers and businesses can select a fingerprint time attendance system that delivers accuracy, security, and long-term value. Investing in a high-quality, integrated solution not only improves operational efficiency but also strengthens workforce accountability and data integrity.
Frequently Asked Questions About Outdoor Fingerprint Attendance Systems
Yes, most modern fingerprint time attendance systems are specifically designed for outdoor deployment. These devices typically feature rugged, weather-resistant housings and advanced optical or capacitive fingerprint sensors that maintain high accuracy even in challenging environmental conditions such as rain, dust, and direct sunlight.
- Weather Resistance: Many outdoor models come with IP65 or higher ratings, meaning they are protected against dust ingress and low-pressure water jets from any direction.
- Sunlight Readability: Anti-glare screens and high-brightness displays ensure readability even under direct sunlight.
- Temperature Tolerance: Designed to operate in a wide temperature range (typically -20°C to 60°C), making them suitable for diverse climates.
When selecting a system for outdoor installation, always verify the manufacturer's environmental specifications to ensure compatibility with your location’s conditions.
The average lifespan of a fingerprint-based attendance system ranges from 3 to 5 years, depending on several key factors:
- Environmental Exposure: Systems installed in harsh environments (e.g., coastal areas with salt air or industrial zones with pollution) may experience faster wear and reduced longevity.
- Maintenance: Regular cleaning of the scanner lens, firmware updates, and protective casing inspections can extend device life significantly.
- Usage Frequency: High-traffic installations (e.g., large factories or construction sites) may see more wear on both hardware and software components.
- Build Quality: Premium models with reinforced casings and industrial-grade components often outlast budget alternatives.
With proper care and periodic servicing, some high-end models can remain functional and accurate beyond the 5-year mark, offering a strong return on investment.
Yes, many modern fingerprint attendance systems are engineered to operate reliably in extreme weather conditions. This resilience is achieved through a combination of design and material innovations:
| Weather Condition | System Capability | Design Features |
|---|---|---|
| Heavy Rain / Snow | Operational with minimal interference | Sealed enclosures, waterproof gaskets, drainage channels |
| Extreme Heat (up to 60°C) | Stable performance | Heat-dissipating materials, thermal shielding |
| Extreme Cold (down to -20°C) | Functional with slight response delay | Low-temperature tolerant circuits and displays |
| Dust & Sandstorms | Protected internal components | IP65/IP66 rated enclosures, filtered vents |
These systems are commonly used in industries such as construction, mining, and agriculture, where reliable time tracking is essential despite adverse weather.
Absolutely. When designed for outdoor use, fingerprint attendance systems offer robust security comparable to indoor systems—and sometimes even greater, due to enhanced tamper resistance:
- Biometric Accuracy: Fingerprint recognition prevents buddy punching and ensures only authorized personnel can clock in or out.
- Tamper-Proof Design: Outdoor units often include anti-vandal features such as reinforced casings, tamper alarms, and secure mounting brackets.
- Data Encryption: Most systems encrypt biometric data during transmission and storage, protecting user privacy and complying with data protection regulations.
- Real-Time Monitoring: Integration with cloud-based platforms allows administrators to monitor attendance in real time and receive alerts for suspicious activity.
Outdoor systems are trusted in high-security environments like government facilities, military bases, and critical infrastructure sites, where accurate identification is paramount.
No, the installation of a modern outdoor fingerprint attendance system is generally straightforward and user-friendly. Manufacturers design these systems for quick deployment with minimal technical expertise required:
- Plug-and-Play Setup: Many models support PoE (Power over Ethernet), allowing both power and data transmission through a single cable, simplifying wiring.
- Wireless Options: Wi-Fi or 4G-enabled devices eliminate the need for extensive cabling, making them ideal for remote or temporary sites.
- Mounting Flexibility: Wall-mount and pole-mount kits are usually included, enabling installation in various outdoor configurations.
- Configuration Tools: Web-based or mobile apps guide users through network setup, user enrollment, and integration with existing HR or payroll software.
Most systems can be fully operational within an hour of unboxing. For complex networks or enterprise deployments, technical support and professional installation services are often available from the vendor.








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