The sneaker resale market continues to grow, but with it comes an increasing number of counterfeit products. Recognizing this challenge, JoyabuySpreadsheet Signature Verification Program

How the Joyabuy Dynamic Signature Database Works

This authentication system leverages vector analysis technology

  1. Joyabuy collaborates with authorized dealers and athletes to collect verified signature samples.
  2. These samples are processed into a digital format and stored in a secure cloud-based spreadsheet.
  3. When a reseller lists signed sneakers, they submit high-resolution photos of the shoebox signature.
  4. The system scans the signature and generates a vector analysis report comparing 16 key parameters such as stroke angle, pressure distribution, looping patterns, and transition smoothness.

Why Vector Analysis Outperforms Traditional Authentication

Unlike manual authentication methods, Joyabuy’s approach eliminates human error by using algorithms to measure micro-details normally invisible to the naked eye. Tests show:

  • 92% accuracy
  • Authentication completed within 90 seconds
  • Continuous improvement: The database updates weekly with new verified signatures to stay ahead of forgery techniques.

Trust Through Transparency

Every authentication report includes a breakdown of the analysis, highlighting areas where the signature matches or deviates from verified samples. Buyers can access these reports before purchasing, and sellers receive detailed quality ratings affecting their store credibility scores.

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