In the booming market of collectible sneakers, Joyabuy has launched a revolutionary authentication system for Adidas signature shoes. Their proprietary spreadsheet-based verification method combines vector analysis technology
The Vector Analysis Breakthrough
Joyabuy employs advanced vector analysis algorithms that examine 16 distinct signature characteristics, including stroke angle, pressure distribution, and curvature patterns. The system cross-references uploaded signature photos against a continuously updated database containing authenticated player signatures.

How the Identification System Works
- Consignment sellers upload high-resolution photos of box signatures
- Joyabuy spreadsheet generates vector maps of each signature element
- Dynamic database compares the submission to official signatures
- Authentication report itemizes 16 matching parameters
- Suspected replicas trigger deeper forensic examination
Benefits of Continuous Database Updates
Unlike static verification methods, Joyabuy live-spreadsheets incorporate newly discovered forged signatures—refining parameters to identify increasingly precise replica attempts. This adaptive approach results in +32% counterfeit detection versus previous authentication methods.4>
Ensure your purchase of limited-edition Adidas signed sneakers meets verification standards:
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