Dendritic Identifier Stamping for Secure Supply Chain Authentication
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Solution Overview
Problem
The weak link in supply chain security is the non-secure connection between items and their information, typically in the form of machine-readable labels, which can be corrupted or compromised.
Innovation Solution
A method of forming dendritic identifiers on a substrate by compressing a drop of liquid between a stamp and a substrate, followed by separation, to create unique, stochastically branching patterns that enhance security and authenticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If machine-readable labels are used to connect items to information, then information connection is established, but security and resistance to corruption deteriorate
Solution Approach 1:
The stamping surface is designed with an asymmetric dendritic pattern that creates a unique, non-replicable identifier. When the liquid is compressed and released, the asymmetric geometry of the stamping surface produces a distinctive branching pattern that cannot be easily copied or forged, thereby enhancing security while maintaining relatively simple implementation
Solution Approach 2:
The invention changes the physical state of the liquid from liquid to solidified form through compression and drying. This parameter change allows the liquid to flow and fill the dendritic pattern during stamping, then maintains the precise geometric pattern once solidified, creating a secure identifier that combines fluid adaptability with structural precision
2Manufacturing precision
If liquid is compressed between stamp and substrate, then unique dendritic pattern is formed, but manufacturing process complexity increases
Solution Approach 1:
The liquid material performs self-service by automatically filling the dendritic cavity pattern of the stamping surface through capillary action and flow during compression. The liquid self-adjusts to the precise geometric features of the stamp, eliminating the need for complex alignment mechanisms or additional shaping steps, thereby achieving high precision with relatively simple manufacturing
Solution Approach 2:
The liquid undergoes phase transition from liquid state to solidified state during the stamping process. This phase change allows the material to flow and conform to the stamping surface geometry during compression, then maintain the precise dendritic pattern after release and drying, achieving high manufacturing precision through the natural properties of phase transition
3Reliability
If dendritic identifiers are used instead of machine-readable symbols, then security against corruption is improved, but ease of reading and verification deteriorates
Solution Approach 1:
The dendritic identifier serves as an intermediary between the physical item and the digital information system. The unique pattern is captured by imaging equipment and transmitted to a database for verification, mediating the connection between physical goods and information tracking while maintaining security. This intermediary approach preserves ease of operation through automated imaging and database comparison rather than manual verification
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The dendritic identifiers provide a secure and unique pattern that enhances the integrity of supply chain information, making it resistant to corruption and ensuring the chain of trust is strengthened.
Implementation Method 1
compressing the drop of liquid between a surface of a stamp and a surface of a substrate to yield a dendritic identifier
Data Source
AI summary
Making a dendritic identifier includes compressing a drop of liquid between a surface of a stamp and a surface of a substrate, and separating the stamp and the substrate to yield a dendritic identifier on the surface of the substrate.