Proof of Work via Printing and Scanning RGB Images
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Solution Overview
Problem
Blockchain technology, particularly in proof-of-work mechanisms, consumes excessive energy due to computational requirements, necessitating a reduction in energy consumption for secure transaction processing across various fields like financial services, healthcare, and cryptocurrencies.
Innovation Solution
A computer-implemented method utilizing a printing device to generate and validate blockchain blocks by converting cryptographic hash values into colored pixels, iteratively adjusting printer settings to match a task digital image, thereby leveraging 'printing efforts' instead of computational efforts to achieve proof-of-work.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional computational proof-of-work is used, then blockchain security is maintained, but energy consumption increases excessively
Solution Approach 1:
The patent replaces the computational proof-of-work mechanism with a physical printing-based verification system. Instead of using computational power to solve cryptographic puzzles, the system uses printing devices to physically generate images from hash values and scanning devices to verify them. This substitution of computational processes with physical mechanical processes fundamentally changes the energy consumption profile while maintaining the security requirements of blockchain proof-of-work.
2Reliability
If computational power is increased to maintain blockchain security, then proof-of-work validation becomes more secure, but energy consumption increases
Solution Approach 1:
The patent replaces computational verification with physical printing and scanning verification. The printing device generates images based on hash values using physical pigment deposition, and the scanning device optically verifies these images. This mechanical-physical verification process eliminates the need for increasing computational power while maintaining or enhancing security, as the physical act of printing creates verifiable evidence that cannot be computationally forged.
3Use of energy by moving object
If printing and scanning processes are implemented, then energy consumption is reduced, but device complexity increases
Solution Approach 1:
The patent leverages the universality of existing printing and scanning technologies, which are already widely deployed in various forms. By utilizing standard printing devices (inkjet, laser, thermal) and scanning devices (flatbed, sheetfed) that perform multiple functions in their respective domains, the system avoids creating entirely new specialized equipment. This multi-functionality approach reduces overall system complexity while achieving the energy reduction goals.
Solution Approach 2:
The patent introduces physical images as an intermediary between the computational blockchain system and the verification process. The printing device creates physical image representations of hash values, and the scanning device converts them back to digital form for verification. This intermediary physical layer simplifies the verification process by providing tangible, verifiable evidence that is easier to validate than raw computational data, thereby reducing system complexity.
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
This approach significantly reduces energy consumption by transforming the energy-intensive computational process into a physical printing and scanning process, potentially lowering energy usage by a factor of 1000 and minimizing costs associated with pigment usage.
Implementation Method 1
a printing device be configured for receiving a digital image and for depositing a blend of pigment particles representing the digital image onto a substrate
Implementation Method 2
a scanning device be configured for detecting the physical image and for converting the physical image into a second digital image data set
Data Source
AI summary
Computer implemented method for proof-of-work for generating and validating a block of a blockchain, also denoted as consensus mechanism, using at least one printing device, wherein the printing device is configured for generating at least one digital image depending on a printer control setting, the method comprises the following steps:i) (110) providing a cryptographic hash value;ii) (112) generating at least one initial digital image (114) comprising a plurality of colored pixels (116), wherein the initial digital image (114) is generated by converting at least one part of the cryptographic hash value into color values of the colored pixels (116);iii) (118) generating a task digital image (120) comprising a plurality of colored pixels (122) different from the initial digital image (114);iv) (124) selecting a mining printer control setting (126), printing the initial digital image (114) by using the printing device by mixing and/or blending pigments with the selected mining printer control setting and scanning the printed image by using at least one scanning device, thereby generating a mining digital image having a plurality of colored pixels different from the initial digital image (114);v) (128) comparing the colored pixels of the mining digital image and the task digital image (120) by using at least one processing device;wherein the method comprises repeating steps ii) to v) until the colored pixels of the mining digital image and the task digital image (120) are found to be identical,wherein in each case in step iv) (124) a different mining printer control setting (126) is selected, wherein the mining printer control setting (126) for which the mining digital image and the task digital image (120) are found to be identical at least within tolerances is used as the proof-of-work for generating and validating the block of the blockchain.