Digital Asset Authorization Using Ledger-Based Ownership Proof
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Solution Overview
Problem
There is a need to provide greater certainty to collectors that they are dealing with the authentic creator or owner of a digital asset, as digital media can be easily copied and reproduced, and blockchain-based ownership and provenance systems are vulnerable to false claims.
Innovation Solution
A method and system that utilize a digital asset server, a presentation device, and an authorisation device, secured by cryptographic key pairs and a distributed ledger, to ensure that only the authorized owner or creator can present a digital asset, using biometric and private information for authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If digital media is stored as files and made accessible to third parties, then ease of access and presentation is improved, but the risk of copying and false ownership claims increases
Solution Approach 1:
The patent introduces an intermediary authentication system consisting of a blockchain ledger and cryptographic key pairs. The controller holds private keys that sign authentication messages, while public keys are stored on the blockchain. This intermediary verification layer allows third parties to access digital assets while maintaining authenticity through cryptographic proof, resolving the contradiction between ease of access and reliability of verification.
2Reliability
If blockchain technology is used to store digital asset data, then reliability of ownership proof is improved, but the complexity of the system increases
Solution Approach 1:
The patent extracts the complex blockchain infrastructure from the user-facing interface. The controller manages the cryptographic key pairs and blockchain interactions locally, while the public keys and asset data are stored on the public blockchain. This extraction allows third parties to access assets through simple public key verification without needing to understand or interact with the complex blockchain underlying architecture, thus improving reliability while managing system complexity.
3Ease of operation
If digital assets are made publicly accessible, then ease of presentation is improved, but the ability to prevent unauthorized copying increases
Solution Approach 1:
The cryptographic authentication system acts as an intermediary between the digital asset and the third party. The controller signs authentication messages with private keys, and these signed messages are verified using public keys stored on the blockchain. This intermediary verification mechanism allows public access to assets while preventing unauthorized copying, as only the controller with the private key can generate valid authentication proofs.
Data Source
AI summary
The system includes an authorisation device controlled by a controller of the digital asset and stores an authorisation public/private key pair and a digital asset public/private key pair. The system further includes a digital asset server storing the digital asset, and a digital asset presentation device. The digital asset presentation device stores a digital asset pointer relating to a location of data in a distributed ledger, the data relating to the digital asset including the location of the digital asset on the digital asset server. The authorisation key pair is used to grant authorisation to access the digital asset pointer stored on the digital asset presentation device to locate the digital asset data on the distributed ledger. The digital asset key pair is used to grant authorisation to access the digital asset on the digital asset server for presentation by the digital asset presentation device.