NFT-Based Decentralized DRM for Secure Data Streaming
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Solution Overview
Problem
Decentralized data delivery networks face challenges in protecting copyrighted content from piracy and infringement due to the lack of effective digital rights management (DRM) solutions, which is critical as internet video traffic grows and content providers seek to secure their intellectual property rights.
Innovation Solution
A decentralized data streaming and delivery network utilizing Non-Fungible Tokens (NFTs) on a blockchain for digital rights management, where a source cacher node broadcasts intentions to transmit a data stream, records a smart contract, and authenticates viewer nodes through NFT ownership to decrypt and receive the data stream, with incentives and rewards managed via a blockchain-based micropayment system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If decentralized peer-to-peer data delivery networks are used, then data distribution speed and robustness are improved, but content security and copyright protection deteriorate due to piracy concerns
Solution Approach 1:
The system performs preliminary authentication of viewer nodes using NFT ownership verification before allowing access to encrypted data streams. Smart contracts are pre-configured with encryption keys and access rules, enabling automatic authorization decisions before data transmission begins, thus preventing unauthorized access in decentralized P2P networks
Solution Approach 2:
The patent introduces blockchain technology as an intermediary layer between content providers and P2P network nodes. The blockchain ledger records and verifies NFT ownership, while smart contracts act as automated mediators that enforce DRM rules and manage key distribution, providing trustless copyright protection in the decentralized environment
2Reliability
If traditional centralized DRM systems are implemented, then content protection is improved, but system complexity and infrastructure requirements worsen
Solution Approach 1:
The system enables viewer nodes to autonomously authenticate themselves by presenting NFT proofs to smart contracts, which automatically verify ownership and grant access rights without requiring centralized DRM server intervention. This self-service mechanism simplifies the system architecture while maintaining strong content protection
Solution Approach 2:
The patent replaces traditional mechanical DRM infrastructure (centralized servers, license management systems) with cryptographic mechanisms based on blockchain and NFT technology. The immutable ledger and smart contract automation substitute for complex centralized DRM infrastructure, reducing system complexity while enhancing security
3Measurement precision
If NFT-based authentication is implemented, then access control precision is improved, but transaction overhead and processing time worsen due to blockchain operations
Solution Approach 1:
The system performs only the essential NFT ownership verification through smart contract queries rather than complete blockchain validation for every access request. This partial action approach maintains precise access control by verifying the critical authentication element (NFT ownership) while avoiding unnecessary blockchain operations, thus reducing transaction overhead
Data Source
AI summary
Methods and systems are described for implementing decentralized digital rights management (DRM) within a decentralized network, satisfying an important need of content owners. First, the method implemented by a source cacher node includes broadcasting, to one or more viewer peer nodes in the decentralized network, a notification of the source cacher node's intent to transmit a data stream. Then, recording a smart contract on a blockchain associated with the decentralized network, the smart contract associated with the data stream and allowing the authentication of a viewer peer node through the smart contract by an ownership of a non-fungible token (NFT) in order to receive a data key to decrypt the data stream. Next, receiving a request from an authenticated viewer peer node for receiving the data stream. Finally, generating an encrypted data stream based on the data stream and the data key to decrypt the data stream, and transmitting the encrypted data stream and the data key to the authenticated viewer peer node.