Blockchain Document Version Control via Hash Verification
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Solution Overview
Problem
Centralized databases face issues such as single points of failure, dependency on network connectivity, limited access, and lack of data redundancy, which lead to inefficiencies and challenges in maintaining document trails across multiple organizations in blockchain-based supply chains.
Innovation Solution
A conflict-free document version control system utilizing a blockchain-based decentralized database, where nodes communicate to manage document access, versioning, and permissions through hash generation, blockchain transactions, and smart contracts, ensuring immutability and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a centralized database is used to store documents, then data management and control are simplified, but the system has a single point of failure and limited access simultaneously
Solution Approach 1:
The patent divides the centralized database into multiple distributed nodes across a blockchain network. Each node maintains a copy of the document ledger, eliminating the single point of failure while preserving coordinated control through consensus mechanisms. This segmentation allows the system to remain operational even if individual nodes fail.
Solution Approach 2:
The patent introduces smart contracts as intermediary automated protocols that mediate document access and version control between distributed nodes. These self-executing contracts enforce business rules and permissions without requiring centralized intervention, maintaining ease of control while enabling decentralized operation.
2Quantity of substance
If a centralized database maintains a single copy of data, then data redundancy is minimized, but multiple devices cannot access the same data simultaneously without creating conflicts
Solution Approach 1:
The patent creates multiple identical copies of the document ledger across distributed blockchain nodes. Each node maintains a complete copy of the immutable document history, enabling simultaneous read access from multiple devices without conflicts. Write operations are coordinated through consensus to maintain data integrity across all copies.
Solution Approach 2:
The patent implements preliminary versioning and hashing of documents before they are distributed across the network. Each document is assigned a unique version identifier and cryptographic hash in advance, allowing multiple nodes to process and validate document changes simultaneously without creating conflicts during access.
3Device complexity
If document versions are managed in a centralized system, then version control is straightforward, but data integrity and immutability are compromised
Solution Approach 1:
The patent replaces manual or centralized version control mechanisms with cryptographic hashing and blockchain consensus. Instead of relying on centralized authority to manage version integrity, the system uses mathematical proofs (hashes) and distributed consensus to automatically verify and enforce data integrity across all document versions.
Solution Approach 2:
The patent implements continuous feedback loops where each node verifies document hashes and version identifiers against the consensus ledger. Any attempted modification without proper consensus is detected through this feedback mechanism, maintaining immutability while allowing legitimate version updates through transparent, verifiable processes.
Data Source
AI summary
An example operation may include one or more of receiving from a user node, by a blockchain processor node, a document access request containing a document ID, acquiring, by the blockchain processor node, from a blockchain ledger an encrypted URL of the document and a source hash of the document based on the document ID, verifying, by the blockchain processor node, a document received from a document owner's node storage based on a decrypted URL of the document and, in response to the verification, transmitting the document received from the document owner's node storage to the user node.