Activity Logging Service Using Hash Ledger for Tamper-Proof Records
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Solution Overview
Problem
There is a challenge in providing a reliable and secure method to log and verify activities or locations of individuals over time, especially in scenarios where electronic data is lacking or unreliable, such as in criminal investigations.
Innovation Solution
An activity logging service that interfaces with observer devices to capture events and logs them securely using a hash ledger storage service, providing a tamper-proof record of activities through blockchain technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional electronic data storage is used to record location and activity, then the system is simple and easy to operate, but the reliability and security of the records are insufficient and can be easily tampered with
Solution Approach 1:
The patent introduces observer devices as intermediaries between the entity being tracked and the activity logging service. These observer devices independently capture and report activities, creating a distributed verification system that enhances record integrity without requiring complex centralized control mechanisms
Solution Approach 2:
The patent creates hash copies of activity logs and stores them in a hash ledger. These cryptographic copies serve as immutable verification records that can be independently checked without modifying the original logs, providing tamper-proof verification while maintaining system simplicity
2Measurement precision
If a secure hash ledger storage service is implemented to verify activities, then the verification accuracy and security are improved, but the system complexity and computational requirements increase
Solution Approach 1:
The patent replaces traditional mechanical or manual verification methods with cryptographic hash functions. The hash ledger uses cryptographic algorithms to create immutable verification records, providing high verification accuracy through mathematical principles rather than complex physical or procedural mechanisms
Solution Approach 2:
The patent transforms activity log data into hash values, changing the parameter representation from human-readable text to cryptographic digests. This transformation enables efficient and accurate verification through mathematical comparison while reducing the complexity of security validation procedures
Data Source
AI summary
Providing and using an activity logging service can include registering an activity logging service with a hash ledger storage service that can store a hash ledger that represents an activity log for an entity, and registering an observer device with the activity logging service. The observer device can provide event data to the activity logging service, and the event data can describe an event associated with the entity. The event data can be obtained from the observer device and a block that represents the event can be generated. A block can be added to the activity log, and a hash of a portion of the activity log can be generated and sent to the hash ledger storage service. The hash ledger storage service can be configured to append the hash of the portion of the activity log to the hash ledger that represents the activity log for the entity.