Smart Contract Registry for Dynamic Subscription Notifications
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Solution Overview
Problem
Conventional blockchain systems lack the ability to efficiently notify subscribers of changes to smart contracts, as they are immutable and do not allow for editing of transactions, which limits the dynamic management of subscriptions and parameter changes.
Innovation Solution
Implementing a smart contract registry that allows for subscription management and notification of changes by adding registry entries for requestors and subscribers, and enabling edit transactions (ETX) to modify blockchain parameters, thereby allowing dynamic notification of subscribers to changes in smart contract parameters or properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If blockchain systems are made immutable to ensure integrity, then reliability is improved, but the ability to notify subscribers of changes is lost
Solution Approach 1:
The patent segments the blockchain system into two distinct parts: the immutable ledger that stores transaction history and ensures integrity, and a separate subscription management mechanism that enables change notification. This segmentation allows the blockchain to maintain its immutable nature while the subscription system operates independently to handle notification requirements.
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of a subscription registry and event emission system. When a smart contract parameter changes, the system emits events that are recorded in the subscription registry, which then notifies relevant subscribers. This intermediary layer bridges the immutable blockchain with the dynamic notification requirements without compromising either aspect.
2Device complexity
If conventional blockchain systems are used without edit transactions, then system simplicity is maintained, but dynamic management of subscriptions and parameter changes is limited
Solution Approach 1:
The patent introduces dynamic capabilities to the blockchain system through edit transactions (ETX) that allow parameters to be modified after deployment. This dynamic mechanism enables the system to adapt to changing requirements while maintaining a relatively simple overall structure. The edit transaction system works seamlessly with existing smart contract frameworks, adding flexibility without significant complexity overhead.
3Adaptability or versatility
If edit transactions are implemented to allow parameter changes, then adaptability is improved, but the traditional immutable blockchain characteristic is compromised
Solution Approach 1:
The patent segments the blockchain into immutable transaction records and a separate edit transaction system. Traditional transactions remain immutable and form the basis of the ledger, while edit transactions are handled through a distinct mechanism that maintains compatibility with the immutable structure. This segmentation preserves blockchain immutability for core transactions while enabling parameter edits through the ETX framework.
Solution Approach 2:
The patent implements parameter changes through a dedicated edit transaction mechanism that modifies smart contract parameters without altering the fundamental immutable nature of the blockchain. The ETX system changes parameters by creating new state representations while maintaining the historical immutability of the original transactions, thus reconciling adaptability with immutability.
4Adaptability or versatility
If a subscription registry is added to enable change notifications, then subscriber notification capability is improved, but system complexity increases
Solution Approach 1:
The patent designs the subscription registry to serve multiple functions: it stores subscription information, tracks parameter changes, emits events, and manages notifications. By making this component multi-functional, the system achieves comprehensive subscriber notification capability without proportionally increasing complexity. The same registry structure handles various operations including subscription registration, change detection, and event dissemination.
Data Source
AI summary
The disclosed technology is generally directed to smart contract technology. In one example of the technology, responsive to a smart contract subscription request from a requestor to a first smart contract, a registry entry is added to a first smart contract registry such that the added registry entry includes requestor information associated with the requestor, and subscription information associated with at least one exposed interface of the first smart contract. Responsive to a change occurring that is associated with at least one exposed interface of the first smart contract, based on the registry, any subscribers to the first smart contract that have a subscription to which the change pertains are determined. Responsive to determining subscribers to the first smart contract that have a subscription to which the change pertains, the determined subscribers are caused to be notified of the change.