A multi-dimensional dynamic weighted digital asset probability lottery system and method

Abstract

This invention discloses a digital asset lottery method and system based on multi-dimensional dynamic weights, belonging to the field of blockchain technology and digital asset distribution. The method collects users' on-chain behavioral data and authorized off-chain social data, employing a dynamic weight engine to calculate the probability of winning. The weight calculation integrates entropy weighting, time decay functions, and game theory correction factors, enabling real-time responses to market changes and user behavior. The system includes an on-chain data acquisition module, an off-chain data oracle, and a smart contract execution module, ensuring fairness and transparency in the lottery process through a verifiable random function. The innovations of this invention are: the first-ever fusion calculation of on-chain and off-chain data; the establishment of a dynamic self-balancing weight adjustment mechanism; a built-in anti-manipulation detection algorithm to prevent cheating; and full-process verifiability through smart contracts. This technology can be widely applied to DeFi airdrops, NFT issuance, and blockchain game item distribution scenarios, significantly improving the intelligence and fairness of digital asset reward distribution and providing a novel incentive solution for the blockchain ecosystem.

Description

Technical Field

[0001] This invention relates to the fields of blockchain technology and digital asset distribution, specifically an innovative method for dynamic lotteries using smart contracts. The system makes the digital asset lottery process more fair, transparent, and efficient by calculating and adjusting multi-dimensional weighting factors in real time. Unlike traditional fixed-probability lotteries, this solution combines on-chain behavioral data such as user transaction frequency and asset holdings with off-chain data such as social activity to dynamically adjust the winning probability, achieving a more reasonable reward distribution. This technology can be widely applied to decentralized finance airdrops, digital collectible issuance, and blockchain game rewards, ensuring user participation while effectively preventing a minority from monopolizing winning opportunities. Background Technology

[0002] 1. Implementation schemes of existing technologies Currently, the digital asset lottery field mainly employs three technical solutions. The first is a lottery system based on simple random algorithms. These solutions typically use on-chain data such as blockchain block hashes or timestamps to generate random numbers, for example, determining the winning result by judging the parity of the hash value. Some advanced solutions use verifiable random functions to ensure the fairness of the randomization process. The second is a fixed-weight model. This solution allocates the winning probability according to a fixed proportion based on the user's digital asset holdings, such as the amount of cryptocurrency held, but it cannot be dynamically adjusted according to actual circumstances. The third solution attempts to correlate user behavior data with the lottery probability, such as using activity indicators like the number of user logins as a calculation basis. However, these methods often only consider data from a single dimension and lack the ability to comprehensively consider all factors. While these existing technologies each have their own characteristics, they all have certain limitations and cannot achieve a truly intelligent, multi-dimensional, and dynamic lottery mechanism.

[0003] 2. Disadvantages of existing technologies Current digital asset lottery technologies suffer from several significant shortcomings in practical applications. First, most of these systems employ static probability models, failing to dynamically adjust to market fluctuations or real-time user interactions. This results in an overly rigid reward distribution mechanism, ill-suited to complex and ever-changing real-world scenarios. Second, many systems using centralized random algorithms lack sufficient on-chain verification mechanisms, easily raising user concerns about the fairness of the lottery process and posing a risk of manipulation. Third, existing solutions often rely on a single data dimension, such as simply considering a user's asset balance or the number of times they participate in the lottery. This simplistic approach cannot comprehensively and accurately assess a user's actual value contribution. Most importantly, these technologies fail to establish an effective dynamic balancing mechanism. They cannot prevent large holders from monopolizing winning opportunities through financial advantages, nor can they achieve intelligent adjustment between inclusiveness and incentive effectiveness, severely impacting the fairness and sustainable development of the lottery system. Summary of the Invention

[0004] 1. Purpose of the invention This invention aims to overcome the technical limitations of traditional digital asset lotteries by innovatively constructing a multi-dimensional dynamic weighting mechanism to fundamentally solve key problems existing in current lottery systems. Addressing the shortcomings of rigid probability models in existing technologies, which struggle to adapt to real-time changes, this solution proposes a dynamically adjustable weighting algorithm, enabling the lottery mechanism to intelligently respond to market fluctuations and changes in user behavior. Simultaneously, by introducing an on-chain verifiable technical architecture, the transparency and auditability of the entire lottery process are ensured, eliminating user concerns about fairness. This invention not only aims to improve the intelligence level of reward distribution but, more importantly, to establish a new digital asset lottery paradigm that balances fairness, adaptability, and transparency, providing a more scientific and reasonable incentive solution for various blockchain application scenarios. Technical solution

[0005] This invention proposes a highly intelligent dynamic lottery system. Its core technology lies in the deep integration of multi-source heterogeneous data with on-chain smart contract mechanisms to achieve automatic management and fair allocation of the prize pool. The system first comprehensively collects user behavior data on the blockchain through a multi-dimensional data collection mechanism, including asset transfers, contract interactions, and NFT transactions. Simultaneously, it supplements this with off-chain data acquisition under user authorization, such as social media interaction frequency, content publishing activity, and community influence scores. Through this on-chain and off-chain data fusion approach, the system constructs a more comprehensive and dynamic user behavior profile.

[0006] The collected raw data is fed into a dynamic weight calculation engine. This engine, based on an improved entropy weighting method and combined with feature importance analysis from machine learning, assigns weights to data across different dimensions. The system incorporates a time decay function, giving higher weight to recent active behaviors, effectively improving the model's response sensitivity and real-time performance. Furthermore, to ensure the statistical fairness and reasonableness of the lottery results, a built-in game-theoretic correction mechanism is triggered when the system detects a bias in prize distribution or uneven user participation. This mechanism, based on dynamic game theory, automatically adjusts the weight combination of influencing factors, thereby stabilizing the overall reward distribution structure and preventing specific users or behavioral patterns from monopolizing the winning probability for a long period.

[0007] The entire weight calculation and prize allocation process is executed through smart contracts deployed on the blockchain, utilizing zero-knowledge proof technology to protect the privacy of key computational processes. This technical approach not only avoids the risk of leakage of sensitive user data but also makes the system verifiable and tamper-resistant, ensuring that every lottery draw is conducted under open and transparent rules.

[0008] The system also features a real-time feedback mechanism. After each draw, user profiles and behavioral characteristics are reassessed, and the weighted model is automatically iterated and updated based on new interaction data for continuous optimization. By using technical means to connect the entire chain of data collection, modeling and analysis, game theory correction, and contract execution, this system achieves a triple balance of fairness, efficiency, and privacy protection while ensuring randomness, pioneering a new paradigm for decentralized lottery mechanisms.

[0009] 3. Technological Innovation Points The technological innovation of this invention is mainly reflected in the construction of a truly intelligent dynamic lottery system. The core breakthrough of this system lies in the development of a multi-dimensional dynamic weighting algorithm, which can automatically adjust the probability distribution based on time-varying parameters such as real-time market popularity and user activity cycles, completely changing the limitations of traditional lottery systems' single-dimensional calculations. Particularly noteworthy is our innovative achievement of the organic integration of on-chain and off-chain data. While ensuring privacy and security, we have for the first time incorporated encrypted off-chain data such as social media activity into the weighting calculation system, significantly expanding the dimensions and depth of fairness assessment. Regarding anti-manipulation, the system incorporates an intelligent detection mechanism. By analyzing the entropy characteristics of users' historical behavior, it can accurately identify abnormal accounts such as those engaging in fraudulent activities and automatically reduce their weight. Simultaneously, a smart threshold trigger function is set up; when a single user's probability of winning exceeds a preset value, the system automatically diverts them to a secondary prize pool, effectively preventing reward concentration. Another major feature of the entire system is its high transparency and verifiability. All weighting calculation logic runs publicly on-chain through smart contracts, allowing any third party to verify the fairness of the probability generation process at any time. This fully transparent design concept sets a new technical standard for the digital asset lottery field. The organic combination of these innovations has enabled this system to achieve industry-leading levels in terms of fairness, security, and user experience.

[0010] 4. Application Scenarios The dynamic weighted lottery system designed in this invention has broad application prospects and can provide intelligent solutions for the distribution of digital assets in different fields. In the DeFi ecosystem, this system can revolutionize traditional airdrop reward mechanisms by comprehensively analyzing multiple indicators such as the duration of user liquidity provision, trading activity, and participation in governance proposals, thereby achieving precise dynamic allocation of rewards and better incentivizing valuable on-chain behavior. For NFT projects, this technology can build a fairer issuance lottery mechanism, incorporating users' actual contributions to the community, such as the quality of derivative works created and the number of new users invited, into the weighted calculation, giving members who truly contribute to community development a higher chance of winning. In blockchain gaming scenarios, the system can intelligently adjust the drop probability of rare items based on multi-dimensional data such as player combat time, task completion efficiency, and team collaboration performance, creating a more balanced game economy system. Particularly noteworthy is that this technology can also bridge the incentive systems of Web2 and Web3. Enterprises can securely integrate traditional data such as user shopping records from e-commerce platforms into the weighted model after privacy-preserving computation, achieving cross-ecosystem user incentives and introducing the advantages of blockchain technology to traditional business scenarios. These application scenarios fully demonstrate the universality and innovative value of the invention, and can meet the needs of different fields for fair, transparent and intelligent asset distribution. Attached Figure Description Figure 1 is the architecture diagram; Figure 2 is the core flowchart.

Claims

1. A digital asset lottery method with multi-dimensional dynamic weights, comprising the steps of collecting user on-chain behavior data and authorizing off-chain social data, calculating the user's winning weight through a dynamic weight engine, which is dynamically adjusted based on entropy weight method and time decay function, executing lottery logic using smart contracts, and generating winning results through a verifiable random function.

2. The method according to claim 1, wherein the dynamic weight engine includes a data standardization module for normalizing user behavior data, a weight allocation module for determining initial weights based on the entropy weight method, and a real-time adjustment module for triggering a threshold rebalancing mechanism based on the winning distribution.

3. A digital asset lottery system implementing the method of claims 1-2, comprising an on-chain data acquisition module to acquire user transaction records and asset holdings, an off-chain data oracle to securely acquire encrypted social data, and a smart contract execution module to solidify weight parameters and verify the fairness of the lottery.

Images