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Lottery drawing method based on block chain

A blockchain and block technology, applied in the blockchain field, can solve problems such as unfairness among participants, achieve randomness, and prevent changes to the normal procedure of the lottery.

Active Publication Date: 2020-03-24
HANGZHOU QULIAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the lottery field, the most important thing is the fairness of the lottery. Most of the current lottery methods are concentrated on centralized servers. With the improvement of technology, the algorithm of the lottery will be slowly reversed, and it is even easy to use The results are falsified, which is unfair to many participants

Method used

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  • Lottery drawing method based on block chain
  • Lottery drawing method based on block chain
  • Lottery drawing method based on block chain

Examples

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Embodiment

[0045] Before creating a lottery project, use the Solidity language to write the smart contract code, and then deploy the code on the blockchain for application system calls. When the event initiator (sponsor) A wants to do a lottery event, the smart contract is invoked through the application system, and the smart contract creates a lottery item based on the lottery event information provided by the application system. Here, the lottery information includes the event initiator (sponsor) The name A of the lottery, the name of the lottery activity (such as **charity lottery), registration rules, lottery rules, etc. The registration rules and lottery rules are similar to the existing rules and will not be repeated here. The lottery information can also include the activity status of the lottery, which is used to indicate whether the current activity status is registration, lottery draw or lottery closed state, or used to indicate how many prizes the lottery activity has currently...

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Abstract

The invention provides a lottery drawing method based on a block chain. The lottery drawing method comprises the following steps: creating a lottery drawing activity item as a first transaction to theblock chain according to lottery drawing activity information; receiving registration information sent by an activity participant according to the lottery activity project as a second transaction soas to send the registration information to a block chain; generating a winning position number according to a random number and a predetermined rule, and obtaining a corresponding lottery drawing number according to the winning position number to determine a winning participant; and checking the related information of the prize winners of the round of lottery drawing, sending the related information to the block chain, and feeding back the prize winning information to the activity participant. The random data is calculated to generate the random number, so that the generated random number is sufficiently hidden and unpredictable, all the data generated in the lottery drawing process is automatically recorded into the block chain by the smart contract, and everyone monitoring and fairness and justice are achieved.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a block chain-based lottery drawing method. Background technique [0002] In the lottery field, the most important thing is the fairness of the lottery. Most of the current lottery methods are concentrated on centralized servers. With the improvement of technology, the algorithm of the lottery will be slowly reversed, and it is even easy to use Results are falsified, which is unfair to many participants. Contents of the invention [0003] Aiming at the problems existing in the prior art, the present invention provides a blockchain-based lottery drawing method, which avoids the situation that the lottery result may be reversed or tampered with as the number of lottery draws increases. [0004] The purpose of the present invention is achieved through the following technical solutions: a blockchain-based lottery method, specifically comprising the following steps: [0005] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C15/00
CPCG07C15/006
Inventor 李伟梁秀波李启雷尹可挺邱炜伟代思宇
Owner HANGZHOU QULIAN TECH CO LTD
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