Block chain-based lottery method and device, computer equipment and storage medium

Abstract

The invention discloses a block chain-based lottery method and device, computer equipment and a storage medium, and belongs to the field of block chains, and the method is executed based on a public block chain. The method comprises the following steps: acquiring a hash value of a newly generated block or a set number of newly generated blocks within a set time; calculating the obtained hash valuethrough an agreed algorithm to obtain a primary number; calculating the feature information through a public algorithm to obtain a feature value; enabling the primary number to be subjected to secondary calculation through a public algorithm to obtain a secondary number, and if the secondary number has the characteristic value, regarding that the secondary number is a bid winning number. According to the method, the randomness that a public block chain generates a new block is utilized, it is ensured that a bid winning number is random and cannot cheat, and meanwhile, the fairness and justiceof the whole number shaking process are achieved by utilizing the characteristic that the block chain is high in transparency; the feature information is calculated through a public algorithm to obtain a feature value; and in this way, the result of group control horn shaking with ultra-strong computing power can be prevented.

Description

technical field [0001] The present invention relates to the field of block chains, in particular to a block chain-based lottery method, device, computer equipment and storage media. Background technique [0002] Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. The consensus mechanism is a mathematical algorithm to establish trust and obtain rights and interests between different nodes in the blockchain system. Blockchain is the underlying technology of Bitcoin, like a database ledger, recording all transaction records. The characteristic of this system is that there are many sub-offices and nodes all over the world, and each node will maintain the same set of databases. This has led to the difficulty of maliciously tampering with data, and data loss is extremely rare, thus realizing a fair and transparent platform that solves the crisis of trust. [...

AI Technical Summary

Problems solved by technology

[0004] However, the random numbers of the computer lottery are all generated inside the computer, that is, the generation process of the random numbers is not really disclosed; the supervisor cannot confirm whether the random numbers used in the ranking process are provided by fraudsters or randomly generated by the computer, so It is also impossible to verify the fairness of the ranking results

Therefore, the lottery results may be tampered with by insiders or hackers, and there may be problems that may not be random, open, and unfair

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