SHA-256 in Parallel Blockchain Technology: Storing Land Related Documents

Jahan, Fariha; Mostafa, Mayel; Chowdhury, Shahrin

doi:10.5120/ijca2020920911

Cited by 3 publications

(2 citation statements)

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“…Regarding storing spatial data and BCT, one proposition was made in [52] where it is suggested to divide the surface of Earth to 3m-by-3m squares with unique IDs that will represent a unit of transactions. In [53] it is concluded that it is possible to store land administration data in parallel blockchains. This is interesting because BCT is not considered suitable for storing a high volume of data, such as spatial data.…”

Section: Literature Reviewmentioning

confidence: 99%

Smart Contract Application for Managing Land Administration System Transactions

et al. 2022

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Land administration systems are of great importance for a large number of stakeholders. One of the key problems related to land administration systems is the problem of the correctness of their state, meaning that data stored in land administration systems are not in concordance with the actual legal, spatial and topographic situation. The main causes of land administration systems' incorrect state are data collection and compilation, data processing, and data misuse. In this paper, we discuss the problems of data tampering, the long time needed for registering land administration system's transactions, and the possibility of double spending, which all can add incorrectness in a land administration system. Our research is based on the hypothesis that these problems may be addressed by means of distributed ledger technology, or to be more precise, by means of blockchain technology. The solution is presented in a form of a smart contract written in Solidity programing language that can cover even those more specific use cases in land administration systems such as sharing of ownership, transferring part of ownership, splitting or merging of real estate, and limiting the possibility of trading a real estate. The proposed smart contract represents an implementation of a programming interface that was created based on both ERC-20 and ERC-721 token standards, to satisfy the specific needs of land administration systems.INDEX TERMS Blockchain, Ethereum, land administration, real estate, smart contract.

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Section: Literature Reviewmentioning

confidence: 99%

Smart Contract Application for Managing Land Administration System Transactions

et al. 2022

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“…Other participants can then verify the validity of the block by checking its association with the previous block and confirming that it satisfies the network's required properties. Consensus is achieved when all participants have the same set of blocks, forming the longest blockchain [9]. Hashes are also instrumental in verifying data integrity and facilitating the cryptographic signature process.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the application of expert systems

Sharipbay,

Umutkulov,

Bektemyssova

et al. 2023

Bulletin of the Nat. Eng. Ac. of the RK

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This article offers an overview of expert systems, identifies their advantages and disadvantages. The main advantages of expert systems are the ability to use expert knowledge to solve problems in automatic mode, which allows you to reduce the time and cost of solving a problem, as well as improve the quality of decisions made. However, there are also disadvantages, such as limitations in the use of only those knowledge that was embedded in the system at the stage of its development, which can lead to errors if the knowledge is outdated or insufficient. In addition, developing and supporting expert systems can be expensive and challenging. However, expert systems continue to develop and find application in various fields, which allows you to increase the efficiency and quality of solving problems, as well as increase the speed of solving them. This article reviewed modern expert systems as: “Intelligent medical differential diagnostic system based on expert systems,” “Dermatological expert system implementing ABCD,” “Hybrid recommendation system for recommendations of relevant films using an expert system” Their model construction, knowledge base formation and user interface are analyzed. The importance of their development, their effectiveness and the need for implementation as an information system are also discussed.

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