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Fast Verification of Hash Chains [PDF]
, 2004 A hash chain is a sequence of hash values x i = hash(x i − 1) for some initial secret value x 0. It allows to reveal the final value x n and to gradually disclose the pre-images x n − 1, x n − 2, ... whenever necessary. The correctness of a given value x i can then be verified by re-computing the chain and comparing the result to x n .
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Civil Engineering Design, Volume 7, Issue 1, Page 9-22, March 2025.Abstract Blockchain technology is a digital decentralized data ledger recording transactions in an encrypted format. Its implementation can potentially hold significant advantages for the built environment, particularly in manufacturing and building product usage aligned with Building Information Modeling (BIM). This paradigm shift toward decentralized
Aileen Pfeil +2 more
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The Depositional Record, EarlyView.Tsunami events over the past 500 years inundated Laguna Gemela West (Chile), leading to distinct sandy deposits in the lake record. This provides a complete perspective on tsunami inundation, including giant tsunamis, small local tsunamis and tsunamis that originated >100 km away from the site.
Jasper Moernaut +8 more
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Identification of Tetrahydrocannabidiol Metabolites in Human Urine
Drug Testing and Analysis, EarlyView.The detection of Phase I and II metabolites of tetrahydrocannabidiol (H4CBD) in urine after oral ingestion of 25‐mg H4CBD by a volunteer is described. The proposed metabolite structures are based on ESI+ spectra recorded by HPLC‐HRMS and EI spectra after trimethylsilylation recorded by GC–MS.
Willi Schirmer +3 more
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Analysis and Test of Storage Algorithm of Card Reader of Personnel Positioning System
Gong-kuang zidonghua, 2012 The paper analyzed three storage algorithms of chain storage algorithm, hash table storage algorithm and hash binary tree storage algorithm which are applicable to the card reader of personnel positioning system in term of search time and storage ...
ZHANG Feng, XU Zhao, ZHANG Kai-ting
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A Mobile-Oriented System for Integrity Preserving in Audio Forensics
Applied Sciences, 2019 This paper addresses a problem in the field of audio forensics. With the aim of providing a solution that helps Chain of Custody (CoC) processes, we propose an integrity verification system that includes capture (mobile based), hash code calculation and ...
Diego Renza +2 more
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Human Resource Management, EarlyView.ABSTRACT Frontline service workers are crucial to service delivery and have been a long‐standing focus of research, with scholars and practitioners alike maintaining an interest in their effective management. As technology increasingly transforms this context, the way in which managers in service organizations communicate with frontline workers has ...
Alexandra Budjanovcanin, Wei‐Ning Yang
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Supply chain dynamic multi-center coordination authentication model based on block chain
网络与信息安全学报, 2016 The value of block chain technology is proved by the success of Bitcoin. The characteristics, limitations and its chain structure Hash principle of block chain were analyzed, the applications of block chain technology were researched, the B2B+B2C supply ...
Jian-ming ZHU, Yong-gui FU
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Fair micropayment system based on hash chains
Tsinghua Science and Technology, 2005 Micropayment schemes usually do not provide fairness, which means that either the customer or the merchant, or both, can cheat each other and gain a financial advantage by misusing the protocols. This paper proposes an efficient hash chain-based micropayment scheme, which is an offline, prepaid scheme that supports simpler divisibility of digital coins.
Weimin Lang, Zongkai Yang, Yunmeng Tan
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Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.The major silk gene, h‐fibroin, was annotated in high‐quality genomes of two unusual case‐making Trichoptera. H‐Fibroin of Limnocentropus insolitus shows a similar amino acid composition to other case‐making species, while the amino acid composition of h‐fibroin of Phryganopsyche brunnea resembles that of retreat‐making species.
Xiling Deng +4 more
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