LedgerPub Date : 2024-06-07DOI: 10.5195/ledger.2024.302
Brett Bourbon, R. Murimi
{"title":"Decentralization, Blockchains, and the Development of Smart Communities in Economically Challenging Environments","authors":"Brett Bourbon, R. Murimi","doi":"10.5195/ledger.2024.302","DOIUrl":"https://doi.org/10.5195/ledger.2024.302","url":null,"abstract":"\u0000\u0000\u0000Current implementations of blockchain technologies for smart cities assume environments with ample socio-technical resources. In this paper, we analyze four particular cases to show how blockchains can be used to create smart communities within under-developed and resource-poor environments. In these contexts, blockchains were critical in developing and maintaining trust within the community while meeting specific social needs. Our analysis of these specific cases was then used to derive a definition of a “smart community”. We provide a schematic outline of the foundational elements for the development of smart communities using blockchain technology. The goal of our paper is to show that blockchains hold promise not just for building smart cities in resource-rich contexts, but also for building smart communities in resource-impoverished contexts using a bottom-up, problem-driven approach.\u0000\u0000\u0000","PeriodicalId":36240,"journal":{"name":"Ledger","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141373495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LedgerPub Date : 2024-01-11DOI: 10.5195/ledger.2023.332
Richard Ford Burley
{"title":"A Note from the Editors","authors":"Richard Ford Burley","doi":"10.5195/ledger.2023.332","DOIUrl":"https://doi.org/10.5195/ledger.2023.332","url":null,"abstract":"","PeriodicalId":36240,"journal":{"name":"Ledger","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139533412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LedgerPub Date : 2023-12-19DOI: 10.5195/ledger.2023.294
Derek Sorensen
{"title":"Tokenized Carbon Credits","authors":"Derek Sorensen","doi":"10.5195/ledger.2023.294","DOIUrl":"https://doi.org/10.5195/ledger.2023.294","url":null,"abstract":"Blockchains are well-suited for tokenizing, trading, and retiring voluntary carbon credits. However, tokenized carbon credits are a heterogeneous body of tokens on the blockchain, which hampers some key goals of the industry. We give a detailed exposition of the current state of tokenized carbon credits and the surrounding blockchain-based ecosystem, with the goal of clarifying current impediments to token interoperability and trading with high liquidity.","PeriodicalId":36240,"journal":{"name":"Ledger","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138959784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LedgerPub Date : 2023-12-06DOI: 10.5195/ledger.2023.289
Edward Gotham
{"title":"Irrational Economic Action: Running a Bitcoin Lightning Node for Negative Profit","authors":"Edward Gotham","doi":"10.5195/ledger.2023.289","DOIUrl":"https://doi.org/10.5195/ledger.2023.289","url":null,"abstract":"Bitcoin’s layer 2 (L2) solution is a payment channel network (PCN) that has an internal market of its own. Businesses (node operators) compete on a cost basis to maximize use of their locked liquidity by minimizing channel fees. From an economic perspective this is a standard profit maximization problem, however as described in Béres, Seres, and Benczúr (2021), profit on node operation is so low that it is economically irrational. Despite this, the number of nodes continues to grow, even as the price of Bitcoin declines. Many node businesses likely operate at a net USD loss, especially when factors such as labor and loss of access to capital are considered. This paper is an economist’s account of entering into an apparently irrational market. Due to difficulties with surveying node operators, the primary objective of the paper, uncovering the reason for financial loss making activity, was not discovered, however this paper is the first to: describe the internal L2 market for routing; provide basic business balance sheet items for a median scale node; describe the on-boarding process of node operation; and identify the need for differentiation of personal/routing/hybrid nodes.The market for routing is near-perfect in terms of internal competition, but sub-optimally arranged. Operating losses that many node operators face appear to be rationalized as a “fiat only” loss, node operators exist within a Bitcoin-only profit paradigm. Computing the actual fiat profit margin is not possible, due to insufficient data regarding the average fiat cost of the bitcoin deposited to provide routing liquidity.","PeriodicalId":36240,"journal":{"name":"Ledger","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138594903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LedgerPub Date : 2023-07-25DOI: 10.5195/ledger.2023.288
Muhammad Imran Sarwar, Kashif Nisar, Imran Khan, Danish Shehzad
{"title":"Blockchains and Triple-Entry Accounting for B2B Business Models","authors":"Muhammad Imran Sarwar, Kashif Nisar, Imran Khan, Danish Shehzad","doi":"10.5195/ledger.2023.288","DOIUrl":"https://doi.org/10.5195/ledger.2023.288","url":null,"abstract":"A blockchain is a distributed ledger (DL) that records and tracks of transactions on a P2P network. It was originally designed for cryptocurrencies, but it is now used in healthcare, supply chain management, finance, and many more fields due to its security and trustworthiness. Trust and security are critical factors in any business, and the B2B model is no exception. In businesses, trust becomes more critical when the stakes are higher and the relationships are more complex. Centuries-old Double-Entry Accounting (DEA) is still used as an underlying accounting practice, and its reliability and efficiency are beyond question. But a critical review of DEA reveals that it lacks support for B2B transactions, as the two parties maintain their accounting books without cross-checks and verifications that may lead to an implausible situation. Triple-Entry Accounting (TEA) is an emerging accounting practice introduced in the recent past to overcome the limitations of DEA. It only applies if an outside person or business is involved in a transaction and is not meant to record any internal business transactions. Recording transactions on a blockchain and entering the third transaction via TEA are conceptually the same. The potential of blockchain-based TEA can address the challenges of the B2B business model and overcome some specific limitations of DEA. This study aims to survey the current state of the adaptation of blockchains and TEA in B2B transactions. The methodology used in this study can be classified as exploratory qualitative research and is based on the latest literature on the topics. The findings of this study would deepen our understanding of blockchains and TEA for B2B transactions as they highlight new opportunities and challenges.","PeriodicalId":36240,"journal":{"name":"Ledger","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48971533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LedgerPub Date : 2023-04-07DOI: 10.5195/ledger.2023.283
Jae-Hwi Cho
{"title":"A Token Economics Explanation for the De-Pegging of the Algorithmic Stablecoin: Analysis of the Case of Terra","authors":"Jae-Hwi Cho","doi":"10.5195/ledger.2023.283","DOIUrl":"https://doi.org/10.5195/ledger.2023.283","url":null,"abstract":"\u0000\u0000\u0000The collapse of Terra's algorithmic stablecoin UST shocked the cryptocurrency market. This study investigates the underlying causes of the de-pegging event through an in- depth analysis of the token economics of the Terra blockchain. Using on-chain data, this study identifies a misalignment in the economic incentive structure of the blockchain protocol as a key contributor to the de-pegging. It is found that an undercompensation of UST when it was redeemed played a significant role in the de-pegging event, with the UST price on cryptocurrency exchanges following the redeemed value of UST that users could obtain by swapping UST for LUNA and selling it on the market. The results highlight the importance of properly designing the incentive structure of blockchain protocols to ensure their sustainability and security.\u0000\u0000\u0000","PeriodicalId":36240,"journal":{"name":"Ledger","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48581027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LedgerPub Date : 2023-02-27DOI: 10.2139/ssrn.4205879
Matthew Tiger McDonald, K. S. Hayibo, Finn Hafting, J. Pearce
{"title":"Economics of Open-Source Solar Photovoltaic Powered Cryptocurrency Mining","authors":"Matthew Tiger McDonald, K. S. Hayibo, Finn Hafting, J. Pearce","doi":"10.2139/ssrn.4205879","DOIUrl":"https://doi.org/10.2139/ssrn.4205879","url":null,"abstract":"Solar photovoltaic (PV) technology offers a promising means to alleviate environmental and electricity costs challenges for cryptocurrency miners. To analyze this promise, this study investigated the feasibility of using electricity from individually optimized PV systems to power: 1) an individual Bitcoin miner, 2) a DIY intermodal shipping container holding 50 miners, and 3) a commercial mining farm container holding 408 miners. In a controlled lab environment, miners were monitored for electricity use. Then using these values, numerical simulations of both the PV system yield and sensitivity ranges based on the Bitcoin price, Bitcoin halving events, and miner hardware were investigated for informed financial planning. In addition, sensitivity for geographic locations in North America, utility electric rates and PV capital costs were analyzed. The profitability and return on investment (ROI) varied by location primarily because of the geographic distribution of solar flux and utility rates. The ROI for using PV with Bitcoin mining was found to be negative for Toronto and Montreal because of low-cost electricity, while it was 8% for Calgary. In the U.S. cities evaluated, the ROIs were substantial and ranged from 34% in New York, to 64% in Boulder, and up to 104% in Los Angeles. Although the study is based in North America regarding energy rates, climate, and energy laws, the analysis methodology is generalizable globally and grants the average cryptocurrency business the knowledge to make an informed decision on whether to pursue this venture from a financial and environmental perspective. This study contributes to the body of knowledge in cryptocurrency mining by providing an economic means of environmental preservation by powering cryptocurrency miners with renewable solar energy.","PeriodicalId":36240,"journal":{"name":"Ledger","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48160301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LedgerPub Date : 2023-02-27DOI: 10.5195/ledger.2023.278
Matthew Tiger McDonald, Koami Soulemane Hayibo, Finn Hafting, Joshua Pearce
{"title":"Economics of Open-Source Solar Photovoltaic Powered Cryptocurrency Mining","authors":"Matthew Tiger McDonald, Koami Soulemane Hayibo, Finn Hafting, Joshua Pearce","doi":"10.5195/ledger.2023.278","DOIUrl":"https://doi.org/10.5195/ledger.2023.278","url":null,"abstract":"Solar photovoltaic (PV) technology offers a promising means to alleviate environmental and electricity costs challenges for cryptocurrency miners. To analyze this promise, this study investigated the feasibility of using electricity from individually optimized PV systems to power: 1) an individual Bitcoin miner, 2) a DIY intermodal shipping container holding 50 miners, and 3) a commercial mining farm container holding 408 miners. In a controlled lab environment, miners were monitored for electricity use. Then using these values, numerical simulations of both the PV system yield and sensitivity ranges based on the Bitcoin price, Bitcoin halving events, and miner hardware were investigated for informed financial planning. In addition, sensitivity for geographic locations in North America, utility electric rates and PV capital costs were analyzed. The profitability and return on investment (ROI) varied by location primarily because of the geographic distribution of solar flux and utility rates. The ROI for using PV with Bitcoin mining was found to be negative for Toronto and Montreal because of low-cost electricity, while it was 8% for Calgary. In the U.S. cities evaluated, the ROIs were substantial and ranged from 34% in New York, to 64% in Boulder, and up to 104% in Los Angeles. Although the study is based in North America regarding energy rates, climate, and energy laws, the analysis methodology is generalizable globally and grants the average cryptocurrency business the knowledge to make an informed decision on whether to pursue this venture from a financial and environmental perspective. This study contributes to the body of knowledge in cryptocurrency mining by providing an economic means of environmental preservation by powering cryptocurrency miners with renewable solar energy.","PeriodicalId":36240,"journal":{"name":"Ledger","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135891771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LedgerPub Date : 2023-02-20DOI: 10.5195/ledger.2022.296
Richard Ford Burley
{"title":"A Note from the Editors","authors":"Richard Ford Burley","doi":"10.5195/ledger.2022.296","DOIUrl":"https://doi.org/10.5195/ledger.2022.296","url":null,"abstract":"","PeriodicalId":36240,"journal":{"name":"Ledger","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43588088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LedgerPub Date : 2022-08-29DOI: 10.5195/ledger.2022.260
Takeshi Miyamae, Kanta Matsuura
{"title":"Coin Transfer Unlinkability Under the Counterparty Adversary Model","authors":"Takeshi Miyamae, Kanta Matsuura","doi":"10.5195/ledger.2022.260","DOIUrl":"https://doi.org/10.5195/ledger.2022.260","url":null,"abstract":"\u0000\u0000\u0000Unlinkability is a crucial property of cryptocurrencies that protects users from deanonymization attacks. However, currently, even anonymous cryptocurrencies do not necessarily attain unlinkability under specific conditions. For example, Mimblewimble, which is considered to attain coin unlinkability using its transaction kernel offset technique, is vulnerable under the assumption that privacy adversaries can send their coins to or receive coins from the challengers. This paper first illustrates the privacy issue in Mimblewimble that could allow two colluded adversaries to merge a person’s two independent chunks of personally identifiable information (PII) into a single PII. To analyze the privacy issue, we formulate unlinkability between two sets of objects and a privacy adversary model in cryptocurrencies called the counterparty adversary model. On these theoretical bases, we define an abstract model of blockchain-based cryptocurrency transaction protocols called the coin transfer system, and unlinkability over it called coin transfer unlinkability (CT-unlinkability). Furthermore, we introduce zero-knowledgeness for the coin transfer systems to propose a method to easily prove the CT-unlinkability of cryptocurrency transaction protocols. Finally, we prove that Zerocash is CT-unlinkable by using our proving method to demonstrate its effectiveness.\u0000\u0000\u0000","PeriodicalId":36240,"journal":{"name":"Ledger","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42172018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}