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Dai (cryptocurrency)
Dai (or DAI, formerly Sai or SAI) is a stablecoin on the Ethereum blockchain whose value is kept as close to one United States dollar (USD) as possible through a system of smart contracts and the decentralized participants those contracts incentivize to perform maintenance and governance functions. Dai is maintained and regulated by MakerDAO, a decentralized autonomous organization (DAO) composed of the owners of its governance token, MKR, who may propose and vote on changes to certain parameters in its smart contracts in order to ensure the stability of Dai. Together, Dai and MakerDAO are considered the first example of decentralized finance to receive significant adoption. Overview Dai is created from an overcollateralized loan and repayment process facilitated by MakerDAO's smart contracts in the form of a decentralized application. Users who deposit Ether (or other cryptocurrencies accepted as collateral) are able to borrow against the value of their deposits and receiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solidity
Solidity is an object-oriented programming language for implementing smart contracts on various blockchain platforms, most notably, Ethereum. It was developed by Christian Reitwiessner, Alex Beregszaszi, and several former Ethereum core contributors. Programs in Solidity run on Ethereum Virtual Machine. History Solidity was proposed in August 2014 by Gavin Wood; the language was later developed by the Ethereum project's Solidity team, led by Christian Reitwiessner. Solidity is the primary language on Ethereum as well as on other private blockchains, such as the enterprise-oriented Hyperledger Fabric blockchain. SWIFT deployed a proof of concept using Solidity running on Hyperledger Fabric. Description Solidity is a statically typed programming language designed for developing smart contracts that run on the Ethereum Virtual Machine (EVM). Solidity uses ECMAScript-like syntax which makes it familiar for existing web developers; however unlike ECMAScript it has static typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circulation (currency)
In monetary economics, the currency in circulation in a country is the value of currency or cash (banknotes and coins) that has ever been issued by the country’s monetary authority less the amount that has been removed. More broadly, money in circulation is the total money supply of a country, which can be defined in various ways, but always includes currency and also some types of bank deposits, such as deposits at call. The published amount of currency in circulation tends to be overstated by an unknown amount because it does not take into account money that has been destroyed, or held by individuals as a form of security (the proverbial “money under the mattress”), or by coin collectors, domestic or foreign, or which is held in reserve within the banking system, including currency held by foreign central banks as a foreign exchange reserve asset. Domestic demand for currency The currency in circulation in a country is based on the need or demand for cash in the communit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decentralized Finance
Decentralized finance (often stylized as DeFi) offers financial instruments without relying on intermediaries such as brokerages, exchanges, or banks by using smart contracts on a blockchain. DeFi platforms allow people to lend or borrow funds from others, speculate on price movements on assets using derivatives, trade cryptocurrencies, insure against risks, and earn interest in savings-like accounts. DeFi uses a layered architecture and highly composable building blocks. Some applications promote high interest rates but are subject to high risk. History Decentralized exchanges (abbreviated DEXs) are alternative payment ecosystems with new protocols for financial transactions that emerged within the framework of decentralized finance, which is part of blockchain technology and FinTech. CEXs, DEXs and DEX aggregators are all built on the multi-layered DeFi architecture or components, where each layer serves a well-defined purpose. (See Figure: ''Multi-layered Architecture o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stablecoin
Stablecoins are cryptocurrencies where the price is supposed to be pegged to a reference asset, which is either fiat money, exchange-traded commodities (such as precious metals or industrial metals), or another cryptocurrency. In theory, the peg would make stablecoins "stable" and not subject to changes in value; however, in practice, stablecoins have been proven time and time again to lack stability, and many stablecoins have plummeted in value as the ponzi scheme they are tied to crashes. Background Stablecoins have a number of purported purposes. They can theoretically be used for payments, and are in theory more likely to retain their value than cryptocurrencies such as Bitcoin and altcoins, which are highly volatile. Of course, in practice, many stablecoins have also failed to retain their value, plummeting to zero along other altcoins. Stablecoins are typically non-interest bearing, and therefore do not provide any benefits to the holder. Reserve-backed stablecoins Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptocurrency
A cryptocurrency, crypto-currency, or crypto is a digital currency designed to work as a medium of exchange through a computer network that is not reliant on any central authority, such as a government or bank, to uphold or maintain it. It is a decentralized system for verifying that the parties to a transaction have the money they claim to have, eliminating the need for traditional intermediaries, such as banks, when funds are being transferred between two entities. Individual coin ownership records are stored in a digital ledger, which is a computerized database using strong cryptography to secure transaction records, control the creation of additional coins, and verify the transfer of coin ownership. Despite their name, cryptocurrencies are not considered to be currencies in the traditional sense, and while varying treatments have been applied to them, including classification as commodities, securities, and currencies, cryptocurrencies are generally viewed as a distin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deleveraging
At the micro-economic level, deleveraging refers to the reduction of the leverage ratio, or the percentage of debt in the balance sheet of a single economic entity, such as a household or a firm. It is the opposite of leveraging, which is the practice of borrowing money to acquire assets and multiply gains and losses. At the macro-economic level, deleveraging of an economy refers to the simultaneous reduction of debt levels in multiple sectors, including private sectors and the government sector. It is usually measured as a decline of the total debt to GDP ratio in the national accounts. The deleveraging of an economy following a financial crisis has significant macro-economic consequences and is often associated with severe recessions. In microeconomics While leverage allows a borrower to acquire assets and multiply gains in good times, it also leads to multiple losses in bad times. During a market downturn when the value of assets and income plummets, a highly leveraged b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Pandemic
The COVID-19 pandemic, also known as the coronavirus pandemic, is an ongoing global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identified in an outbreak in the Chinese city of Wuhan in December 2019. Attempts to contain it there failed, allowing the virus to spread to other areas of Asia and later worldwide. The World Health Organization (WHO) declared the outbreak a public health emergency of international concern on 30 January 2020, and a pandemic on 11 March 2020. As of , the pandemic had caused more than cases and confirmed deaths, making it one of the deadliest in history. COVID-19 symptoms range from undetectable to deadly, but most commonly include fever, dry cough, and fatigue. Severe illness is more likely in elderly patients and those with certain underlying medical conditions. COVID-19 transmits when people breathe in air contaminated by droplets ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bootstrapping
In general, bootstrapping usually refers to a self-starting process that is supposed to continue or grow without external input. Etymology Tall boots may have a tab, loop or handle at the top known as a bootstrap, allowing one to use fingers or a boot hook tool to help pulling the boots on. The saying "to " was already in use during the 19th century as an example of an impossible task. The idiom dates at least to 1834, when it appeared in the ''Workingman's Advocate'': "It is conjectured that Mr. Murphee will now be enabled to hand himself over the Cumberland river or a barn yard fence by the straps of his boots."Jan FreemanBootstraps and Baron Munchausen ''Boston.com'', January 27, 2009 In 1860 it appeared in a comment on philosophy of mind: "The attempt of the mind to analyze itself san effort analogous to one who would lift himself by his own bootstraps." Bootstrap as a metaphor, meaning to better oneself by one's own unaided efforts, was in use in 1922. This metaphor s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copenhagen
Copenhagen ( or .; da, København ) is the capital and most populous city of Denmark, with a proper population of around 815.000 in the last quarter of 2022; and some 1.370,000 in the urban area; and the wider Copenhagen metropolitan area has 2,057,142 people. Copenhagen is on the islands of Zealand and Amager, separated from Malmö, Sweden, by the Øresund strait. The Øresund Bridge connects the two cities by rail and road. Originally a Viking fishing village established in the 10th century in the vicinity of what is now Gammel Strand, Copenhagen became the capital of Denmark in the early 15th century. Beginning in the 17th century, it consolidated its position as a regional centre of power with its institutions, defences, and armed forces. During the Renaissance the city served as the de facto capital of the Kalmar Union, being the seat of monarchy, governing the majority of the present day Nordic region in a personal union with Sweden and Norway ruled by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andreessen Horowitz
Andreessen Horowitz (also called a16z, legal name AH Capital Management, LLC) is a private American venture capital firm, founded in 2009 by Marc Andreessen and Ben Horowitz. The company is headquartered in Menlo Park, California. Andreessen Horowitz invests in both early-stage start-ups and established growth companies. Its investments span the mobile, cryptocurrency, gaming, social, e-commerce, education and enterprise IT (including cloud computing, security, and software as a service) industries. Founding and partnering Between 2006 and 2010, Marc Andreessen and Ben Horowitz actively invested in technology companies. Separately, and together, they invested $4 million in 45 start-ups including Twitter. During this time, the two became known as " super angel" investors. On July 6, 2009, Andreessen and Horowitz launched their venture capital fund with an initial capitalization of $300 million. In November 2010, at a time when the field of venture capitalism was contracting, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smart Contracts
A smart contract is a computer program or a transaction protocol that is intended to automatically execute, control or document events and actions according to the terms of a contract or an agreement. The objectives of smart contracts are the reduction of need for trusted intermediators, arbitration costs, and fraud losses, as well as the reduction of malicious and accidental exceptions. Smart contracts are commonly associated with cryptocurrencies, and the smart contracts introduced by Ethereum are generally considered a fundamental building block for decentralized finance (DeFi) and NFT applications. Vending machines are mentioned as the oldest piece of technology equivalent to smart contract implementation. The original Ethereum white paper by Vitalik Buterin in 2014 describes the Bitcoin protocol as a weak version of the smart contract concept as originally defined by Nick Szabo, and proposed a stronger version based on the Solidity language, which is Turing comple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
