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Colored Coins
Colored Coins is an open-source protocol built on the Bitcoin 2.0 that allows users to represent and manipulate immutable digital resources on top of Bitcoin transactions. They are a class of methods for representing and maintaining real-world assets on the Bitcoin blockchain, which may be used to establish asset ownership. Colored coins are bitcoins with a mark on them that specifies what they may be used for. Colored coins are also considered the initial step toward NFTs built on top of the Bitcoin network. Although bitcoins are fungible, they can be marked to be distinguished from other bitcoins. These marked coins have specific features that correspond to physical assets like vehicles and stocks, and owners may use them to establish their ownership of physical assets. Colored coins aim to lower transaction costs and complexity so that an asset's owner may transfer ownership as quickly as a Bitcoin transaction. Colored coins are commonly referred to as metacoins because this ...
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Vitalik Buterin
Vitaly "Vitalik" Buterin (born 1994) is a Russian-Canadian computer programmer and founder of Ethereum. Buterin became involved with cryptocurrency early in its inception, co-founding '' Bitcoin Magazine'' in 2011. In 2014, Buterin deployed Ethereum on blockchain with Dimitry Buterin, Gavin Wood, Charles Hoskinson, Anthony Di Iorio and Joseph Lubin. Early life and education Buterin was born in Kolomna, Russia, in 1994. His father was a computer scientist. He lived in the area until the age of six when his parents emigrated to Canada in search of better employment opportunities. While in grade three of elementary school in Canada, Buterin was placed into a class for gifted children and was drawn to mathematics, programming, and economics. Buterin then attended The Abelard School, a private high school in Toronto. Buterin learned about Bitcoin, from his father, Dimitry Buterin at the age of 17. After high school, Buterin attended the University of Waterloo. There, he took ...
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Commodities
In economics, a commodity is an economic good, usually a resource, that has full or substantial fungibility: that is, the market treats instances of the good as equivalent or nearly so with no regard to who produced them. The price of a commodity good is typically determined as a function of its market as a whole: well-established physical commodities have actively traded spot and derivative markets. The wide availability of commodities typically leads to smaller profit margins and diminishes the importance of factors (such as brand name) other than price. Most commodities are raw materials, basic resources, agricultural, or mining products, such as iron ore, sugar, or grains like rice and wheat. Commodities can also be mass-produced unspecialized products such as chemicals and computer memory. Popular commodities include crude oil, corn, and gold. Other definitions of commodity include something useful or valued and an alternative term for an economic good or ser ...
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UTXO
In cryptocurrencies, an unspent transaction output (UTXO) represents some amount of digital currency which has been authorized by one account to be spent by another. UTXOs use public key cryptography to identify and transfer ownership between holders of public/private key pairs. UTXOs are formatted with the recipient's public key, thus restricting the ability to spend that UTXO to the account that can prove ownership of the associated private key. The UTXO can only be spent if it includes the digital signature associated with the public key attached the last time it was sent. Each UTXO represents a chain of ownership implemented as a chain of digital signatures going back to the origin of the coin. This is true whether the coin was created by mining, staking, or another minting procedure defined by the protocol. Bitcoin is an example of a cryptocurrency that uses the UTXO model. An extended version of the UTXO model (EUTXO) is used for the Cardano blockchain. UTXO model vs. a ...
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ERC-20
Ethereum is a decentralized, open-source blockchain with smart contract functionality. Ether ( Abbreviation: ETH; sign: Ξ) is the native cryptocurrency of the platform. Among cryptocurrencies, ether is second only to bitcoin in market capitalization. Ethereum was conceived in 2013 by programmer Vitalik Buterin. Additional founders of Ethereum included Gavin Wood, Charles Hoskinson, Anthony Di Iorio and Joseph Lubin. In 2014, development work began and was crowdfunded, and the network went live on 30 July 2015. Ethereum allows anyone to deploy permanent and immutable decentralized applications onto it, with which users can interact. Decentralized finance (DeFi) applications provide a broad array of financial services without the need for typical financial intermediaries like brokerages, exchanges, or banks, such as allowing cryptocurrency users to borrow against their holdings or lend them out for interest. Ethereum also allows users to create and exchange NFTs, which are ...
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Colu
Brainiac is a supervillain appearing in American comic books published by DC Comics. The character was created by Otto Binder and Al Plastino and first appeared in '' Action Comics'' #242 in July 1958. Brainiac is usually depicted as an extraterrestrial android or cyborg who serves as one of Superman's greatest enemies and a major adversary of the Justice League. He is known for shrinking and stealing Kandor, the capital city of Superman's home planet Krypton, and is even responsible for Krypton's destruction in some continuities. The character's name is a portmanteau of the words ''brain'' and ''maniac''. In 2009, Brainiac was ranked by IGN as 17th Greatest Comic Book Villain of All Time. He has been substantially adapted into various forms of media, having been voiced by Corey Burton in various television shows set within the DC animated universe, by John Noble in animated film '' Superman: Unbound'', and by Jeffrey Combs in the video game ''Injustice 2''. In live-actio ...
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Decentralized
Decentralization or decentralisation is the process by which the activities of an organization, particularly those regarding planning and decision making, are distributed or delegated away from a central, authoritative location or group. Concepts of decentralization have been applied to group dynamics and management science in private businesses and organizations, political science, law and public administration, economics, money and technology. History The word "''centralisation''" came into use in France in 1794 as the post-Revolution French Directory leadership created a new government structure. The word "''décentralisation''" came into usage in the 1820s. "Centralization" entered written English in the first third of the 1800s; mentions of decentralization also first appear during those years. In the mid-1800s Tocqueville would write that the French Revolution began with "a push towards decentralization... ut became,in the end, an extension of centralization."Vivien A. ...
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Cryptography
Cryptography, or cryptology (from grc, , translit=kryptós "hidden, secret"; and ''graphein'', "to write", or ''-logia'', "study", respectively), is the practice and study of techniques for secure communication in the presence of adversarial behavior. More generally, cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages. Modern cryptography exists at the intersection of the disciplines of mathematics, computer science, information security, electrical engineering, digital signal processing, physics, and others. Core concepts related to information security (data confidentiality, data integrity, authentication, and non-repudiation) are also central to cryptography. Practical applications of cryptography include electronic commerce, chip-based payment cards, digital currencies, computer passwords, and military communications. Cryptography prior to the modern age was effectively synony ...
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Bitcoin Miners
The bitcoin network is a peer-to-peer payment network that operates on a cryptographic protocol. Users send and receive bitcoins, the units of currency, by broadcasting digitally-signed messages to the network using bitcoin cryptocurrency wallet software. Transactions are recorded into a distributed, replicated, public database known as the blockchain, with consensus achieved by a proof-of-work system called ''mining''. Satoshi Nakamoto, the anonymous designer of the protocol, stated that design and coding of bitcoin began in 2007. The project was released in 2009 as open source software. The network requires minimal structure to share transactions. An ad hoc decentralized network of volunteers is sufficient. Messages are broadcast on a best-effort basis, and nodes can leave and rejoin the network at will. Upon reconnection, a node downloads and verifies new blocks from other nodes to complete its local copy of the blockchain. Transactions A bitcoin is defined b ...
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Bitcoinxt
Bitcoin forks are defined variantly as changes in the protocol of the bitcoin network or as the situations that occur "when two or more blocks have the same block height". A fork influences the validity of the rules. Forks are typically conducted in order to add new features to a blockchain, to reverse the effects of hacking or catastrophic bugs. Forks require consensus to be resolved or else a permanent split emerges. Forks of the client software The following are forks of the software client for the bitcoin network: ; Bitcoin XT: A fork initiated by Mike Hearn. The current reference implementation for bitcoin contains a computational bottleneck. The actual fork was preceded by Mike Hearn publishing a ''Bitcoin Improvement Proposal'' (BIP 64) on June 10, 2014, calling for the addition of "a small P2P protocol extension that performs UTXO lookups given a set of outpoints." On December 27, 2014 Hearn released version 0.10 of the forked client XT, with the BIP 64 changes. I ...
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Buterin
Vitaly "Vitalik" Buterin (born 1994) is a Russian-Canadian computer programmer and founder of Ethereum. Buterin became involved with cryptocurrency early in its inception, co-founding ''Bitcoin Magazine'' in 2011. In 2014, Buterin deployed Ethereum on blockchain with Dimitry Buterin, Gavin Wood, Charles Hoskinson, Anthony Di Iorio and Joseph Lubin. Early life and education Buterin was born in Kolomna, Russia, in 1994. His father was a computer scientist. He lived in the area until the age of six when his parents emigrated to Canada in search of better employment opportunities. While in grade three of elementary school in Canada, Buterin was placed into a class for gifted children and was drawn to mathematics, programming, and economics. Buterin then attended The Abelard School, a private high school in Toronto. Buterin learned about Bitcoin, from his father, Dimitry Buterin at the age of 17. After high school, Buterin attended the University of Waterloo. There, he took ad ...
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White Paper
A white paper is a report or guide that informs readers concisely about a complex issue and presents the issuing body's philosophy on the matter. It is meant to help readers understand an issue, solve a problem, or make a decision. A white paper is the first document researchers should read to better understand a core concept or idea. The term originated in the 1920s to mean a type of position paper or industry report published by some department of the UK government. Since the 1990s, this type of document has proliferated in business. Today, a business-to-business (B2B) white paper is closer to a marketing presentation, a form of content meant to persuade customers and partners and promote a certain product or viewpoint. That makes B2B white papers a type of grey literature. In government The term ''white paper'' originated with the British government and many point to the Churchill White Paper of 1922 as the earliest well-known example under this name. Gertrude Bell ...
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EToro
eToro is an Israeli social trading and multi-asset investment company that focuses on providing financial and copy trading services. Its headquarters are located in Central Israel, and the company has registered offices in Cyprus, the United Kingdom, the United States, and Australia. History eToro was founded as RetailFX in 2007 in Tel Aviv, by brothers Yoni Assia and Ronen Assia together with David Ring. In 2010, the firm released the eToro OpenBook social investment platform, along with its CopyTrader feature, that enables investors to copy the network's top traders automatically. eToro’s Social newsfeed and a Popular Investor program were later developed on top of this feature. Later that year, the firm released an Android app. Between 2007 and 2013, the company raised $31.5 million in four rounds of funding. In December 2014, it raised $27 million from Russian and Chinese investors. In December 2017, it joined CoinDash to develop Blockchain-based social trading. ...
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