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Robert A. Küfner
Robert A. Küfner (15 May 1988) is a German entrepreneur, author and investor. He is mentioned as a pioneer in the field of Bitcoin and blockchain technology. Early life Küfner was born in Wuppertal and raised in Remscheid. He studied Business Administration in Cologne for three terms. Career In 2010, Küfner read an article in ''Vice (magazine), ''Vice'''' about Bitcoin and saw the potential of the new technology. Fascinated by the possibilities of the blockchain he started mining. He installed a power line in his basement, bought high-performance servers and offered computing power for the mining process, earning many Bitcoins. In 2014, he invested in the Ethereum cryptocurrency. Küfner changed his focus to the technology behind Bitcoin, Distributed ledger, Distributed Ledger Technology. He met Till Wendler and Florian Reike at a gathering of Bitcoin enthusiasts in Berlin and together they founded nakamo.to in 2017, company for researching and developing DLT. The compan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wuppertal
Wuppertal (; ) is a city in North Rhine-Westphalia, in western Germany, with a population of 355,000. Wuppertal is the seventh-largest city in North Rhine-Westphalia and List of cities in Germany by population, 17th-largest in Germany. It was founded in 1929 by the merger of Elberfeld, Barmen, Ronsdorf, Cronenberg, Wuppertal, Cronenberg and Vohwinkel Schwebebahn, Vohwinkel, and was initially called "Barmen-Elberfeld" before adopting its present name in 1930. It is the capital and largest city of the Bergisches Land. The city straddles the densely populated banks of the River Wupper, a tributary of the Rhine. Wuppertal is located between the Ruhr (Essen) to the north, Düsseldorf to the west, and Cologne to the southwest, and over time has grown together with Solingen, Remscheid and Hagen. The stretching of the city in a long band along the narrow Wupper Valley leads to a spatial impression of Wuppertal being larger than it actually is. The city is known for its steep slope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Directed Acyclic Graph
In mathematics, particularly graph theory, and computer science, a directed acyclic graph (DAG) is a directed graph with no directed cycles. That is, it consists of vertices and edges (also called ''arcs''), with each edge directed from one vertex to another, such that following those directions will never form a closed loop. A directed graph is a DAG if and only if it can be topologically ordered, by arranging the vertices as a linear ordering that is consistent with all edge directions. DAGs have numerous scientific and computational applications, ranging from biology (evolution, family trees, epidemiology) to information science (citation networks) to computation (scheduling). Directed acyclic graphs are also called acyclic directed graphs or acyclic digraphs. Definitions A graph is formed by vertices and by edges connecting pairs of vertices, where the vertices can be any kind of object that is connected in pairs by edges. In the case of a directed graph, each edg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Purpose: Because living persons may suffer personal harm from inappropriate information, we should watch their articles carefully. By adding an article to this category, it marks them with a notice about sources whenever someone tries to edit them, to remind them of WP:BLP (biographies of living persons) policy that these articles must maintain a neutral point of view, maintain factual accuracy, and be properly sourced. Recent changes to these articles are listed on Special:RecentChangesLinked/Living people. Organization: This category should not be sub-categorized. Entries are generally sorted by family name In many societies, a surname, family name, or last name is the mostly hereditary portion of one's personal name that indicates one's family. It is typically combined with a given name to form the full name of a person, although several give .... Maintenance: Individuals of advanced age (over 90), for whom there has been no new documentation in the last ten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1988 Births
1988 was a crucial year in the early history of the Internet—it was the year of the first well-known computer virus, the 1988 Internet worm. The first permanent intercontinental Internet link was made between the United States (National Science Foundation Network) and Europe (Nordunet) as well as the first Internet-based chat protocol, Internet Relay Chat. The concept of the World Wide Web was first discussed at CERN in 1988. The Soviet Union began its major deconstructing towards a mixed economy at the beginning of 1988 and began its gradual dissolution. The Iron Curtain began to disintegrate in 1988 as Hungary began allowing freer travel to the Western world. The first extrasolar planet, Gamma Cephei Ab (confirmed in 2003), was detected this year and the World Health Organization began its mission to eradicate polio. Global warming also began to emerge as a more significant concern, with climate scientist James Hansen testifying before the U.S. Senate on the is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amazon
Amazon most often refers to: * Amazon River, in South America * Amazon rainforest, a rainforest covering most of the Amazon basin * Amazon (company), an American multinational technology company * Amazons, a tribe of female warriors in Greek mythology Amazon or Amazone may also refer to: Arts and entertainment Fictional characters * Amazon (Amalgam Comics) * Amazon, an alias of the Marvel supervillain Man-Killer * Amazons (DC Comics), a group of superhuman characters * The Amazon, a '' Diablo II'' character * The Amazon, a '' Pro Wrestling'' character * Amazon (''Dragon's Crown''), a character from the ''Dragon's Crown'' game * '' Kamen Rider Amazon'', title character in the fourth installment of the ''Kamen Rider'' series Film and television * ''The Amazons'' (1917 film), an American silent tragedy film * ''The Amazon'' (film), a 1921 German silent film * '' War Goddess'', also known as ''The Amazons'', a 1973 Italian adventure fantasy drama * ''Amazons'' (1984 f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Der Spiegel
(, , stylized in all caps) is a German weekly news magazine published in Hamburg. With a weekly circulation of about 724,000 copies in 2022, it is one of the largest such publications in Europe. It was founded in 1947 by John Seymour Chaloner, a British army officer, and Rudolf Augstein, a former ''Wehrmacht'' radio operator who was recognized in 2000 by the International Press Institute as one of the fifty World Press Freedom Heroes. is known in German-speaking countries mostly for its investigative journalism. It has played a key role in uncovering many political scandals such as the ''Spiegel'' affair in 1962 and the Flick affair in the 1980s. The news website by the same name was launched in 1994 under the name '' Spiegel Online'' with an independent editorial staff. Today, the content is created by a shared editorial team and the website uses the same media brand as the printed magazine. History The first edition of was published in Hanover on Saturday, 4 Januar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arte
Arte (, , ; ' ('), sometimes stylised in lowercase or uppercase in its logo) is a European Union, European public service Television channel, channel dedicated to culture. It is made up of three separate companies: the Strasbourg-based European Economic Interest Grouping (EEIG) ARTE, plus two member companies acting as editorial and programme production centres, ARTE France in Paris (formerly known as La Sept) and ARTE Deutschland in Baden-Baden (a subsidiary of the two main public German TV networks ARD (broadcaster), ARD and ZDF). As an international joint venture (an EEIG), its programmes focus on audiences in both countries. Because of this, the channel has two audio tracks and two subtitle tracks, one each in French language, French and German language, German. 80% of Arte's programming is provided by its French and German subsidiaries, each making half of the programmes. The remainder is provided by the European subsidiary and the channel's European partners. Selected p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manager Magazin
''Manager Magazin'' (stylized as ''manager magazin'') is a German monthly business magazine focusing on business, finance and management based in Hamburg. History and profile ''Manager Magazin'' was first published on 1 November 1971. It is part of the Spiegel Group which also owns '' Der Spiegel'' among others. The magazine is based in Hamburg and is published monthly by the Manager Magazin Verlagsgesellschaft. Since 1986, Gruner + Jahr has a 24.9 percent share in the publisher of the magazine. The other owner of its publishing house is the Spiegel Group. As of 2013, Steffen Klusmann was the editor-in-chief of the monthly. ''Manager Magazin'' has a liberal stance. The magazine targets professional decision makers and managers in Germany. It covers business news, related data and background information concerning all economic areas. The online edition of the monthly was launched in 1998. The magazine has a lifestyle supplement, ''Splendid'', which covers articles on fash ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satoshi Nakamoto
Satoshi Nakamoto ( – 26 April 2011) is the name used by the presumed pseudonymous person or persons who developed bitcoin, authored the bitcoin white paper, and created and deployed bitcoin's original reference implementation. As part of the implementation, Nakamoto also devised the first blockchain database. Nakamoto was active in the development of bitcoin until December 2010. There has been widespread speculation about Nakamoto's true identity, with various people posited as the person or persons behind the name. Though Nakamoto's name is Japanese, and inscribed as a man living in Japan, most of the speculation has involved software and cryptography experts in the United States or Europe. Development of bitcoin Nakamoto said that the work of writing bitcoin's code began in the second quarter of 2007. On 18 August 2008, he or a colleague registered the domain name bitcoin.org, and created a web site at that address. On 31 October, Nakamoto published a white paper on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germany
Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total population of over 84 million in an area of , making it the most populous member state of the European Union. It borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The Capital of Germany, nation's capital and List of cities in Germany by population, most populous city is Berlin and its main financial centre is Frankfurt; the largest urban area is the Ruhr. Settlement in the territory of modern Germany began in the Lower Paleolithic, with various tribes inhabiting it from the Neolithic onward, chiefly the Celts. Various Germanic peoples, Germanic tribes have inhabited the northern parts of modern Germany since classical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distributed Ledger
A distributed ledger (also called a shared ledger or distributed ledger technology or DLT) is a system whereby replicated, shared, and synchronized digital data is geographically spread (distributed) across many sites, countries, or institutions. Its fundamental rationale is Argumentum ad populum whereby its veracity relies on a popular or majority of nodes to force the system to agree. In contrast to a centralized database, a distributed ledger does not require a central administrator, and consequently does not have a Single point of failure, single (central) point-of-failure. In general, a distributed ledger requires a peer-to-peer, peer-to-peer (P2P) computer network and Consensus (computer science), consensus algorithms so that the ledger is reliably replicated across distributed computer nodes (servers, clients, etc.). The most common form of distributed ledger technology is the blockchain (commonly associated with the bitcoin cryptocurrency), which can either be on a public or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethereum
Ethereum is a decentralized blockchain with smart contract functionality. Ether (abbreviation: ETH) is the native cryptocurrency of the platform. Among cryptocurrencies, ether is second only to bitcoin in market capitalization. It is open-source software. Ethereum was conceived in 2013 by programmer Vitalik Buterin. Other founders include 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 decentralized applications onto it, with which users can interact. Decentralized finance (DeFi) applications provide financial instruments that do not directly rely on financial intermediaries like brokerages, exchanges, or banks. This facilitates borrowing against cryptocurrency holdings or lending them out for interest. Ethereum also allows users to create and exchange non-fungible tokens (NFTs), which are tokens that can be tied to un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
