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Learn About Bitcoin Bitcoin is changing the way people think about money. Use Bitcoin Bitcoin makes it easy to send real money quickly to anywhere in the world!

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Start Cloud Mining Join the most profitable mining pool in the world. Vote on Bitcoin Issues Bitcoinocracy is a free and decentralized way to voice your opinion. Use Bitcoin Tools Bitcoin. Take your first steps to becoming a full-fledged Bitcoiner today! Taking you from beginner to expert, one article at a time. What is Bitcoin Cash? K - Daily Transactions. Explore the world of Bitcoin. The Commission de Surveillance du Secteur Financier has issued a communication in February acknowledging the status of currency to the bitcoin and other cryptocurrencies.

As of [update] , virtual currencies such as bitcoin do not fall within the scope of the Act on Financial Supervision of the Netherlands. Bitcoin is treated as 'private money'. When bitcoin is exchanged for sterling or for foreign currencies, such as euro or dollar, no VAT will be due on the value of the bitcoins themselves.

However, in all instances, VAT will be due in the normal way from suppliers of any goods or services sold in exchange for bitcoin or other similar cryptocurrency. Profits and losses on cryptocurrencies are subject to capital gains tax.

In December , the governor of the Reserve Bank of Australia RBA indicated in an interview about bitcoin legality stating, "There would be nothing to stop people in this country deciding to transact in some other currency in a shop if they wanted to.

The Reserve Bank of New Zealand states: From Wikipedia, the free encyclopedia. For a broader coverage related to this topic, see Bitcoin. This section needs expansion. You can help by adding to it. Relevant discussion may be found on the talk page. Accessed 25 September Retrieved 25 February Court of Justice of the European Union.

Retrieved 6 December Retrieved 23 October Retrieved 5 March Market, economics and regulation" PDF. European Parliamentary Research Service. Bitcoin regulation or plans therefor in selected countries. Retrieved 18 February Retrieved 8 July Guidance for a risk-based approach.

Retrieved 6 March Retrieved 30 October South African Reserve Bank. Sars is coming for you". Retrieved 22 May Retrieved 11 June Sandra Appel A security Agreement for Bitcoin: Retrieved 5 September Financial Crimes Enforcement Network. Retrieved 1 June Retrieved 22 April Banco Central de Costa Rica. Trinidad and Tobago Guardian. Retrieved 23 February Banco Central do Brasil. Retrieved 17 November Superintendencia Financiera de Colombia.

Retrieved 20 October Banco Central del Ecuador. Retrieved 22 October International Finance Centre Development Agency. National Bank of the Kyrgyz Republic. Retrieved 13 February Retrieved 6 July Retrieved 21 August Retrieved 17 July Retrieved 17 June Turkish Banking Regulation and Supervision Agency. How close Bitcoin to be Legalized in Iran? Retrieved 16 December We're Not Giving Up Yet". Retrieved 19 December Retrieved 8 November Archived from the original on 9 February Retrieved 6 October Retrieved 10 January Retrieved 18 January Archived from the original on Bitcoin is not Currency in Japanese ".

Retrieved 28 April Retrieved 26 February Archived from the original on 21 September Retrieved 21 September Retrieved 9 July Retrieved 17 April The central bank does not regulate it but the public is advised not to speculate on it ". Retrieved 15 October Retrieved 5 February Retrieved 2 March Retrieved 11 January Retrieved 7 May Retrieved 27 December Retrieved 29 October Retrieved 1 November Retrieved 25 August Retrieved 19 March Retrieved 14 December Retrieved 8 August Bitcoin nie jest nielegalny".

Retrieved 18 December Retrieved 28 January Retrieved 31 July Retrieved 3 February Retrieved 24 March Swiss Financial Market Supervisory Authority. Retrieved 16 April Retrieved 28 November Archived from the original on 20 September Retrieved 20 September Make quick and easy purchases with Bitcoin". Retrieved 5 January Archived from the original on 17 December Retrieved 24 December Retrieved 15 March Retrieved 15 November The Central Bank of Iceland.

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Retrieved 19 October The Australian Financial Review. Retrieved 10 May History Economics Legal status. List of bitcoin companies List of bitcoin organizations List of people in blockchain technology. Lists of countries by laws and law enforcement rankings. Legality of euthanasia Homicide by decade Law enforcement killings Legality of suicide Legality of assisted suicide.

Censorship by country Book censorship by country Film censorship by country Internet censorship by country Cartographic censorship Political censorship Video gaming censorship by country. Corporate Corporate liability Competition Mergers and acquisitions Monopoly Legality of bitcoin by country or territory. List of international rankings List of top international rankings by country Lists by country. Retrieved from " https: Bitcoin Digital currencies Alternative currencies Financial cryptography Currency legislation Comparative law Cryptocurrencies Law-related lists Lists by country.

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This page was last edited on 22 May , at By using this site, you agree to the Terms of Use and Privacy Policy. The New York Times noted in both and that many corporations are using blockchain networks "with private blockchains, independent of the public system. Nikolai Hampton pointed out in Computerworld that "There is also no need for a '51 percent' attack on a private blockchain, as the private blockchain most likely already controls percent of all block creation resources.

If you could attack or damage the blockchain creation tools on a private corporate server, you could effectively control percent of their network and alter transactions however you wished. It's unlikely that any private blockchain will try to protect records using gigawatts of computing power—it's time consuming and expensive. This means that many in-house blockchain solutions will be nothing more than cumbersome databases.

Data interchange between participants in a blockchain is a technical challenge that could inhibit blockchain's adoption and use. This has not yet become an issue because thus far participants in a blockchain have agreed either tacitly or actively on metadata standards. Standardized metadata will be the best approach for permissioned blockchains such as payments and securities trading with high transaction volumes and a limited number of participants.

Such standards reduce the transaction overhead for the blockchain without imposing burdensome mapping and translation requirements on the participants. However, Robert Kugel of Ventana Research points out that general purpose commercial blockchains require a system of self-describing data to permit automated data interchange. According to Kugel, by enabling universal data interchange, self-describing data can greatly expand the number of participants in permissioned commercial blockchains without having to concentrate control of these blockchains to a limited number of behemoths.

Self-describing data also facilitates the integration of data between disparate blockchains. Blockchain technology can be integrated into multiple areas.

The primary use of blockchains today is as a distributed ledger for cryptocurrencies, most notably bitcoin. Blockchain technology has a large potential to transform business operating models in the long term. Blockchain distributed ledger technology is more a foundational technology —with the potential to create new foundations for global economic and social systems—than a disruptive technology , which typically "attack a traditional business model with a lower-cost solution and overtake incumbent firms quickly".

As of [update] , some observers remain skeptical. Steve Wilson, of Constellation Research, believes the technology has been hyped with unrealistic claims. This means specific blockchain applications may be a disruptive innovation, because substantially lower-cost solutions can be instantiated, which can disrupt existing business models. Blockchains alleviate the need for a trust service provider and are predicted to result in less capital being tied up in disputes.

Blockchains have the potential to reduce systemic risk and financial fraud. They automate processes that were previously time-consuming and done manually, such as the incorporation of businesses. As a distributed ledger, blockchain reduces the costs involved in verifying transactions, and by removing the need for trusted "third-parties" such as banks to complete transactions, the technology also lowers the cost of networking, therefore allowing several applications. Starting with a strong focus on financial applications, blockchain technology is extending to activities including decentralized applications and collaborative organizations that eliminate a middleman.

Frameworks and trials such as the one at the Sweden Land Registry aim to demonstrate the effectiveness of the blockchain at speeding land sale deals. The Government of India is fighting land fraud with the help of a blockchain. In October , one of the first international property transactions was completed successfully using a blockchain-based smart contract.

Each of the Big Four accounting firms is testing blockchain technologies in various formats. It is important to us that everybody gets on board and prepares themselves for the revolution set to take place in the business world through blockchains, [to] smart contracts and digital currencies.

Blockchain-based smart contracts are contracts that can be partially or fully executed or enforced without human interaction. The IMF believes smart contracts based on blockchain technology could reduce moral hazards and optimize the use of contracts in general. Some blockchain implementations could enable the coding of contracts that will execute when specified conditions are met.

A blockchain smart contract would be enabled by extensible programming instructions that define and execute an agreement. Companies have supposedly been suggesting blockchain-based currency solutions in the following two countries:. Some countries, especially Australia, are providing keynote participation in identifying the various technical issues associated with developing, governing and using blockchains:.

Don Tapscott conducted a two-year research project exploring how blockchain technology can securely move and store host "money, titles, deeds, music, art, scientific discoveries, intellectual property, and even votes". Banks are interested in this technology because it has potential to speed up back office settlement systems.

Banks such as UBS are opening new research labs dedicated to blockchain technology in order to explore how blockchain can be used in financial services to increase efficiency and reduce costs.

Russia has officially completed its first government-level blockchain implementation. The state-run bank Sberbank announced on 20 December that it is partnering with Russia's Federal Antimonopoly Service FAS to implement document transfer and storage via blockchain. R3 connects 42 banks to distributed ledgers built by Ethereum, Chain. A Swiss industry consortium, including Swisscom , the Zurich Cantonal Bank and the Swiss stock exchange, is prototyping over-the-counter asset trading on a blockchain-based Ethereum technology.

The credit and debits payments company MasterCard has added three blockchain-based APIs for programmers to use in developing both person-to-person P2P and business-to-business B2B payment systems.

CLS Group is using blockchain technology to expand the number of currency trade deals it can settle. Blockchain technology can be used to create a permanent, public, transparent ledger system for compiling data on sales, storing rights data by authenticating copyright registration , [] and tracking digital use and payments to content creators, such as wireless users [] or musicians.

Kodak announced plans in to launch a digital token system for photograph copyright recording. Another example where smart contracts are used is in the music industry.

Every time a dj mix is played, the smart contracts attached to the dj mix pays the artists almost instantly. An application has been suggested for securing the spectrum sharing for wireless networks. New distribution methods are available for the insurance industry such as peer-to-peer insurance , parametric insurance and microinsurance following the adoption of blockchain.

In theory, legacy disparate systems can be completely replaced by blockchains. Blockchains facilitate users could take ownership of game assets digital assets , an example of this is Cryptokitties. Microsoft Visual Studio is making the Ethereum Solidity language available to application developers. IBM offers a cloud blockchain service based on the open source Hyperledger Fabric project [] [].

Oracle has joined the Hyperledger consortium. In August , a research team at the Technical University of Munich published a research document about how blockchains may disrupt industries. They analyzed the venture funding that went into blockchain ventures. ABN Amro announced a project in real estate to facilitate the sharing and recording of real estate transactions, and a second project in partnership with the Port of Rotterdam to develop logistics tools.

On May 8, Facebook confirmed that it is opening a new blockchain group [] which will be headed by David Marcus who previously was in charge of Messenger. According to The Verge Facebook is planning to launch its own cryptocurrency for facilitating payments on the platform []. Currently, there are three types of blockchain networks - public blockchains, private blockchains and consortium blockchains. A public blockchain has absolutely no access restrictions. Anyone with an internet connection can send transactions [ disambiguation needed ] to it as well as become a validator i.

A private blockchain is permissioned. Participant and validator access is restricted. This type of blockchains can be considered a middle-ground for companies that are interested in the blockchain technology in general but are not comfortable with a level of control offered by public networks.

Typically, they seek to incorporate blockchain into their accounting and record-keeping procedures without sacrificing autonomy and running the risk of exposing sensitive data to the public internet. A consortium blockchain is often said to be semi-decentralized. It, too, is permissioned but instead of a single organization controlling it, a number of companies might each operate a node on such a network. The adoption rates, as studied by Catalini and Tucker , revealed that when people who typically adopt technologies early are given delayed access, they tend to reject the technology.

In September , the first peer-reviewed academic journal dedicated to cryptocurrency and blockchain technology research, Ledger , was announced. The inaugural issue was published in December The journal encourages authors to digitally sign a file hash of submitted papers, which will then be timestamped into the bitcoin blockchain.

Authors are also asked to include a personal bitcoin address in the first page of their papers. A World Economic Forum report from September predicted that by ten percent of global GDP would be stored on blockchains technology.

Lakhani said the blockchain is not a disruptive technology that undercuts the cost of an existing business model, but is a foundational technology that "has the potential to create new foundations for our economic and social systems". They further predicted that, while foundational innovations can have enormous impact, "It will take decades for blockchain to seep into our economic and social infrastructure.

Media related to Blockchain at Wikimedia Commons. From Wikipedia, the free encyclopedia. For other uses, see Block chain disambiguation. This section is transcluded from Fork blockchain.

If people can prove they own it, they can borrow against it. The neutrality of this section is disputed. Relevant discussion may be found on the talk page. Please do not remove this message until conditions to do so are met. March Learn how and when to remove this template message. Information technology portal Cryptography portal Economics portal Computer science portal. The great chain of being sure about things".

Archived from the original on 3 July Retrieved 18 June The technology behind bitcoin lets people who do not know or trust each other build a dependable ledger. This has implications far beyond the crypto currency. Archived from the original on 21 May Retrieved 23 May The New York Times.

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