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Adding new content to index.md (#29673)

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* Adding new content to index.md

Added mention of blockchain technologies in first paragraph.
Added link to coinmarketcap, and changed sentence about cryptocurrencies fractions, which was unclear IMO.
Retouched last sentence including mention to decentralized exchanges.

* Translation of proposal for index.md

In case pull-request #29673 is accepted, this is its Spanish translation
Pull-request URL: https://github.com/freeCodeCamp/freeCodeCamp/pull/29673
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edu san
2018-12-08 18:51:09 +01:00
committed by Christopher McCormack
parent 66331b5385
commit aee74f1a63
2 changed files with 16 additions and 9 deletions
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guide/english/blockchain/cryptocurrency/index.md
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@ -7,7 +7,7 @@ title: Cryptocurrency
> >
> – Satoshi Nakamoto, 09 January 2009, announcing Bitcoin on SourceForge. > – Satoshi Nakamoto, 09 January 2009, announcing Bitcoin on SourceForge.
Cryptocurrency is a subset of digital currency, which acts as a medium of exchange amongst two parties. It is known as crypto-currency because of the utilization of cryptography to strictly assure the security of transactions taking place on the network. There are various cryptocurrencies including Litecoin, Dash, Ethereum, Ripple, and the currently most popular currency - Bitcoin. Cryptocurrency is a subset of digital currency, which acts as a medium of exchange amongst two parties. It is known as crypto-currency because of the utilization of cryptography to strictly assure the security of transactions taking place on the network. There are various cryptocurrencies including Litecoin, Dash, Ethereum, Ripple, and the currently most popular currency - Bitcoin. A more complete list, with more than 2000, can be found on [CoinMarketCap](https://coinmarketcap.com/).
The original purpose of cryptocurrency was to remove the intervention of an intermediary (middleman) or third-parties in order to make transactions swift and secure, with anonymity maintained for all users operating through their respective systems (called 'nodes') on a network. The original purpose of cryptocurrency was to remove the intervention of an intermediary (middleman) or third-parties in order to make transactions swift and secure, with anonymity maintained for all users operating through their respective systems (called 'nodes') on a network.
@ -34,7 +34,10 @@ Every cryptocurrency has three layers:
Many cryptocurrencies such as Bitcoin can be earned by validating transactions on the network. This process of validation is called "proof of work" and consists of mathematically guessing a random numbers (usually less than a certain determined value or "difficulty") to attempt to match the blockchain's irreversible cryptographic hash function. As more transactions are validated (and rewards for validation are collected) over time, the difficulty of finding the correct hash increases. An increase in the popularity of cryptocurrency mining over the past few years has outpaced the development of the average computational power of a household computer, so in order to mine effectively, one requires a computer (or computers) with especially powerful graphics cards (such as the Nivida GTX 1080) or specialized cryptocurrency mining equipment (such as the Fast-Hash One or CoinTerra TerraMiner IV). It should also be noted that, because of drawbacks of proof-of-work validation (such as energy inefficiency), some cryptocurrencies are exploring alternative algorithms such as "proof of burn". Many cryptocurrencies such as Bitcoin can be earned by validating transactions on the network. This process of validation is called "proof of work" and consists of mathematically guessing a random numbers (usually less than a certain determined value or "difficulty") to attempt to match the blockchain's irreversible cryptographic hash function. As more transactions are validated (and rewards for validation are collected) over time, the difficulty of finding the correct hash increases. An increase in the popularity of cryptocurrency mining over the past few years has outpaced the development of the average computational power of a household computer, so in order to mine effectively, one requires a computer (or computers) with especially powerful graphics cards (such as the Nivida GTX 1080) or specialized cryptocurrency mining equipment (such as the Fast-Hash One or CoinTerra TerraMiner IV). It should also be noted that, because of drawbacks of proof-of-work validation (such as energy inefficiency), some cryptocurrencies are exploring alternative algorithms such as "proof of burn".
Investment in cryptocurrencies is highly speculative. With much volitility in the market due to the blockchain technologies still being in their infancy and compounded with a glut of inexperienced invstors the prices of the various currencies often change rapidly. Investors can trade fiat and crypto currencies on exchanges such as Binance, Bitrex, or Coinbase. The latest market peek was in January of 2018 with Bitcoin reaching above $20,000 USD on some exchanges. As with traditional currencies, it is possible to invest in cryptocurrencies. This can be done through centralized exchanges, like Binance, Bitrex, or Coinbase; or decentralized ones like IDEX or EtherDelta. Cryptocurrency trading started to become noticeable around 2013, and the total market capitalization has been on the rise since then, peaking in January of 2018.
Investment in cryptocurrencies is highly speculative. With much volatility in the market due to the blockchain technologies still being in their infancy and, compounded with a glut of inexperienced investors, the prices of the various currencies often change rapidly.
## Create your own cryptocurrency ## Create your own cryptocurrency

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guide/spanish/blockchain/cryptocurrency/index.md
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@ -2,21 +2,25 @@
title: Cryptocurrency title: Cryptocurrency
localeTitle: Criptomoneda localeTitle: Criptomoneda
--- ---
## Criptomoneda ## Criptomoneda
> Anunciamos la primera versión de Bitcoin, un nuevo sistema de efectivo electrónico que utiliza una red de igual a igual para evitar el doble gasto. Es completamente descentralizado sin servidor o autoridad central. > Anunciamos la primera versión de Bitcoin, un nuevo sistema de efectivo electrónico que utiliza una red de igual a igual para evitar el doble gasto. Es completamente descentralizado sin servidor o autoridad central.
> >
> \- Satoshi Nakamoto, 09 de enero de 2009, anunciando Bitcoin en SourceForge. > \- Satoshi Nakamoto, 09 de enero de 2009, anunciando Bitcoin en SourceForge.
La criptomoneda es un subconjunto de la moneda digital, que actúa como un medio de intercambio entre dos partes. Se le conoce como cripto-moneda debido a la utilización de la criptografía para asegurar sus transacciones. Existen varias criptomonedas que incluyen LiteCoin, Dash, Ethereum, Ripple y la más popular actualmente, Bitcoin. Es la forma perfecta de realizar transacciones sin confianza, ya que no involucra a ningún tercero. La criptomoneda es un subconjunto de la moneda digital, que actúa como un medio de intercambio entre dos partes. Se le conoce como cripto-moneda debido a la utilización de la criptografía para asegurar sus transacciones. Las criptomonedas mantienen el registro de transacciones en un libro distribuido, haciendo uso de la tecnología blockchain o tecnologías similares (como tangle). Las criptomonedas ofrecen la forma perfecta de realizar transacciones sin confianza, ya que no involucra a ningún tercero - en particular no es necesario un banco intermediador.
A diferencia de la moneda normal, la criptomoneda se puede dividir en fracciones. Por ejemplo, las transacciones pueden ascender a 0,00007 Btc o incluso menos. Algunos ejemplos de criptomonedas son Bitcoin, LiteCoin, Dash, Ethereum y Ripple. Una lista más completa, que incluye más de 2000, se puede consultar en https://coinmarketcap.com/. Cada criptomoneda ofrece al usuario una serie de características diferentes. Actualmente Bitcoin es la más popular. En general es posible las criptomonedas se pueden cambiar como fracciones. Por ejemplo un bitcoin es divisible en 10**8 partes, lo que significa que la unidad más pequeña, llamada satoshi equivale a 0.00000001 BTC.
Si desea obtener bitcoins a través de la minería, puede hacerlo resolviendo problemas matemáticos de prueba de trabajo que validan las transacciones. Blockchain usa el concepto de función criptográfica irreversible de hash que consiste en adivinar un número aleatorio (generalmente menor que un cierto valor) para resolver el problema de la validación de la transacción. Necesitará máquinas con alta capacidad de procesamiento para poder resolver estos problemas (por ejemplo, Fast-Hash One o CoinTerra TerraMiner IV). Si desea obtener bitcoins a través de la minería, puede hacerlo resolviendo problemas matemáticos de prueba de trabajo que validan las transacciones. Blockchain usa el concepto de función criptográfica irreversible de hash que consiste en adivinar un número aleatorio (generalmente menor que un cierto valor) para resolver el problema de la validación de la transacción. Necesitará máquinas con alta capacidad de procesamiento para poder resolver estos problemas (por ejemplo, Fast-Hash One o CoinTerra TerraMiner IV). Los ordenadores que tengan instalada una tarjeta gráfica de alto rendimiento (tal como la Nvidia GTX 1080) también pueden resolver estos hashes de manera eficiente.
#### Más información: Al igual que ocurre con las divisas tradicionales, es posible invertir en criptomoneda. Se puede hacer a través de mercados centralizados como Binance, Bitrex o Coinbase; o mercados descentralizados como IDEX o EtherDelta. El negocio de intercambio de criptomonedas empezó a ser apreciable en torno al año 2013, y la capitalización total de mercado ha evolucionado al alza desde entonces, alcanzando su pico histórico en enero de 2018.
[Criptomoneda](https://en.wikipedia.org/wiki/Cryptocurrency) ### Contexto histórico del origen de las criptomonedas:
[Guía definitiva de criptomoneda](https://blockgeeks.com/guides/what-is-cryptocurrency) - [Blockchain History](https://www.activism.net/cypherpunk/manifesto.html)
[Bitcoin](https://en.wikipedia.org/wiki/Bitcoin) ### Más información:
- [Criptomoneda](https://en.wikipedia.org/wiki/Cryptocurrency)
- [Guía definitiva de criptomoneda](https://blockgeeks.com/guides/what-is-cryptocurrency)
- [Bitcoin](https://en.wikipedia.org/wiki/Bitcoin)