Monthly Archives: January 2020

En el mundo del software de revelado fotográfico pocos nombres son tan conocidos y usados como la oferta comercial de Adobe Lightroom, o quizás de alternativas también de pago como Capture One.Sin embargo, por años una herramienta open source de excelente calidad ha estado ahí a nuestra disposición: Darktable es no solo una opción gratuita y de código abierto, sino una que también puedes usar en Linux sin hacer malabares, y que con su más reciente lanzamiento, Darktable 3.0 se ha hecho mejor que nunca.Nuestros compañeros de Xataka Foto ya habían mencionado lo prometedora que lucía esta versión, un Darktable mejorado cuyo motor de revelado destaca incluso por encima del de alternativas de pago. Si quieres sacarle toda la información posible a un RAW, quizás quieras echarle un vistazo.

Source: Darktable, la alternativa open source a Lightroom que sí puedes usar en Linux, recibe una enorme actualización y lavado de cara

This paper develops a model for understanding liquidity via the pricing of limit orders. Limitorders can be well deÖned and priced with the tools of option pricing, allowing the complextradeo§ between transaction size and speed to be reduced to a single price. The option-basedframework allows the properties of liquidity to be characterized as functions of the fundamentalvalue and the order áow processes. In the special case when immediate execution is desired,the option strike price at which immediate exercise is optimal determines the e§ective bid/askprice. A model with full-information, but imperfect market making, is able to describe many ofthe known properties of transaction costs.

Source: 07-017.pdf

Carylyne Chan, chief strategy officer at CoinMarketCap, and Gerald Chee, head of research, discuss the history of CoinMarketCap, why the founder Brandon Chez initially focused on circulating supply to calculate market cap, how the ICO craze has changed the way CoinMarketCap defines circulating supply and how the kimchee premium on the Bitcoin price in Korea at the end of 2017 is influencing the future direction of the website. We cover why CoinMarketCap is branching out into other areas such as metrics, blockchain explorers, hosting conferences and more, how the site has made money historically, the demographics, geographical distribution and behaviors of users on the site, and how CoinMarketCap’s web traffic is 90% correlated to the Bitcoin price.We talk about the fake volume problem, how CoinMarketCap decided to address it with a new liquidity metric, the new Data Accountability and Transparency Alliance they formed, and why they are working with some of the exchanges identified by Bitwise as being the most egregious in faking volumes, and how those exchanges fare when it comes to CMC’s new liquidity metric. We also cover some of the other ways companies have tried to address the fake volume issue, how CoinMarketCap tries to identify the “true price” for any cryptocurrency (and why USDT makes this hard), and what the circulating supply of Ripple should be.

Source: Why CoinMarketCap Launched Its Liquidity Metric – Unchained Podcast

Carylyne Chan, chief strategy officer at CoinMarketCap, and Gerald Chee, head of research, discuss the history of CoinMarketCap, why the founder Brandon Chez initially focused on circulating supply to calculate market cap, how the ICO craze has changed the way CoinMarketCap defines circulating supply and how the kimchee premium on the Bitcoin price in Korea at the end of 2017 is influencing the future direction of the website. We cover why CoinMarketCap is branching out into other areas such as metrics, blockchain explorers, hosting conferences and more, how the site has made money historically, the demographics, geographical distribution and behaviors of users on the site, and how CoinMarketCap’s web traffic is 90% correlated to the Bitcoin price.We talk about the fake volume problem, how CoinMarketCap decided to address it with a new liquidity metric, the new Data Accountability and Transparency Alliance they formed, and why they are working with some of the exchanges identified by Bitwise as being the most egregious in faking volumes, and how those exchanges fare when it comes to CMC’s new liquidity metric. We also cover some of the other ways companies have tried to address the fake volume issue, how CoinMarketCap tries to identify the “true price” for any cryptocurrency (and why USDT makes this hard), and what the circulating supply of Ripple should be.

Source: Why CoinMarketCap Launched Its Liquidity Metric – Unchained Podcast

Mechanics of wash trading behind the scenes

Source: Fake volumes in cryptocurrency markets — February report

When one chooses a broker or an exchange, one usually pays due attention to the fee level. However, when choosing a right investment, especially in the crypto economy, people often forget about the liquidity of an asset, although it may have even more negative impact on the overall performance of the investment than the fees paid.

Source: Why Liquidity Matters – Crypto-integrity – Medium

(1) Coinbase Pro provides the best bitcoin liquidity and execution opportunities in the cryptocurrency market. Bitstamp and Kraken are a very good choice for institutional and retail investors respectively. Bitfinex offers deep liquidity at the top of the book.(2) Liquidity is an important criterion for selecting an exchange because it is easier to produce artificial (fake) volume than artificial liquidity, which generally implies a market risk for a fraudulent exchange.(3) The analysis of order book dynamics is illustrative of how price discovery works. The ecosystem is highly correlated and originating price shifts trigger almost immediate price movements on other exchanges. However, the high reported volume doesn’t automatically mean price discovery. The spike on April 2, 2019, was likely to be originated on Bitfinex, while other exchanges followed the trend.(4) Binance has a very odd histogram of intervals between consequent trades. It looks like a sinusoidal function with a descending trend. However, other exchanges have suspicious outliers, too.

Source: True liquidity and price discovery in crypto space – HackerNoon.com – Medium

Source: algorithms true price involving liquidity – Google Search

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Source: Accept Bitcoin & Crypto Donations | The Giving Block | United States