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Coursera.org

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Comparison of mining pools Reward types & explanation: CPPSRB - Capped Pay Per Share with Recent Backpay. [1] DGM - Double Geometric Method. A hybrid between PPLNS and Geometric reward types that enables to operator to absorb some of the variance risk. Operator receives portion of payout on short rounds and returns it on longer rounds to normalize payments. [2] ESMPPS - Equalized Shared Maximum Pay Per Share. Like SMPPS, but equalizes payments fairly among all those who are owed. [3] POT - Pay On Target. A statistically valid analysis of some pools and their payout methods: Bitcoin network and pool analysis SPV Mining / Old Bitcoin Core The following pools are known or strongly suspected to be mining on top of blocks before fully validating them with Bitcoin Core 0.9.5 or later. BTC Nuggets F2Pool[5] AntPool[5] The following pools are believed to be currently fully validating blocks with Bitcoin Core 0.9.5 or later (0.10.2 or later recommended due to DoS vulnerabilities): References See also

change SIX Interbank Clearing Ltd (SIX) is the official record keeper for the ISO 4217 list of three-letter currency symbols. SIX has declined previous requests to assign a symbol for Bitcoin, providing shallow arguments about how Bitcoin is not associated with any institution or government. However, during 2012, Bitcoin has further re-inforced its status as the dominant paradigm in electronic currency.

When an economist tells you something that is based on a theory or a model, you should be very skeptical This was the year we were supposed to get hoverboards and flying cars. Instead we got more robots that fall over. Even though they were all over the news, television, and cinema screens this year, robots have not really entered the mainstream yet. The DARPA Robotics Challenge Inspired by the Fukushima Daiichi nuclear disaster of 2011, the Pentagon’s research division, DARPA, wanted to host a competition to create robots that could operate in situations generally dangerous to humans. Although the goal of the competition was a grand one—to spur development of robots that could one day save our lives—the reality was far more comical. Who knows—in eight years, maybe we’ll have our own personal robots at home, as more and more money gets pumped into research. Tomatan This is just a Japanese robot that feeds you tomatoes while you run. hitchBOT I was very close to not including this on the list, since it’s barely a robot. Slackbot Facebook M Every other virtual assistant MegaBots Robot World Cup

Alpha Point Bitcoin/Litecoin Exchange Bitcoin based in New York _stevemoore : Ceo of @bitpay Tony giving... _stevemoore : Cofounder of @bitpay Steve... Threat of capital controls looms over Thailand as it loses “currency war” It was the cold, slushy week in Manhattan after late January’s blizzard and Chloe was dolefully eyeing the darkened studio where she awaited her call time. She wore a rose-colored cashmere sweater, a bridesmaid gift from a New York society wedding weeks earlier. “I didn’t even say hi!” Chloe has 115,000 followers on Instagram. Since the days of Lassie and Spuds MacKenzie, there have been famous non-human actors and models. Animals at the very highest echelons of fame have NFL-size entourages. Hillary Clinton once wrote an op-ed for Quartz. Even pets with relatively middling-sized followings have access to opportunities human fame-seekers would envy: product lines, endorsements, guest appearances, and endless freebies. In some cases they are actually supplanting human equivalents. Animal Instagram makes perfect sense, the place where America’s $60 billion pet industry and obsession with curated moments come together in an adorably fuzzy ball. Friends in high places “I’ve had people cry.

Learn About Mining Bitcoin From a Redditor Over and over, you ask yourself the same question: "What are Bitcoins? Do they bite?" Well, no, they don't. We can tell you that much from experience. The digital peer-to-peer currency was invented in 2009 and has only recently surged into the broad public consciousness. Redditor Artesian elaborated on this extended metaphor, which runs as deep as the Bitcoin mine itself — just imagine CPUs are pickaxes and GPUs are jackhammers. Dig deeper into the Bitcoin phenomenon with the above video, courtesy of AcademicEarth.org. Now that you know a bit more about Bitcoin, do you think you'll start mining? Thumbnail image courtesy of Flickr, Zach Copley

Bitcoin: Fad, fraud or the future? — RT Op-Edge Patrick L Young is CEO of niche crowdfunding platform HanzaTrade and an advisor to fund managers throughout the world. Born in Ireland, he is an active investor in the “New Europe” amongst other emerging markets and is an active Co Founder of grassroots startup group "Mission ToRun." Home Page: Twitter: @FrontierFinance Digital Currency Bitcoin is big news: Is it really the panacea for the problems of money or just another quick fix? Bitcoin offers a fascinating peek into the future of money. So, let’s take a deep breath and try to examine Bitcoin as dispassionately as possible. Digital currencies have been with us for some time but the path has been littered with failures. The genesis of Bitcoin is fascinating: computers do inordinately tricky sums and are awarded Bitcoins as a result of their computative endeavours according to formulae created by the mysterious Satoshi Nakamoto. To appreciate Bitcoin, consider Copernican theory.

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