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Rental attacks mean that blockchains must evolve or die

Abraham Othman Contributor Abraham Othman is a visiting scholar in the Operations, Information and Decisions department of the Wharton School (University of Pennsylvania). He is an advisor to a number of blockchain applications including Augur, Codex, and Decent. Blockchain technologies have a well-earned reputation for hacking and fraud, but the recent theft of more than twenty million dollars of second-tier cryptocurrencies like Bitcoin Gold, Verge, and ZenCash was a fundamental attack on the core mechanisms that allow cryptocurrencies to function. The way that most blockchains (including Bitcoin and Ethereum) function now is called Proof-of-Work; miners must solve hard computational problems to add new blocks of transactions to the chain and the majority (i.e., 51%) of the computational power can determine what transactions appear in the public ledger. In May and June, these second-tier cryptocurrencies suffered from what is called a “51% attack”, where attackers rented more processing power than the...
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Inside the rise and reign of supergiant venture capital rounds

There was a time not so long ago when nine-figure venture capital rounds weren’t a near-daily feature of tech business news. But now funding rounds of $100 million or more cross the wires with stunning frequency. The era of supergiant rounds is now the new normal. This is attributable, in part, to billions of dollars flowing into new venture capital funds — the largest of which are raised by the oldest, most entrenched firms — and competition from relative newcomers, like SoftBank. Q2 2018 may have set new records for worldwide VC deal and dollar volume in this post-dot com cycle, but that belies an important fact: Investors are dumping the bulk of capital into a relatively small number of companies. The rise of supergiant rounds wound up in a “takeover” of the market. The chart below shows the proportion of capital raised in rounds of $100 million or more, tracing the period between Q1...
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Here are some of the movie and TV trailers to come out of San Diego Comic-Con 2018

Over the course of a weekend we got a glimpse at some of the coming seasons and movies for various sci-fi, superhero, and other types of highly-anticipated fan-favorite franchises from the San Diego Comic-Con this year. Here’s a quick selection of some of the ones shown over the weekend: Aquaman Fantastic Beasts: The Crimes of Grindelwald Godzilla: King of Monsters Star Wars: The Clone Wars Disenchantment Arrow: Season 7 Marvel’s Iron Fist Season 2 Doctor Who Nightflyers Titans The Walking Dead: Season 9 Black Lightning Young Justice Legacies Star Trek: Discovery — Season 2 DC’s Legends of Tomorrow The Flash Supergirl Glass Shazam The Gifted Legacies Original link
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How to Transfer Contacts from Android to Android

Today here you will learn how to transfer Contacts from one Android Phone to the other Android phone. The reason you are here can be that you have shifted to a new phone. And you want to transfer all of your contacts from your old Android phone to the new Android Phone. Or you have multiple phones and you want to access Contacts from all the devices. Luckily Android has a feature to transfer contacts. There are more than one ways to transfer contacts from Android to Android. Check out what are the methods you can follow to transfer contacts between Android phones. How to Transfer Contacts from Android to Android 1. Import/Export from Storage This is the easiest method to transfer contacts. And this option is available on all the Android phones. You can use an SD Card or other USB Storage where you can Export Contact and then Import...
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Trill Project aims to be a safe community for people to express their true selves

Trill Project, founded by three high school girls, recently launched out of private beta to help people safely express themselves online. For those unfamiliar with the word “trill,” it’s a combination of “true” and “real.” An investor described it to me as a positive Yik Yak . Trill Project began as a community for teenagers, especially for transgender teens who felt like they didn’t have a safe space to be themselves. It has since expanded it to a platform for everyone to express anything from their struggles with addiction, mental illnesses to workplace issues. “We’re reinventing the narrative of social networking and we kind of elevate social media by being private and anonymous,” Trill Project co-founder Georgia Messinger told TechCrunch over the phone. On Trill Project, everything is anonymous (there are no usernames) and monitored by 50 moderators around the clock. Trill Project also has machine learning algorithms as work to...
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