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• Bitcoin and Ethereum Are Heading for a 'Death Cross.' Should You Care?
• Crypto Header
• Why China's bitcoin miners are moving to Texas
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• Is a bitcoin crash coming?
• Block hashing algorithm
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• Bitcoin heading for worst yearly start since at least 2012
• Cryptocurrency
• The crypto-craze in India and where it is heading

WATCH RELATED VIDEO: But how does bitcoin actually work?

Bitcoin and Ethereum Are Heading for a 'Death Cross.' Should You Care?

Think you can predict the future? Here are some experts from the past who got it right—or delightfully wrong. At least 50 years before credit or debit cards were conceived of, science-fiction writer Edward Bellamy described a cashless society in his novel Looking Backward.

In one of his dimmer moments, Thomas Edison declared gold was on its way out. The reason? Diners Club president Alfred Bloomingdale foresaw a cultural and socioeconomic divide across two classes of people: those with credit cards, and those without. Armer foresaw that a whole lot of data on how people spent their money would be created as a byproduct of transactions going digital—and that this information would be ripe for misuse.

Illustration by Ksusha Itwazcool. By , people over age 65 will outnumber children under age 5. While the internet has made online learning virtually free, the price of traditional teaching is still soaring.

When the job market is transforming more quickly each year, how can we reinvent education to keep up? As games become more addictive and expensive to play, how will they transform our social relationships as well as our leisure time?

Technology is transforming homes all over the world. In some places, cheap devices are powering and connecting homes long left off the grid. In others, newly automated and networked machines are reinventing convenience—but at what cost to privacy and human connection? If automation continues at its current pace, million workers around the globe will be displaced by In spite of the vast economic effects these changes will bring, will we seize the opportunity to reconceive the very meaning of work?

As global climate change worsens and the population expands, humanity must produce more food in the next 50 years than it has in the past 10, Are lab-made meat and automation the key to farming in the future, or must we tend to the soil we already have? By , nearly 10 billion people will share our planet. Online manipulation and immersive media have begun to eradicate our shared notion of authenticity and trust. How will society change when we can no longer believe what we see, hear, or think?

Haves and have-nots Diners Club president Alfred Bloomingdale foresaw a cultural and socioeconomic divide across two classes of people: those with credit cards, and those without. Keep reading Thomas Edison thought gold would be worthless, and other money predictions from the past.

More from What Happens Next. Future of Aging By , people over age 65 will outnumber children under age 5. Future of College While the internet has made online learning virtually free, the price of traditional teaching is still soaring. Future of Home Technology is transforming homes all over the world. Future of Work If automation continues at its current pace, million workers around the globe will be displaced by Future of Food As global climate change worsens and the population expands, humanity must produce more food in the next 50 years than it has in the past 10, Future of Cities By , nearly 10 billion people will share our planet.

Future of Fact Online manipulation and immersive media have begun to eradicate our shared notion of authenticity and trust. Update your browser for the best experience.

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Bitcoin pioneered decentralized infrastructure and Ethereum brought programmability. But earlier proof-of-work blockchains consume massive amounts of energy and process transactions slowly in order to achieve acceptable levels of security. Heavy bandwidth consumption by these technologies leads to expensive fees, even for a simple cryptocurrency transaction. The Hedera proof-of-stake public network, powered by hashgraph consensus, achieves the highest-grade of security possible ABFT , with blazing-fast transaction speeds and incredibly low bandwidth consumption.

Why China's bitcoin miners are moving to Texas

For the week, the apex coin has fallen 6. Over a seven-day period, Ethereum has fallen 4. Over the last seven days, the meme coin inched down 0. Over seven days, it has plunged Decred shot up The crypto market is going to start behaving like tech stocks. Lots of early volatility, then we start to see basically up only with turbulence as the user bases continue to grow.

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This is relatively in line with consensus, the analysts wrote. Downside risks include pricing compression and the threat of a so-called crypto winter, during which the market cap of cryptocurrencies shrinks and volatility falls, the report said. The leader in news and information on cryptocurrency, digital assets and the future of money, CoinDesk is a media outlet that strives for the highest journalistic standards and abides by a strict set of editorial policies. CoinDesk is an independent operating subsidiary of Digital Currency Group , which invests in cryptocurrencies and blockchain startups.

Is a bitcoin crash coming?

Peter Griffin Thu, 06 Jan Trustworthy, balanced journalism every day from our growing team of New Zealand business reporters and commentators, plus more in our weekend magazine section, The Life. You will be charged in 10 days unless you cancel beforehand. We will remind you three times before charging you. All subscriptions auto renew but are easy to cancel. The fund manager is reportedly being shopped around to would-be buyers after Kiwi Group successfully sold Hatch and Kiwi Insurance.

Block hashing algorithm

Advising clients where innovation and regulation collide. Since the inception of blockchain and cryptocurrency, WilmerHale has provided efficient, strategic advice to clients working in the blockchain ecosystem. We have deep roots in the world of securities, futures and derivatives regulation and a long track record representing many of the most innovative companies working with blockchain and digital assets. Where these worlds meet, we have both the technical insight and the judgment to provide informed, actionable advice on novel and challenging legal and regulatory issues. We help dynamic companies stay agile and achieve their goals while mitigating risk, and guide established financial institutions as they explore the potential of blockchain technology.

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Bitcoin heading for worst yearly start since at least 2012

RELATED VIDEO: Blockchain/Bitcoin for beginners 7: Blockchain header: Merkle roots and SPV transaction verification

A lightweight node for syncing only bitcoin block headers from a specific height. A bcoin spv node is already very lightweight, around MB of chain data on mainnet as of block , However, it also stores some extra metadata with the headers. This helps for PoW verification but makes the headers a little heavier than the minimum 80 bytes per header in fact bcoin stores a data structure internally called the ChainEntry for spv sync rather than just the headers. This Bitcoin Header Node implementation reduces the size of the data stored on disk for header syncing by using an in-memory chain to sync with peers and a separate indexer database to store the headers.

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Proof of work PoW is a form of cryptographic proof in which one party the prover proves to others the verifiers that a certain amount of a specific computational effort has been expended. Verifiers can subsequently confirm this expenditure with minimal effort on their part. The concept was invented by Cynthia Dwork and Moni Naor in as a way to deter denial-of-service attacks and other service abuses such as spam on a network by requiring some work from a service requester, usually meaning processing time by a computer. The term "proof of work" was first coined and formalized in a paper by Markus Jakobsson and Ari Juels. PoW and PoS proof of stake are the two best known Sybil deterrence mechanisms. In the context of cryptocurrencies they are the most common mechanisms. A key feature of proof-of-work schemes is their asymmetry: the work — the computation — must be moderately hard yet feasible on the prover or requester side but easy to check for the verifier or service provider.

The crypto-craze in India and where it is heading

While most transactions made with virtual coins are legitimate, cryptocurrencies are also used for a wide range of illicit or criminal purposes. However, the links between Zcash and illicit or criminal activities have not been substantially studied until now. Researchers found no evidence of widespread illicit use of Zcash, and — unlike Bitcoin — Zcash has only a minor presence on the dark web, but that may be because users engaged in illicit activities may not fully understand the Zcash operating model.