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Archive for the ‘bitcoin’ category: Page 44

Dec 13, 2018

BTC plunge: Why I don’t worry

Posted by in categories: bitcoin, cryptocurrencies

Join me for a quick review of the spikes & dips in the Bitcoin exchange rate. This time, it’s all about one very simple chart. [continue below graphic]…

The chart below shows a history of BTC price spikes, dips and recovery. Click to enlarge, then start at the top—and move down.

      • Consider the percent-pullback after each spike (red label)
      • Think about the stellar rebound after each drop (green label)

The table at right illustrates why I do not get too worked up over the plunge in the BTC exchange rate. There are no fundamental flaws in Bitcoin math or mechanisms, the market need for benefits conveyed by Bitcoin is terrific, and popular arguments against Bitcoin are severely flawed. Skeptics and Critics typically say this:

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Dec 13, 2018

Timechain : a Decade of Misunderstanding Blockchain

Posted by in category: bitcoin

https://paper.li/e-1437691924#/


Abstract: The term “blockchain” has caused much confusion and damage due to its failure to accurately capture the core characteristics of decentralized byzantine fault tolerant systems. In this article, a restoration of an older term is proposed as replacement.

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Dec 11, 2018

Best Bitcoin wallet: Hardware or hosted?

Posted by in categories: bitcoin, cryptocurrencies
The question asked in the title has been edited from what was asked today at Quora, the Q&A forum at which I participate as expert columnist. The original question was a bit more ambiguous: “Which is better? — a digital bitcoin wallet or a physical one?” I have included the original question, to better distinguish products and terms. All bitcoin wallets are all digital—even a paper wallet, whether a character string or a QR code. Conversely, an exchange may use “physical” wallets to host client assets, individual application wallets, or they may simply keep records of client assets that are stored, collectively, in their own master wallet. To complicate matters, Bitcoin is never really “stored” by you or an exchange service. It is stored on a public blockchain, where assets and transaction history can be traced through time by anyone. Therefore, all forms of user access are “digital”. What the reader really wants to know is “Which form of access control is better? — custodial or personal?” Type 1: Custodial Wallets are Managed by a Trusted Party They hold your assets. You view a statement balance—just like a bank account.

Dec 11, 2018

How developments in Quantum Computing could affect cryptocurrencies

Posted by in categories: bitcoin, computing, cryptocurrencies, economics, mathematics, particle physics, quantum physics

by Eloisa Marchesoni

Today, I will talk about the recent creation of really intelligent machines, able to solve difficult problems, to recreate the creativity and versatility of the human mind, machines not only able to excel in a single activity but to abstract general information and find solutions that are unthinkable for us. I will not talk about blockchain, but about another revolution (less economic and more mathematical), which is all about computing: quantum computers.

Quantum computing is not really new, as we have been talking about it for a couple of decades already, but we are just now witnessing the transition from theory to realization of such technology. Quantum computers were first theorized at the beginning of the 1980s, but only in the last few years, thanks to the commitment of companies like Google and IBM, a strong impulse has been pushing the development of these machines. The quantum computer is able to use quantum particles (imagine them to be like electrons or photons) to process information. The particles act as positive or negative (i., the 0 and the 1 that we are used to see in traditional computer science) alternatively or at the same time, thus generating quantum information bits called “qubits”, which can have value either 0 or 1 or a quantum superposition of 0 and 1.

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Dec 9, 2018

Future Cities & Societies: Governance, Law, Blockchain

Posted by in categories: bitcoin, governance, law, transhumanism

I’m speaking next Friday evening, Dec 14, at 6PM then doing a panel at the NodeSF in San Francisco. Hosted by the Institute for Competitive Governance and Startup Societies Foundation, the event will discuss innovative approaches for new cities and societies. Join us in building the future! https://www.eventbrite.com/e/future-cities-distributed-socie…gFeha96wn2 #transhumanism


How are the future cities going to look like? Are they going to be sovereign states? Will people have decentralized governments? What is the future of law like?

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Dec 5, 2018

Quantum computers put blockchain security at risk

Posted by in categories: bitcoin, computing, cryptocurrencies, encryption, finance, government, health, internet, quantum physics, security

The longer-term answer is to develop and scale up the quantum communication network and, subsequently, the quantum internet. This will take major investments from governments. However, countries will benefit from the greater security offered13. For example, Canada keeps its census data secret for 92 years, a term that only quantum cryptography can assure. Government agencies could use quantum-secured blockchain platforms to protect citizens’ personal financial and health data. Countries leading major research efforts in quantum technologies, such as China, the United States and members of the European Union, will be among the early adopters. They should invest immediately in research. Blockchains should be a case study for Europe’s Quantum Key Distribution Testbed programme, for example.


Bitcoin and other cryptocurrencies will founder unless they integrate quantum technologies, warn Aleksey K. Fedorov, Evgeniy O. Kiktenko and Alexander I. Lvovsky. Bitcoin and other cryptocurrencies will founder unless they integrate quantum technologies, warn Aleksey K. Fedorov, Evgeniy O. Kiktenko and Alexander I. Lvovsky.

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Nov 28, 2018

Bitcoin will make you filthy rich, cure cancer and prevent earthquakes!!!

Posted by in categories: biotech/medical, bitcoin, internet

Giulio Prisco ‘s key point: “My first reaction to Satoshi’s white paper was like, here’s a possibly viable implementation of an internet currency independent of nation states, which can be used for online payments with strong privacy. My current description of bitcoin is exactly the same.”


Forget the ongoing bitcoin crash. Forget that you lost 80 percent of your crypto wealth since Christmas last year. If you HODL, Crypto Santa will make you filthy rich by Christmas next year.

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Nov 26, 2018

Bitcoin Cash Wars End With No Relief for Biggest Cryptocurrency

Posted by in categories: bitcoin, cryptocurrencies, policy

Update on bitcoin crash https://www.bloomberg.com/news/articles/2018-11-23/b…tocurrency https://paper.li/e-1437691924


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Nov 25, 2018

Ohio is the first state to accept bitcoin for paying business taxes

Posted by in categories: bitcoin, business, cryptocurrencies

The option is limited to businesses, but it’s another step toward US legitimacy for cryptocurrency.

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Nov 16, 2018

These DNA Startups Want to Put All of You on the Blockchain

Posted by in categories: biotech/medical, bitcoin, genetics

Two different marketplaces for genetic data, Nebula and EncrypGen, recently launched with the promise of better protections for their users.

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