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Archive for the ‘cryptocurrencies’ category: Page 20

Jan 1, 2018

How does the Blockchain ‘know’ you have printed a paper wallet?

Posted by in categories: bitcoin, cryptocurrencies, economics, internet

Let’s say that you no longer trust your currency exchange to host your Bitcoin wallet and you don’t trust a Trezor or Nano hardware wallet. You don’t trust your memory and you don’t trust your kids. And you certainly know better than to keep your wealth in your PC or phone. That would be downright crazy—right? What can you do?!

A growing number of people are printing paper wallets. It is the ultimate form of security. Some individuals even delete their cloud wallet, leaving everything to a string of hex characters or a QR code printed onto a slip of paper. (NB. You had better be certain that you and a few trusted individuals know how to find that piece of paper!)

But here’s an interesting mystery. If you print the paper wallet off-line and delete your other wallets, then how can the blockchain ‘know’ that you have changed wallets? The short answer: It doesn’t and you haven’t!

Let’s explore a bit deeper…

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Dec 29, 2017

Should we ‘out’ Bitcoin creator, Satoshi?

Posted by in categories: bitcoin, cryptocurrencies, economics

Everyone likes a good mystery. After all, who isn’t fascinated with Sherlock Holmes or the Hardy Boys? The thirst to explore a mystery led us to the New World, to the ocean depths and into space.

One of the great mysteries of the past decade is the identity of Satoshi Nakamoto, the inventor of Bitcoin and the blockchain. Some have even stepped forward in an effort to usurp his identity for fame, infamy or fortune. But in this case, we have a mystery in which the subject does not wish to be fingered. He prefers anonymity.

This raises an interesting question. What could be achieved by discovering or revealing the identity of the illusive Satoshi Nakamoto?…

The blockchain and Bitcoin present radically transformative methodologies with far ranging, beneficial impact on business, transparency and social order.

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Dec 16, 2017

Is Bitcoin a Store of Value?

Posted by in categories: bitcoin, cryptocurrencies, economics, finance, government

Bitcoin has many characteristics of a currency. It is portable, fungible, divisible, resistant to forgery, and it clearly has value. Today, that value came close to $20,000 per coin. Whether it has ‘intrinsic value’ is somewhat of a moot question, because the US dollar hasn’t exhibited this trait since 1972. Today, economists don’t even recognize the intrinsic value of gold—beyond a robust, international, supply-demand network.

Lately, Bitcoin is failing as a viable currency, at least for everyday consumer transactions. The settlement of each transaction is bogged down with long delays and a very high cost. The situation has become critical because of squabbling between miners, users and developers over how to offer speed transactions or lower the cost of settlement. Bitcoin forks and altcoins such as Dash and Bitcoin Cash demonstrate that these technical issues have solutions. Since Bitcoin is adaptable, I believe that these issues are temporary.

But an interesting question is not whether Bitcoin will eventually become a consumer currency. it is whether Bitcoin can distinguish itself as a store of value, rather than just an instrument for payment or debt settlement. After all, a Visa credit card, a traveler’s check and an Amazon gift card can all be used in retail payments, but none of them have value unless backed by someone or something. US Dollars on the other hand are perceived as inherently valuable. They carry the clout and gravitas of institutions and populations, without users questioning from where value arises. (This is changing, but bear with me)…

What about Bitcoin? Does owning some bitcoin represent a store of value? Yes: It absolutely does!

Continue reading “Is Bitcoin a Store of Value?” »

Dec 15, 2017

Now you can use your body to mine crypto

Posted by in categories: bitcoin, cryptocurrencies

Reminds me of a movie I once saw …the Matrix???


Posted by Cointelegraph. Bitcoin and Cryptocurrency News.

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Dec 11, 2017

Bitcoin Fair Value Calculation

Posted by in categories: bitcoin, cryptocurrencies, economics, finance, government

In an April 2014 article, I demonstrated how one might approach a fair Bitcoin valuation.

  • Original Methodology: What fraction of the daily float
    needed to support daily global commerce will Bitcoin capture?

My methodology was based on the demand that Bitcoin would generate if it displaced a small fraction of cash and credit used for retail and commercial payments around the world. At the time, Bitcoin had a value of USD $450. I estimated that if it captured 5% of global payments, it would have a fair value of about $10,000/BTC (I didn’t complete the calculation—I left that up to the reader. That’s because I was concerned that publishing such a prediction would cause me to lose credibility as an economist and blogger. For what it is worth, I also predicted that a rise to $10,000 would take 5~8 years.

As you might imagine, my friends and family urged me to unload my BTC investment. The April 2014 price of $450/BTC seemed very high to most armchair analysts. After all, thirteen months earlier, it had been just $45.

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Dec 7, 2017

Bitcoin: up 120% in less than 2 months

Posted by in categories: bitcoin, cryptocurrencies, economics

At the end of October, I delivered a keynote speech at the Cryptocurrency Expo in Dubai. That was just 5 weeks ago. When I left for the conference, Bitcoin was trading at $6,300/BTC. But in the next few weeks, it reached $10,000. Last week, I liquidated part of my investment at just under $13,000/BTC. Now, Bitcoin is about to cross $16,000. (I began writing this 10 minutes ago…but it has risen another $1600.00. Now, it is $17,000).

Dear Reader: I believe in Bitcoin. Yet, there is a “But” in the last paragraph below…

I believe in Bitcoin. Its rise is not fueled solely by investor hysteria. Rather, it is a product of delayed appreciation for a radical, transformative network technology.

Continue reading “Bitcoin: up 120% in less than 2 months” »

Dec 1, 2017

Company Offers to Freeze Your Body Before Death

Posted by in categories: biotech/medical, bitcoin, cryonics, cryptocurrencies, law, life extension

Summary: Cryonics firm CryoGen makes a radical new proposal to freeze people before death, known as ‘mercy freezing.’ Customers will pay for the Cryopreservation: Also called cryobanking. The process of cooling and storing cells, tissues, or organs at very low or freezing temperatures to save them for future use. Used in cryonics and the storage of reproductive cells in fertility treatments. [Source – NCI].” class=” glossaryLink “cryopreservation using a new blockchain based cryptocurrency called the CRYO. [This article first appeared on LongevityFacts.com. Author: Brady Hartman. Follow us on Reddit | Google+ | Facebook. ]

Cryonics is legally allowed only after death, and during this time the body starts to decay. Cryopreservation should ideally be performed within a few minutes of the patient’s demise. This happens less than half the time for current cryonics clients, and their tissues start turning to mush before freezing.

A Russian-Swiss company named CryoGen plans to solve that problem by freezing people before death, calling it ‘mercy freezing.’ CryoGen is building a cryonics lab in Switzerland, a country where euthanasia is legal. According to a white paper on CryoGen’s website.

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Nov 8, 2017

‘$300M in Cryptocurrency’ Accidentally Lost Forever Due to Bug

Posted by in categories: cryptocurrencies, security

The user, “devops199”, triggered the flaw apparently by accident. When they realised what they had done, they attempted to undo the damage by deleting the code which had transferred ownership of the funds. Rather than returning the money, however, that simply locked all the funds in those multisignature wallets permanently, with no way to access them.

“This means that currently no funds can be moved out of the multi-sig wallets,” Parity says in a security advisory.

Effectively, a user accidentally stole hundreds of wallets simultaneously, and then set them on fire in a panic while trying to give them back.

Continue reading “‘$300M in Cryptocurrency’ Accidentally Lost Forever Due to Bug” »

Nov 4, 2017

Supporting a decentralized, uncensored Internet for every person on the planet

Posted by in categories: bitcoin, cryptocurrencies, encryption, internet

What makes a better Internet possible? At Orchid Labs, our goal is to ensure that every person on Earth can have access to an open, decentralized, and uncensored Internet. We believe a better Internet is one that isn’t controlled by the few, but open to all.

Currently, Internet access for the majority of the people on Earth is censored and monitored. Because of this, many Internet users are blocked from freely communicating, collaborating, and accessing information. The current centralized system, which limits our ability to communicate and learn — while also harvesting and selling our personal data — is far from the full potential of what the internet could be and strays from the original intention of its creators.

That’s why we’ve launched the Orchid Protocol, an open-source overlay network that uses excess bandwidth on top of the existing Internet to ensure that people — no matter where they live on our planet — can have unrestricted access to information and collaboration. Orchid’s protocol combines surplus bandwidth, state-of-the-art encryption, and a decentralized infrastructure enabling any Internet user to participate and exchange bandwidth for payment in peer-to-peer transactions using Orchid tokens on the Ethereum blockchain.

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Oct 26, 2017

Building the Blockchain to End All Blockchains

Posted by in categories: bitcoin, cryptocurrencies, singularity

“If one blockchain were to become dominant, then the others may well fade away.” #singularityuniversity


Bitcoin, the first practical implementation of blockchain technology, was the buying opportunity of all time. The price of bitcoin has risen faster than any other asset in history, including tulips at the height of the tulip bubble.

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