“I haven’t placed a vote on a blockchain yet, but it’s so simple to do that I expect I will be doing it frequently soon enough.”
Worried about security for your bitcoin in the face of quantum computing? According to computer researchers, there’s no reason to be.
Source: https://hacked.com/breathe-easy-bitcoiners-quantum-computing…encryption
Some people assume that once quantum computing comes along modern encryption technologies will be outpowered. But experts are starting to posit that hash functions and asymmetric encryption could defend not only against modern computers, but also against quantum attackers from the future.
Continue reading “Bitcoin users relax: Quantum computing no match for SHA-2 encryption” »
“Central banks increasingly are under pressure to keep ‘their’ currencies attractive. They should let the general public access electronic central bank money, not just financial institutions ( Niepelt 2015). To do this, they should embrace the blockchain.”
By now, most Bitcoin and Blockchain enthusiasts are aware of four looming issues that threaten the conversion of Bitcoin from an instrument of academics, criminal activity, and closed circle communities into a broader instrument that is fungible, private, stable, ubiquitous and recognized as a currency—and not just an investment unit or a transaction instrument.
These are the elephants in the room:
As an Op-Ed pundit, I value original content. But the article, below, on Bitcoin fungibility, and this one on the post-incentive era, are a well-deserved nod to inspired thinking by other writers on issues that loom over the cryptocurrency community.
This article at Coinidol comes from an unlikely source: Jacob Okonya is a graduate student in Uganda. He is highly articulate, has a keen sense of market economics and the evolution of technology adoption. He is also a quick study and a budding columnist.
I was pointed to this article by Jon Matonis, Founding Director, Bitcoin Foundation. I was sufficiently moved to highlight it here at Lifeboat Foundation, where I am a contributing writer.
On Fungibility, Bitcoin, Monero and ZCash … [backup]
This is among the best general introductions I have come across on traceability and the false illusion of privacy. The explanation of coin mixing provides and 
excellent, quick & brief overview.
Regarding transaction privacy, a few alt-coins provide enhanced immunity or deniability from forensic analysis. But if your bet is on Bitcoin (as it must be), the future is headed toward super-mixing and wallet trading by desgin and by default. Just as the big email providers haved added secure transit,
Bitcoin will eventually be fully randomized and anonymized per trade and even when assets are idle. It’s not about criminals; it’s about protecting business, government and individuals. It’s about liberty and our freedoms. [Continue below image]
Continue reading “Bitcoin Fungibility: A Benefit of privacy & anonymity” »
“That contemporary artists are exploring blockchain further suggests the technology has reached a level of cultural significance beyond bitcoin’s initial hype.”
Article repeats a lot of the knowns on QC such as bit v. Qubit; and finally provides some good info on pros and cons of Bitcoin and Lamport signatures technique with QC. However, the author didn’t seem to mention any of the work that D-Wave for example is doing with Block chaining. Also, I saw no mention of the work by Oxford on the logic gate which improve both the information processing performance and the security of information transmissions.
In a classical computer bits are used that can either be 0 or 1. In a quantum computer these bits are replaced with Qubits (quantum bits). These Qubits can be 0 or 1, or both at the same time. This is caused by a phenomenon in the quantum realm called superposition. At scales the size of an atom and small molecules, the spin of particles is not determined until it is observed. A pair of Qubits can be in any quantum superposition of 4 states, and three Qubits in any superposition of 8 states. In general, a quantum computer with n Qubits can be in a superposition of up to 2^n different states simultaneously (this compares to a normal computer that can only be in one of these 2^n states at any one time). Because of this, a quantum computer is able to perform computations at the same time, while classical computers perform computations one at a time.
Continue reading “Quantum computing and cryptocurrencies: Are Steemit and bitcoin safe?” »
I was asked this at Quora.com, where I answer questions under the pen name, ‘Ellery’. But the query deserves a companion question, and so I approached the reply by answering two questions.
You might have asked “Why was Bitcoin designed to have a cap?” But, instead, you asked “Why is the cap set at 21 million bitcoins”. Let’s explore both questions starting with the choice of a circulation cap…
Why set the cap at 21 million BTC?
The choice of a cap number is arbitrary and in fact, it could be 1 or it could be 1 hundred trillion. It makes no difference at all and it has no effect on the economy—even if Bitcoin were to be adopted as a currency all over the world. If it were set to 1 BTC, we would simply discuss nano-BTC instead of 1 BTC for amounts of about $650.
Last week I dipped my toes in the waters of the Lifeboat blog and shared a link about blockchain technology. If you haven’t heard about blockchain technology yet, you can read about it here, here, here, here, here…you get the picture. Blockchain has tons of potential, and appears to also attract hype and money. All which goes to say, there has been a lot of buzz about its social and economic potential. But there is another aspect of blockchain that deserves some futurist exploration, which is that it signals we live in Postnormal Times.
Postnormal Times (PNT) is a fantastic foresight concept that I will focus on in my upcoming Lifeboat posts. There is an underlying theory to it; Ziauddin Sardar explains the entire idea and how it fits into futures studies. Ziauddin Sardar with John Sweeney have expanded the work into a futurist method called The Three Tomorrows of Postnormal Times. It’s well worth reading up on if you enjoy a futurist approach to your work and studies.
I’m still a beginner, but essentially the idea is that we are now in time is a period best characterized as “postnormal,” meaning that the usual ways of solving problems and making progress have stopped working. Our go-to responses, based on all the previously reliable ways of being in and understanding the world are becoming irrelevant and dysfunctional. The simplest way to introduce Sardar’s concept is the three C’s: complexity, chaos and contradictions. These are the key characteristics of postnormal times which I will be exploring in my posts about technology and humanity. I believe the PNT perspective leads to some useful observations about the direction of society over the next decades.
Back to my blockchain example: the Raketa watch company is implementing blockchain in manufacturing, which will protect inventory from counterfeiting. This development signals PNT because it speaks to the complexity of globalized financial and consumer markets. In this case, so intricate as to require a new, high-tech, largely automated and seemingly fail-proof technology. PNT is evident when previous methods of running a company are no longer sound. Enter blockchain to navigate this new business condition.
