Bitcoin WhitePaper Day

Bitcoin – A Peer-to-Peer
Electronic Cash System

It’s bitcoin White Paper Day.

The mailing list was hosted by Metzdow and run by a group of cypherpunks who shared ideas on creating a kind of digital currency and payment system. Satoshi shared the whitepaper in a message that read, “Bitcoin P2P e-cash paper,” which outlined the main properties of the system.


“Bitcoin P2P e-cash paper
Satoshi Nakamoto satoshi at vistomail.com
Fri Oct 31 14:10:00 EDT 2008
Previous message: Fw: SHA-3 lounge
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I’ve been working on a new electronic cash system that’s fully
peer-to-peer, with no trusted third party.

The paper is available at:
http://www.bitcoin.org/bitcoin.pdf

The main properties:
Double-spending is prevented with a peer-to-peer network.
No mint or other trusted parties.
Participants can be anonymous.
New coins are made from Hashcash style proof-of-work.
The proof-of-work for new coin generation also powers the
network to prevent double-spending.

Bitcoin: A Peer-to-Peer Electronic Cash System

Abstract. A purely peer-to-peer version of electronic cash would
allow online payments to be sent directly from one party to another
without the burdens of going through a financial institution.
Digital signatures provide part of the solution, but the main
benefits are lost if a trusted party is still required to prevent
double-spending. We propose a solution to the double-spending
problem using a peer-to-peer network. The network timestamps
transactions by hashing them into an ongoing chain of hash-based
proof-of-work, forming a record that cannot be changed without
redoing the proof-of-work. The longest chain not only serves as
proof of the sequence of events witnessed, but proof that it came
from the largest pool of CPU power. As long as honest nodes control
the most CPU power on the network, they can generate the longest
chain and outpace any attackers. The network itself requires
minimal structure. Messages are broadcasted on a best effort basis,
and nodes can leave and rejoin the network at will, accepting the
longest proof-of-work chain as proof of what happened while they
were gone.

Full paper at:
http://www.bitcoin.org/bitcoin.pdf

Satoshi Nakamoto

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The pseudonymous Bitcoin creator disclosed that they had been working on a new electronic cash system that uses a Proof-of-Work (PoW) consensus algorithm that required no trusted third party. Although the document met mixed reactions, it was the beginning of what is known today as blockchain technology.

A couple of months after the release, the Bitcoin network was launched, with the first block mined on January 3, 2009. About eight days later, Hal Finney received the first transaction of 10 BTC from Nakamoto, after which he posted a legendary tweet that read:

In the 14 years since that day, bitcoin’s value rose from zero to a peak of $68,990 last November and was hovering above $20,000 on Monday, according to CoinDesk data. The cryptocurrency currently has a market capitalization of over $390 billion. It also inspired the creation of more than 20,000 different cryptocurrencies currently in circulation, while bitcoin remains the largest by market cap.

Over the years, several people have been rumored to be Nakamoto, including early bitcoin contributor Hal Finney, cryptographer Nick Szabo, physicist Dorian Nakamoto and even Tesla’s chief executive Elon Musk, who all denied the claims.

Satoshi’s identity is still a mystery, but Finney was well-known for his contribution to the creation of Bitcoin. He worked hand-in-hand with Nakamoto to find and fix bugs in Bitcoin’s underlying infrastructure. Before his death in 2014, Finney shared a detailed story about his journey with Bitcoin

About a year after the launch of Bitcoin, the cryptocurrency went on to record its first real-world commercial use case when a Florida man spent 10,000 BTC to purchase two large Papa John’s pizzas on May 22, 2010.

Although the coins were worth $41 at prices back then, at today’s price, the transaction is worth more than $200 million. To commemorate the event, the Bitcoin community celebrates Bitcoin Pizza Day every year on May 22.


Bitcoin / bitcoin / blockchain




Bitcoin’s Store of Value

To any intelligent observer, it has been apparent that bitcoin’s primary use has emerged to be store of value/investment.

Yes, bitcoin’s decentralized/permissionless solution to creating an immutable cryptographically secured database brings a vast array of different potential revolutionary applications not seen since the advent of the internet but again, the primary use has emerged to be store of value/investment.

bitcoin has been so good at this store of value thing that it has become detrimentally  successful – enter the (well-funded) hacks and puppets…attacks from the outside and from within – some of which via spread of (FUD) tangent ideas with coders, media, investors, and within bitcoin community to maybe start an idea of even ‘slight’ change.

First, please realize no other tool in modern-day finance has been so successful at being an effective savings mechanism which unlike traditional ‘savings accounts’ this bitcoin actually keeps up in value for you to be able to afford higher cost of rent, education, healthcare, vacations, etc. (due to its beautiful combination of scarcity, a ceiling of 21mill coins, immutable, permissionless->not controlled/influenced, secure, and being established/developed).

This effective savings tool of bitcoin is made accessible to the 99% of us and cuts to the core of exposing the flaw of the central bank fiat system with its funny-money creation out of thin air paper/credit-currencies benefiting the privileged institutions and then last to benefit would be the rest of us.

It can also expose flaws of fraudulent funneling of extra paper-currencies created by central banks…now think, even those privy to any fraudulent funneling of funny-money will see what’s going on and understand something like bitcoin as an alternative being effectively immune to these games that even these bad-actors themselves would buy bitcoin! Bitcoin changes the paradigm of central-bank funny-money (Bitcoin is the anti-funny-money warrior: open & mechanism)….and it has taken off….and will catch the attention of the central banks who by definition, have nearly unlimited systemic resources and influence (think governments, telecoms ISP providers, hardware/chip manufacturers, software developers, search engines, exchange conartists).

Even if a hard-fork doesn’t happen anytime in the next couple of years, it’s the threat that an attack on this pure beautiful store of value system to something even slightly different that can actually gain a noticeable percentage raises the question…is it possible that someday that the groups influencing bitcoin (those controlling mining or those involved with coding development, or the rest buy/transacting in bitcoin) would (either out of ignorance/misunderstanding or out of vested-interest to undermine bitcoin) start demanding (even slight) changes that may contradict the store-of-value that bitcoin is???

That is the big question that if the answer starts looking like yes…then value would plummet as bitcoin no longer be seen as a store of value but would eventually turn into another app coin (i.e. Ethereum) that can do many amazing things but not the one store-value amazing thing that it has done these past few years. the price would be zero-bound (compared to what we’ve been accustomed to with bitcoin today).

If the answer to that question is no (that you reading this, this community, software coders, mining operators, investors, everyday folk, work to stay educated on the above and act to keep the integrity of this bitcoin system)…then even a $50 billion market cap would still be seen as trivial in the financial assets arena where one bitcoin can easily go above $5,000 USD. But really, as the years pack on and integrity remains intact, the price would be infinity-bound. 





Controlled Supply

Bitcoin

“A fixed money supply, or a supply altered only in accord with objective and calculable criteria, is a necessary condition to a meaningful just price of money.”

Fr. Bernard W. Dempsey, S.J. (1903-1960)

In a centralized economy, currency is issued by a central bank at a rate that is supposed to match the growth of the amount of goods that are exchanged so that these goods can be traded with stable prices. The monetary base is controlled by a central bank. In the United States, the Fed increases the monetary base by issuing currency, increasing the amount banks have on reserve or by a process called Quantitative Easing.

In a fully decentralized monetary system, there is no central authority that regulates the monetary base. Instead, currency is created by the nodes of a peer-to-peer network.

The Bitcoin generation algorithm defines, in advance, how currency will be created and at what rate. Any currency that is generated by a malicious user that does not follow the rules will be rejected by the network and thus is worthless.


Currency with Finite Supply


Block reward halving
Controlled supply

Bitcoins are created each time a user discovers a new block. The rate of block creation is adjusted every 2016 blocks to aim for a constant two week adjustment period (equivalent to 6 per hour.)

The number of bitcoins generated per block is set to decrease geometrically, with a 50% reduction every 210,000 blocks, or approximately four years. The result is that the number of bitcoins in existence will not exceed slightly less than 21 million.

Speculated justifications for the unintuitive value “21 million” are that it matches a 4-year reward halving schedule; or the ultimate total number of Satoshis that will be mined is close to the maximum capacity of a 64-bit floating point number. Satoshi has never really justified or explained many of these constants.

Cumulated bitcoin supply

This decreasing-supply algorithm was chosen because it approximates the rate at which commodities like gold are mined. Users who use their computers to perform calculations to try and discover a block are thus called Miners.





21M or Death


21 Million or Death
Arise…

The supply of Bitcoin is fixed at 21 million BTC, and as a hard coded monetary policy of the protocol, the fixed supply of the dominant cryptocurrency cannot be altered.

Former Google Product Director Steve Lee stated that only 1 percent of the world’s population can own more than 0.28 BTC, due to the fixed supply of Bitcoin.

In late 2017, Chainalysis, a blockchain forensics company that monitors and investigates cryptocurrency transactions, revealed in a research paper that up to four million BTC are permanently lost on the blockchain as a result of theft, loss of wallets and private keys, and the dormant wallet of Bitcoin creator Satoshi Nakamoto, which experts have said is no longer accessible.

Kim Grauer, Senior Economist at Chainalysis, said at the time, that the lost supply of BTC is not taken into consideration by the market cap.That means, the real price of BTC could be substantially higher, as 4 to 6 million BTC are estimated to be lost.

Based on the estimate that the supply of Bitcoin is around 17 million, only 0.8 percent of the world population can own more than 0.28 BTC and less than 0.2 of the world population can own more than 1 BTC.

The 0.28 BTC figure introduced by Lee assumes the supply of Bitcoin to be 21 million, as it divides 21 million by 0.28 and divides the outcome of that by the world population that is 7.442 billion. If the research of Chainalysis is accurate and that 4 to 6 million BTC are lost on the blockchain, the supply of Bitcoin should be closer to around 16 to 17 million

The fact that any investor in the global market can be within the 1 percent of the world population with a $1,830 investment demonstrates that the cryptocurrency market is still at its early phase, and in terms of adoption, market development, infrastructure, and regulation, the sector can still grow significantly in the mid to long-term.


Hal Finney

There is no “Whole Coin”





First Time/Small Miner

First time/Small miner reference
for getting started.

If you want to start mining here is what you need… and what you need to know.

This is written for home miners/small farms, but can be used as a guideline for most operations. Use this as a reference for what you need to research, or what questions you need to ask before jumping in.

What you need to mine can be broken down into the following categories:

  • Hardware
  • Electricity
  • Location
  • Internet connection
  • Information

Mining BITCOIN is done exclusively with dedicated BITCOIN mining hardware based on ASICs: https://en.wikipedia.org/wiki/Application-specific_integrated_circuit .

You CAN NOT meaningfully mine bitcoin today with CPU, GPU or even FPGAs. Bitcoin difficulty adapts to match the amount of mining done on the network and has reached levels trillions of times too high to mine meaningfully with PCs, laptops, tablets, phones, webpages, javascript, GPUs, and even generalised SHA hardware.

Even if you combined all the computers in the world, including all known supercomputer, you would not even approach 0.1% of the bitcoin hashrate today.

There isn’t any point attempting to mine bitcoin with CPU or GPU even in the interests of learning as it shares almost nothing with how bitcoin is mined with ASICs and will not teach you anything.

Hardware

Asic Miner:

Here is a list of the companies currently manufacturing Miners for public purchase.

Each one has their Pro’s and Con’s it is up to you to do your research and decide what is best for you.

A few points to consider while researching are :

  • efficiency
  • reliability
  • warranty period/policy
  • power draw

Each company has a different way of handling warranty repairs, depending on your situation and the policy repairs can become cost prohibitive. I will touch more on efficiency and power draw in the electricity section.

• Current list of competitive hardware

Power supply: You will need to purchase a power supply to run your miners. You will find ATX and Server grade PSU’s, the latter being preferred for mining BTC. 

When it comes to selecting a PSU purchase something with a capacity 25% higher than your miner is rated to draw. This will have you operating within the 80% rule.(explained further in the electricity section)

EX. Miner draws 1000 PSU should be able to provide 1250W.

** Many current generation miners are now being manufactured with Integrated PSU. Again do your research to see if your unit comes with or without. Generally you will still need to source a power cable.**

Auxilliaries – Avalon miners require an external controller, 1 per 20 miners. You may have to run additional fans for intake and exhaust depending on your location.

PSU’s can be purchased large enough to run 2 Miners; or the opposite 1 Miner fed by 2 PSU’s. Ensure the PSU you have selected will have the correct amount of PCI-E connectors required to operate your miner(s)

You can also find a large supply of used miners and PSU’s. Again it’s up to you to do your research as these often are a no return transaction.

Electricity

Follow all local codes and regulations

This is the number 1 factor in whether mining is right for you. As discussed with Miners being a 24/7 machine drawing power those costs will make it cost prohibitive for some people to mine. You need to be aware of what your costs/kWh are and run the numbers.

This will be done in a profitability calculator. This is just an example of 1 there are many out there.

( Miner usage in kW ) * ( Hours run per day ) 24 * ( Cost/kWh ) = Cost per Day to Operate

( Ideally less than the FIAT value of BTC mined )

The second part to the electrical requirements of mining is the available service; written for North America.

You will need to figure out the amperage you can spare, what circuits and receptacles you have in place, are you setting up on 220V or 110V. You will need to make sure that you have the right cord end for your PSU to match the receptacle, picking the wrong one can cost you a few days of mining if it has to be shipped.

If you can try and set up on a 220V circuit for 2 reasons :

– You will pull half the amps, and it is more efficient.

– Doing so requires 2 breaker spaces in your panel. Breaker sizing will depend on how many miners you plan to run. Here is the formula for calculating amps.

Watts / Voltage = Amps

Here is where you will bring the 80% rule back into play by sizing the continuous miner load to 80% of the breaker rating. 12 Amps on a 15 Amp breaker, 16 Amps max on a 20 Amp breaker, 24 Amps on a 30 amp breaker.

If/when you increase the amount of miners you are running you may want to look into PDU’s, as opposed to more receptacles. 

Location

This is something that is often overlooked to the headache and frustration of many would be miners. These machines are loud and hot .
You essentially have an electric heater that also uses an industrial fan to keep it from melting itself. This space will need to have the electrical requirements as discussed previously.

So make sure you have a space that is well ventilated with a plan to exhaust heat, and bring in fresh dust free air. I say this as using AC to cool the room will eat into your profits and may even make mining unprofitable.

The noise issue is a consideration you can sort out depending on whats available. (garage, basement, remote building)

Both of these issues can be handled with hosting, which is further explained in the information section.

Internet connection

Some miner setups have the option to use wifi. It is advisable to use a wired connection where available. This will provide a more stable connection and ensure you are submitting the expected amount of shares which is directly related to your payouts.

Please note that mining uses a negligible amount of bandwidth, and will not affect your other internet usage.

Information

You can use this information in this post as a good baseline to get you going. In addition to this you will want to research network difficulty; this readjusts every 2016 blocks to maintain a 10 minute block time on average. While this can go down it generally increases.

Solo or Pool?

You can solo mine but this is essentially a lottery even as a large scale miner. Should you chose this you can check this out as a starting point.

solo.ckpool.org 1% fee solo mining USA/DE 250 blocks solved!

Odds are most of you will join a pool. I will only say that it is in your best interest to mine at a pool that pays transaction fees (miner rewards). Then you will want to consider the fees associated with the pool.

When it comes to these pools you want them to be large enough that they are getting at least 1 block every Difficulty adjustment period. Larger pools will offer smaller rewards paid out more frequently, and vice versa.





Best Pool Rules






Best Pool Rules

In my opinion, more or less in order:

1)  Lowest fees

1a)  Shares transaction fees

1b)  Any pool that does NOT share transaction fees should be rejected from consideration (which, unfortunately, is most, if not all, Chinese based pools)

2)  Reasonable variance – You need to get paid often enough to be happy. This is a tough one.

Variance is the close cousin to “Luck”.

The luckier a pool is, the more blocks it finds relative to its hashing speed, and the less variance it will have.  But its not a real thing!  “Luck” could change any microsecond.
 “Luck” is just mathematical statistics – over a long enough time period, all pools will average out to 100% luck.


Luck Statistik for 14 Blocks

You need to understand Variance:

A big pool finds more blocks, but distributes the earnings out to more miners.  

A small pool is just the reverse:  it finds fewer blocks, but pays those earnings to fewer people. Over the long run, Rule #1, well, rules.

3)  Wind-up/Wind-down time – Most pools use some leveling algorithm.

4)  User Interface – That doesn’t matter much if you have a few miners.  If you have hundreds, the difference can be thousands of dollars a Year.

Notes:

A) In the long run #2 & #3 really don’t matter much.  Both pools show your hashing rate in minutes, payouts just lag on Kano compared to Slushpool, but would continue longer if you changed in the future

B) Bigger is not better.  Sure Antpool is #1 in size, in no small part to Bitmain using their own pool (no fees for them!).   Your profit will be determined mostly by rule #1 – lower fees mean more profit.

C) More, smaller, pools is healthier for the blockchain.  If you can live with the variance, support the pool with the longest average payout you are happy with.

D) For pools with long ramp up times that are relatively small, like Kano, you MIGHT suffer due to difficulty changes while you ramp up.

For smaller pools, make sure you understand what happens to your efforts (based on their scoring system) when a difficulty change occurs.






The Laws are Unjust

As we’ve seen over the many years that this rag has been written (and beyond) companies who are able to fund whole teams dedicated to data security have been wholly ineffective at storing that data safely.

With the passage of this new law EU officials are actively putting citizens in harm’s way by irresponsibly trying to force bitcoin users to collect and store each other’s data. This is if you believe that is the actual intention behind this move.

In reality, this move likely serves as a pure intimidation tactic to coerce people to use trusted third parties when transacting with bitcoin.

A heavy handed shove into easily controlled vectors. If too many users are in control of their own private keys, run their own nodes, and are up to date on best privacy practices when transacting it is much harder to stop bitcoin.

And make no mistake, these people want to stop bitcoin at all costs.

They do not want you to be free.

They are quickly losing their grasp of control on the populace and they are moving as quickly as possible to clamp down in an attempt to retain control.

You are not meant to have privacy in their eyes. You are inherently a criminal in their eyes. These people think you are disgusting cattle who needs to be led at every turn.

It does not have to be this way. You do not have to succumb to the madness of these people. All it takes are a few decisions.


Speak up!

Act!

Disobey!


There is a silent majority out there who knows this type of attempted control is inherently wrong.


It is anti-human!

It is evil!


This silent majority needs to begin developing the courage to speak up.

Call out the abject insanity of allowing unelected institutions like the Financial Action Task Force write freedom restricting guidelines that get adopted by governments like the EU.

Learn how to run your own node, how to produce your own private/public key pairs, and how to destroy chain analysis heuristics with privacy best practices.


Make the tyrant’s job as hard as possible!

Disobey!


Stand up and defend freedom in the Digital Age by actively defying their unjust laws.


“If a law is unjust, a man is not only right to disobey it, he obligated to do so.”


It is your duty as an individual to disobey these incredibly invasive and tyrannical “laws”.

If you don’t disobey your progeny may not have the opportunity to. The time to counter punch is right now. Get on it.


Source: https://tftc.io/








The monetary properties of Bitcoin


bitcoin vs gold

bitcoin vs fiat

Bitcoin is a monetary good — a new form of money. As Bitcoin is a money, it must be compared to other monies to consider the comparative advantages of Bitcoin and from that consider further the probabilities of Bitcoin winning ground or not in the competition between monies.

Brief summarization of the monetary properties

Summarization of the monetary properties of Bitcoin compared to precious metals and fiat currencies

As the exhibit above showcases, Bitcoin offers many different distinct and compelling competitive advantages to the alternatives.

These include, but are not limited to:

1. Bitcoin is the first asset in the human history to provide any holder a very sure case of unseizability and censorship- and judgment-resistance for their funds.

Unseizability: With precious metals and fiat currencies, the custodianship is mostly in the hands of trusted custodians that is subject to any intervention by a government or authority.

Bitcoin, with self-custody being orders of magnitude easier than with precious metals and fiat currencies, and access to the corresponding private key of funds being the sole way to access and move funds, no one can seize your bitcoins.

Censorship- and judgment resistance: With precious metals and fiat currencies, the payment clearing for small value transactions can with not much hassle be somewhat censorship resistant if the involved parties are willing to transact in the physical units of precious metals and fiat currencies and to self-custody the funds going forward.

However, with non-small value transactions it is exceedingly inconvenient and costly for transactions of precious metals and fiat currencies to happen in the offline, with physical units and self-custody going forward, leaving the centralized intermediaries as the only option and these are subject to any intervention by a government or authority.

Bitcoin, with the payment clearing involving no centralized intermediaries but instead a decentralized and distributed setup requiring no AML/KYC, the result is that of a the payment clearing process being permissionless, allowing anyone with cryptographic access to funds to move them at their will.

2. Bitcoin provides an inherently apolitical global monetary unit. It is truly border-less, with no recognition of any jurisdictional rules and laws, allowing the jurisdiction of a counterpart in any transaction to be of no relevance.

◦ Fiat currencies are highly political and precious metals are less political than fiat currencies, but still much more political than Bitcoin.

◦ Bitcoin is truly border-less: any bitcoin funds can be accessed anywhere on the planet by having access to information that can even be stored inside a human brain and reliably retrieved at small effort — and, crucially, with no intermediary and no permission required the bitcoin funds can be moved to anywhere in the world with final settlement in the next block.

3. Bitcoin provides scarcity and salability through time characteristics vastly superior to any other monetary options, including fiat currencies and precious metals.

◦ The non-discretionary monetary policy of the bitcoin networking allowing for the asymptotic money supply* of 21 million BTC is built into the literal definition of the protocol. This is a drastic contrast to the arbitrary scarcity of fiat currencies governed by politics.

The scarcity of precious metals is much better than fiat currencies, but Bitcoin with the strictly fixed money supply outperforms any precious metal.

Bitcoin provides any holder a reassurance stronger than any other asset in the world that their ownership stake in the total quantity of Bitcoin on the market will never diluted.

One BTC of 21 million will always be one BTC of 21 million.

◦ Bitcoins are infinitely durable, impossible to counterfeit or dilute, can be stored at no cost and at no degradation.


* By inventing Bitcoin, Satoshi Nakamoto created the first example of a digital good (in this case, monetary good) that is impossible to reproduce ad infinitum, thereby creating the first instance of human history of digital scarcity.

Less talked about it, but perhaps more important, Satoshi Nakamoto with Bitcoin also created the first example of a good being absolute scarce.

Previously, any consideration of scarcity of a good was relative. Any physical good is never absolutely scarce, onlyrelatively scarce when compared to other goods — simply because any limit on a physical goods is a function of the time and human effort put towards producing the good.

Bitcoin, with the asymptotic monetary supply built into the protocol, is therefore the first example of absolute scarcity in a liquid commodity and good that cannot have its fixed quantity of supply increased.


People’s Money

Power to the People

The seed has been planted
Make it Thrive !!!

Choose

Veritas non Auctoritas …

Choose Wisely




Trilemma of International Finance

Trilemma of International Finance

The relative value of any two curren-
cies—the exchange rate—is determined
through their sale and purchase on the global foreign exchange market. If government policy interferes with this market by changing the relative supply or demand of currencies, the exchange rate is managed.

The trilemma of international finance, is a restriction on government policy that follows immediately from the interaction of exchange rates, monetary policy and international capital flows.


Trilemma of International Finance

The trilemma states that any country can have only two of the following:

  • (1) Unrestricted international capital markets.
  • (2) A managed exchange rate.
  • (3) An independent monetary policy.

If the government wants a managed exchange rate but does not want to interfere
with international capital flows, it must use
monetary policy to accommodate changes
in the demand for its currency in order to
stabilize the exchange rate.

In the extreme, this would take the form of a currency board arrangement, where the domestic currency is fully backed by a foreign currency (as in the case of Hong Kong).

In such a situation, monetary policy can no longer be used for domestic purposes (it is no longer independent).

If a country wishes to maintain control over monetary policy to reduce domestic unemployment or inflation, for example, it must limit trades of its currency in the international capital market (it no longer has free international capital markets).

A country that chooses to have both unrestricted inter-national capital flows and an independent monetary policy can no longer influence its exchange rate and, therefore, cannot have a managed exchange rate.



Pieters and Vivanco (2016), government
attempts to regulate the globally accessible
bitcoin markets are generally unsuccessful,
and, as shown in Pieters (2016), bitcoin exchange rates tend to reflect the
market, not official exchange rates.

Should the flows allowed by bitcoin become big enough, all countries will have, by default, unrestricted international capital markets.

Thus, with bitcoin, (1) unrestricted
international capital markets is chosen by
default.

Therefore, the only remaining policy choice is between (2) managed exchange rates or (3) independent monetary policy.

If the country chooses (1) and (2), it must use reactive monetary policy to achieve the managed exchange rate.

If the country chooses (1) and (3), it must have a floating exchange rate because it has no remaining tools with which to maintain a managed exchange rate.

Ali et al. (2014), the European Central
Bank (2015) and the Bank for International
Settlements (2015) all concur that cryptocur-
rencies may eventually undermine monetary policy.





With 💚

ASICs vs. SuperComputers

Asics
SuperComputers

ASICs vs Supercomputers


Assigning the most powerful supercomputer to mine bitcoin would be comparable to hiring a grandmaster chess player to move a pile of bricks by hand.

The job would get done eventually but the chess player is much better at thinking and playing chess than exerting energy to repetitively move bricks. 

Likewise, combining the computing power of the most powerful supercomputers in the world and using them to mine bitcoin would essentially be pointless when compared to the ASIC machines used today.

ASICs are designed to do one thing as quickly and efficiently as possible, whereas a supercomputer is designed to do complicated tasks or math problems.

Since Bitcoin mining is a lottery based on random trial and error rather than complex math, specialization (ASICs) beats general excellence (supercomputers) everytime.


End of Lesson !!!



Made with 💚 by Free Spirit

✌ & 💚



With 💚

P.O.W In Human History


Proof Of Work

in the

History of Humankind


Great Pyramid of Giza (a.k.a)
Pyramid of Khu
Egypt

The Great Pyramid of Giza (also known as the Pyramid of Khufu or the Pyramid of Cheops) is the oldest and largest of the  pyramids in the Giza pyramid complex  bordering present-day Giza  in Greater Cairo, Egypt.

It is the oldest of the Seven Wonders of the Ancient World, and the only one to remain largely intact.

Egyptologists conclude that the pyramid was built as a tomb for the Fourth Dynasty  Egyptian pharaoh Khufu and estimate that it was built in the 26th century BC during a period of around 27 years.

Initially standing at 146.5 metres (481 feet), the Great Pyramid was the tallest man-made structure in the world for more than 3,800 years.

Over time, most of the smooth white limestone casing was removed, which lowered the pyramid’s height to the present 138.5 metres (454.4 ft).

What is seen today is the underlying core structure. The base was measured to be about 230.3 metres (755.6 ft) square, giving a volume of roughly 2.6 million cubic metres (92 million cubic feet), which includes an internal hillock.

The dimensions of the pyramid were 280 royal cubits (146.7 m; 481.4 ft) high, a base length of 440 cubits (230.6 m; 756.4 ft), with a seked of 5+1/2 palms (a slope of 51°50’40”).

The Great Pyramid was built by quarrying an estimated 2.3 million large blocks weighing 6 million tonnes total.

The majority of stones are not uniform in size or shape and are only roughly dressed.The outside layers were bound together by mortar.

Primarily local limestone from the Giza Plateau was used. Other blocks were imported by boat down the Nile: White limestone from Tura for the casing, and granite blocks from Aswan, weighing up to 80 tonnes, for the King’s Chamber structure.

There are three known chambers inside the Great Pyramid. The lowest was cut into the bedrock, upon which the pyramid was built, but remained unfinished. The so-called Queen’s Chamber and King’s Chamber, that contains a granite sarcophagus, are higher up, within the pyramid structure. Khufu’s vizier, Hemiunu (also called Hemon), is believed by some to be the architect of the Great Pyramid.

Many varying scientific and alternative hypotheses attempt to explain the exact construction techniques.

The funerary complex around the pyramid consisted of two mortuary temples  connected by a causeway (one close to the pyramid and one near the Nile), tombs for the immediate family and court of Khufu, including three smaller pyramids for Khufu’s wives, an even smaller “satellite pyramid” and five buried solar barges.


Flavian Amphitheatre
a.k.a Colloseum
Rome – Italy

The Colosseum (Colosseo[kolosˈsɛːo]) is an oval amphitheatre in the centre of the city of Rome, Italy, just east of the Roman Forum.

It is the largest ancient amphitheatre ever built, and is still the largest standing amphitheatre in the world today, despite its age.

Construction began under the emperor Vespasian (r. 69–79 AD) in 72 and was completed in 80 AD under his successor and heir, Titus (r. 79–81).

Further modifications were made during the reign of Domitian (r. 81–96).

The three emperors that were patrons of the work are known as the Flavian dynasty, and the amphitheatre was named the Flavian Amphitheatre (Latin: Amphitheatrum Flavium; Italian: Anfiteatro Flavio[aɱfiteˈaːtro ˈflaːvjo]) by later classicists and  archaeologists for its association with their family name (Flavius).

The Colosseum is built of travertine limestone, tuff (volcanic rock), and brick-faced concrete.

The Colosseum could hold an estimated 50,000 to 80,000 spectators at various points in its history  having an average audience of some 65,000; it was used for gladiatorial  contests and  public spectacles including  animal hunts, executions, re-enactments of famous battles, and dramas based on Roman mythology, and briefly mock sea battles.

The building ceased to be used for entertainment in the early medieval era.

It was later reused for such purposes as housing, workshops, quarters for a religious order, a fortress, a quarry, and a Christian shrine.

Although substantially ruined because of earthquakes and stone-robbers (for spolia), the Colosseum is still an iconic symbol of Imperial Rome and was listed as one of the New 7 Wonders of the World.

It is one of Rome’s most popular tourist attractions and also has links to the Roman Catholic Church, as each Good Friday  the Pope leads a torchlit “Way of the Cross” procession that starts in the area around the Colosseum.

The Colosseum is also depicted on the Italian version of the five-cent euro coin.


The Ming dynasty
Great Wall
at Jinshanling

The Great Wall of China (traditional Chinese: 萬里長城; simplified Chinese: 万里长城; pinyinWànlǐ Chángchéng) is a series of fortifications that were built across the historical northern borders of ancient Chinese states and Imperial China as protection against various nomadic groups from the Eurasian Steppe.

Several walls were built from as early as the 7th century BC,with selective stretches later joined together by Qin Shi Huang  (220–206 BC), the first emperor of China.

Little of the Qin wall remains. Later on, many successive dynasties built and maintained multiple stretches of border walls. The best-known sections of the wall were built by the Ming dynasty (1368–1644).

Apart from defense, other purposes of the Great Wall have included border controls, allowing the imposition of duties on goods transported along the Silk Road, regulation or encouragement of trade and the control of immigration and emigration.

Furthermore, the defensive characteristics of the Great Wall were enhanced by the construction of watchtowers, troop barracks, garrison stations, signaling capabilities through the means of smoke or fire, and the fact that the path of the Great Wall also served as a transportation corridor.

The frontier walls built by different dynasties have multiple courses. Collectively, they stretch from Liaodong in the east to Lop Lake in the west, from the present-day Sino–Russian border in the north to Tao River (Taohe) in the south; along an arc that roughly delineates the edge of the Mongolian steppe; spanning 21,196.18 km (13,170.70 mi) in total.

Today, the defensive system of the Great Wall is generally recognized as one of the most impressive architectural feats in history.


As history has left behind, monumental architectural constructions that we can admire and reamain in awe as we look at them, after thousands of years since the first stone was put, in today’s world our digital PoW can be seen and admired the same as the Great Wall of China or the Piramid of Giza !!!

Wich brings us to the question, what is Free talking about ?!?


Long Live the CypherPunks

CypherPunks Write Code

Genesis

Bitcoin Genesis Block
Mined 03 January 2009

The Times
January 3, 2009

Bitcoin – Proof Of Work


Bitcoin-type Proof Of Work


In 2009, the Bitcoin network went online. Bitcoin is a proof-of-work digital currency that, like Finney’s RPoW, is also based on the Hashcash PoW.

But in Bitcoin, double-spend protection is provided by a decentralized P2P protocol for tracking transfers of coins, rather than the hardware trusted computing function used by RPoW.

Bitcoin has better trustworthiness because it is protected by computation. Bitcoins are “mined” using the Hashcash proof-of-work function by individual miners and verified by the decentralized nodes in the P2P bitcoin network.

The difficulty is periodically adjusted to keep the block time around a target time.

Since the creation of Bitcoin, proof-of-work has been the predominant design of peer-to-peer cryptocurrency. Studies have estimated the total energy consumption of cryptocurrency mining.

The PoW mechanism requires a vast amount of computing resources, which consume a significant amount of electricity. Recent estimates from the University of Cambridge put Bitcoin’s energy consumption as equal to that of Switzerland.

History modification

Each block that is added to the blockchain, starting with the block containing a given transaction, is called a confirmation of that transaction.

Ideally, merchants and services that receive payment in the cryptocurrency should wait for at least one confirmation to be distributed over the network, before assuming that the payment was done.

The more confirmations that the merchant waits for, the more difficult it is for an attacker to successfully reverse the transaction in a blockchain—unless the attacker controls more than half the total network power, in which case it is called a 51% attack.

2ASICs and mining pools

Within the Bitcoin community there are groups working together in mining pools.

Some miners use application-specific integrated circuits (ASICs) for PoW. This trend toward mining pools and specialized ASICs has made mining some cryptocurrencies economically infeasible for most players without access to the latest ASICs, nearby sources of inexpensive energy, or other special advantages.

Some PoWs claim to be ASIC-resistant,  i.e. to limit the efficiency gain that an ASIC can have over commodity hardware, like a GPU, to be well under an order of magnitude.

ASIC resistance has the advantage of keeping mining economically feasible on commodity hardware, but also contributes to the corresponding risk that an attacker can briefly rent access to a large amount of unspecialized commodity processing power to launch a 51% attack against a cryptocurrency.


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