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2321  Bitcoin / Bitcoin Discussion / Re: Hi My name is Ares, I am doing an educational video about "private key" on: August 11, 2019, 08:11:56 AM
I think you are spending too much time talking about private keys. Bitcoin users never encounter private keys. They only encounter addresses, seed phrases, and passwords.

These corrections and clarifications might be helpful.

A "seed phrase" or "recovery phrase" or "mnemonic phrase" is used by the wallet to generate all of the private keys managed by the wallet. Most wallets will generate a new private key every time bitcoins are received, so it is generally a mistake to ever associate a wallet with a single private key (the exception is a paper wallet).

If you have an "HD" wallet (the kind with a seed phrase), then you don't have to protect "your private key". The private keys generated by the wallet are generally not stored by the wallet. They are simply generated as needed from the seed phrase. Instead, you need to protect your seed phrase.

A seed phrase is not equivalent to a private key. It is not generated from a private key.

A bitcoin address is not an account number. It is better to think of a wallet as an account and an address as a payment ID.


This explanation of terms might also help:

I thought I would list some important terms and clear up some common confusion:


  • Address: Bitcoins are sent to an address. An address is derived from its public key. It is not a public key or a wallet.
  • Private Key: Used to control the bitcoins at an address. A private key is not a password or a seed.
  • Public Key: A public key is used in a transaction. It is rarely seen, except  in a transaction. A public key is derived from its private key. It is not an address.
  • Wallet: A wallet contains and controls private keys and their associated addresses. A wallet is not an address. A wallet typically uses a seed phrase to generate its private keys.
  • Seed/Mnemonic/Recovery Phrase: Used by a wallet to generate private keys and their associated addresses. A seed phrase is not a passphrase or a private key. A seed phrase is also known as a recovery phrase because all of a wallet's private keys and associated addresses are derived from it.
  • Passphrase/password: A passphrase is used to encrypt a wallet, private key, or seed phrase. A passphrase is not a private key or a seed phrase. However, sometimes a seed phrase will contain an extra word that is used like a passphrase.

Here are sets of terms that are frequently confused with each other:

  • Public key <==> Address
  • Address <==> Wallet
  • Private key <==> Seed/Mnemonic/Recovery Phrase <==> Passphrase

Terms that should be avoided because they are ambiguous or are probably being used incorrectly:

  • Wallet address: There is no such thing as the address of a wallet. As stated above, a wallet contains private keys and their associated addresses.
  • Public address: Use of this term typically indicates a confusion between the terms "address" and "public key". All addresses are public.
  • Public Key: Typically, this term is mistakenly used in place of "address".
2322  Economy / Trading Discussion / Re: What is MACD(Moving Average Convergence Divergence)? How to use it? on: August 10, 2019, 08:42:50 PM
The article is deceptive. The author is selling you snake oil.

Take a look at the second negative crossing circled on the graph. The author wants you to believe that it predicted the long drop that followed. However, notice that the marked crossing was immediately preceded by a positive signal, which the author overlooked because it doesn't support his claims. A person actually following the MACD then would have bought at the top and proceeded to to lose a ton of money.

Also, look at the MACD at the end of the second red period. Again, there is a positive crossing that immediately precedes a swift decline.

The author is cherry-picking the results. If you look at all of the crossings, you will see that half predict the price movement correctly and half predict it incorrectly. In other words, the MACD is no better than flipping a coin.

The Myth of the MACD

The MACD is flawed indicator. If you look at the math behind it, you will see that it provides signals that are nothing more than noise. Simply stated, the flaw results from comparing two lagging indicators whose phases are shifted by different amounts. Furthermore, correcting the shifts results in predictions of the past, and not the future.

What is a Moving Average?

In simplest terms, a moving average (MA) is a "low-pass" filter. It is used to highlight longer trends by removing higher frequency changes. For example, a 12-day moving average smooths out changes that happen more frequently than once every 12 days and keeps changes that happen over periods longer than 12 days. The quality of a moving average as a low-pass filter is mediocre, but it is effective and frequently used because it is so easy to compute.

Moving Averages are Lagging Indicators

If you have ever looked at price graphs with moving averages (MA, SMA, EMA, etc.), you have probably noticed that the averages are shifted when compared to the data. A 12-period MA is shifted by 6 periods and a 26-period MA by 13 periods. If you shift the averages back by that amount of time, you will see that they line up perfectly with the data, as they should, but they will also be that many periods out-of-date. In other words, the 12-period MA and 26-period moving averages calculated now don't tell you what is happening now, they tell you what was happening 6 and 13 periods ago. Moving averages are lagging indicators. They tell you what happened in the past. The shift is done simply for convenience, but it results in the misconception that the value computed now represents the current state when it does not.

What is a MACD?

A MACD is simply the difference between two moving averages with different periods. The result is a "band-pass" filter. For example, subtracting a 26-day MA from a 12-day MA removes the changes that happen over periods longer than 26 days, leaving only changes that happen over periods between 12 and 26 days.

The MACD is flawed

The basic flaw of the MACD is that the two moving averages used by the MACD are shifted by different amounts (6 periods for a 12-period MA and 13 periods for a 26-period MA), and the unequal shifts result in a distortion that creates spurious signals and hides actual signals. Furthermore, if you correct the shifts, the moving averages go out-of-date, making the result of the MACD obsolete by the time it is computed.
2323  Economy / Speculation / Re: Bitcoin Breaks $12,000 Before Plunging, Crypto Markets Turn Downward on: August 08, 2019, 01:47:05 AM
Typical CoinTelegraph clickbait.

Dropping from $12k to $11.6k is not "plunging".
2324  Other / Off-topic / Re: Flat Earth on: August 08, 2019, 12:58:12 AM
@notbatman, @exemplaar, et.al,

What do you think of this?

Saildrone is first to circumnavigate Antarctica, in search for carbon dioxide

It was an audacious idea: To send an unmanned saildrone on a 13,670-nautical-mile journey around Antarctica alone, ...
...
The 196-day voyage was the world's first autonomous circumnavigation of Antarctica—a technological feat that was unfathomable just a decade ago.

I imagine you will say it is a fabrication because not only is the distance around the edge more like 32,000 nm, but there is no way that a small sailboat could go 32,000 nm distance in only 196 days.

2325  Other / Serious discussion / Re: The big bang theory is a joke/Earth weight distribution on: August 07, 2019, 08:19:51 AM
... invert Max Planck`s shortest measurement of light, now you have the longest measurable distance of light 10^22 light years. ...

You have written that a few times. What does it mean to "invert Max Planck`s shortest measurement of light"? I assume you are referring to a Planck length, 1.6x10-35 m. If you invert that value, you get 6.19x1034 m-1, which is not 1022 light-years. It's not even a distance value because the units are inverted, too.

It is 10 to the power of 22 light years brother, That is the longest measurable distance of light, when you invert the shortest. 

You didn't answer my question. How about showing some math? You can't invert a distance without inverting the units, and then it is no longer a distance.

Also, if you have a distance of 1 mm and you "invert" it, you get 1, right? But if you have the same distance of 10-3 meters and you "invert" that, you get 1000. The results are different even though they are the same distance. Can you explain how your inversion is done?
2326  Other / Serious discussion / Re: The big bang theory is a joke/Earth weight distribution on: August 06, 2019, 07:56:27 AM
... invert Max Planck`s shortest measurement of light, now you have the longest measurable distance of light 10^22 light years. ...

You have written that a few times. What does it mean to "invert Max Planck`s shortest measurement of light"? I assume you are referring to a Planck length, 1.6x10-35 m. If you invert that value, you get 6.19x1034 m-1, which is not 1022 light-years. It's not even a distance value because the units are inverted, too.
2327  Other / Off-topic / Re: Flat Earth on: August 04, 2019, 05:55:58 AM
^^^ Do you honestly think that's a real photograph? Alarm bells should be going off looking at that...

You can see where the layer the stars are on is, the background noise highlighted by the ELA is inconsistent. I tried analyzing the full size jpeg images but they've fixed them so the analysis is useless. However the frame from the animation still has enough information to show it's a fraudulent composite image.

Real or not, you can't use ELA on that image because it is not a JPEG.

What do you mean "they've fixed them"? Are you saying that your analysis of the JPEGs shows that they have not been manipulated?
2328  Economy / Economics / Re: Over 100,000,000,000 In Volume on: August 04, 2019, 02:08:17 AM
Keep in mind that 99% of that volume is fake (as a rule of thumb).

BTW, here are the sources. The first reports 88% as fake and the second reports 95% as fake. I'll admit that 99% is an exaggeration, but I like to play it safe.

https://medium.com/crypto-integrity/fake-volumes-in-cryptocurrency-markets-february-report-fec9329f1f98
https://www.sec.gov/comments/sr-nysearca-2019-01/srnysearca201901-5164833-183434.pdf

This is also a good read: https://hedgetrade.com/bitwise-exchange-report-raises-questions/
2329  Other / Off-topic / Re: Flat Earth on: August 04, 2019, 01:03:23 AM

Unfortunately, ELA is designed for JPEG images and the one you analyzed is a PNG, so I don't think any interpretation of the results is valid.

ELA highlights differences in the JPEG compression rate. ...
2330  Other / Off-topic / Re: We may have just narrowly escaped extinction yesterday! on: July 27, 2019, 07:26:36 AM
God is awesome and powerful, though very merciful to this earth. He has all the tools in his hand that he can used to wipeout this planet Earth but he decided not to do that because of his mercy and that is a warning that the end is not always far and we need to be careful with the way we live on earth. God have mercy on us and may he help us to repent from all our sins.

1. Why would God need tools to destroy us?
2. Why do we beg for God's mercy? Imagine your children begging you not to kill them. What does that say?
3. Why would God help us to repent. It seems like if God intervenes, he is ruining is own test.

BTW, I know that is all coded language so I apologize for taking it literally.
2331  Other / Off-topic / Re: We may have just narrowly escaped extinction yesterday! on: July 27, 2019, 06:48:13 AM
Simply shows that God could have killed us all off if He had wanted to. So, trust in Him for salvation.

I think it is odd that if God wanted to eliminate us, he would do it with an asteroid (or a flood). It seems unnecessary and overly dramatic. And what does an asteroid have to do with trust or salvation?
2332  Other / Off-topic / Re: GitHub is shitty, why not a decentralized solution? on: July 27, 2019, 05:59:37 AM
I've just received this e-mail from Github:

Quote
GitHub <noreply@github.com>

to me
Due to U.S. trade controls law restrictions, your GitHub account has been restricted.
For individual accounts, you may have limited access to free GitHub public repository
services for personal communications only. Please read about GitHub and Trade Controls at
https://help.github.com/articles/github-and-trade-controls for more information
So, people of Iran(like me), Cuba, Syria, North Korea and Crimea (200 millions?) are subject to US Trade Controls as a whole and they can't use GitHub accordingly  Grin

Any comments?


Git is decentralized as much as that while you may not be able to directly access a repo on Github, you can still access someone's clone of it.
2333  Bitcoin / Development & Technical Discussion / Re: Changing Bitcoin subsidy algorithm on: July 26, 2019, 07:15:53 AM
Think about it. What if the value of BTC do not double? Then the mining will not be profitable, all the mining gears will lost profitability, all the miners will switch to another currency. This will trigger a domino effect and in March 2020 all who have Bitcoins will cry because money will flow out of Bitcoin to something else.
Now you may say that if many stop mining Bitcoin, then the difficulty will readjust.

That sounds like FUD to me. I say "FUD" because I don't believe you have anything to back up your claims.

Can you explain how you arrived at the conclusion that Bitcoin will collapse if the price doesn't double?

Quote
What if the value of BTC do not double? Then the mining will not be profitable,
People were mining profitably when the price was 1/100 of what it is now. Profitability does not require the price to double.

Quote
... all the mining gears will lost profitability...
No. Even if the price drops, some miners will still be profitable.

Quote
... all the miners will switch to another currency. ...
No. Even if the price drops, then some miners will continue mining because it is still profitable.

Quote
This will trigger a domino effect and in March 2020 all who have Bitcoins will cry because money will flow out of Bitcoin to something else.

That's crazy talk. There is no basis for those statements. What happens in March?

Quote
Now you may say that if many stop mining Bitcoin, then the difficulty will readjust.

Yes. That is why nothing else that you wrote is true.

2334  Other / Off-topic / Re: Flat Earth on: July 25, 2019, 08:51:43 AM
Here's the real deal:

   The International Flat Earth Research Society -- http://ifers.123.st/


Honestly, the problem with that site is that it is 90% Eric Dubay, whose flat earth beliefs seem to be derived primarily from his spiritual beliefs, and who seems to attack anyone that tries to apply scientific methods.
2335  Economy / Economics / Re: IS THIS HOW USD IS CREATED? on: July 25, 2019, 08:41:05 AM
It is a very common and widespread misconception to think that banks are somehow limited by the deposits that they have received (what fractional reserve is essentially about).

So you are saying that this is a misconception: 12 CFR Part 204 - RESERVE REQUIREMENTS OF DEPOSITORY INSTITUTIONS (REGULATION D)

It is basically a test on how well you (not necessarily you personally, of course) understand what FRB refers to and is essentially about. Simply put, FRB says that banks can create credit only out of deposits that they have received (using a multiplier, hence fractional), but this is not how the modern banking system works, end of story

I didn't read this regulation (so bear with me) but I guess these requirements demand that a bank should keep some cash in its vaults in case borrowers want to take cash. But that in itself doesn't change anything in the process described above (deposits via credit and not the other way around). The word reserves, or even reserve requirements, doesn't make it fractional reserve banking

And in Canada, for example, there are no reserve requirements (if I'm not mistaken)
You are correct. Canada removed their reserve requirements in 1992; however, lending is still restricted by capital requirements. I am skeptical of your statements because you seem to be unaware of the details.
2336  Other / Beginners & Help / Re: Relationship between utxo and tx fee on: July 25, 2019, 12:05:07 AM
When you spend bitcoins, the transaction references only their UTXOs. Their addresses are not included in the transaction.
2337  Economy / Economics / Re: IS THIS HOW USD IS CREATED? on: July 24, 2019, 11:57:53 PM
It's called fractional reserve and has been happening for years since we ever departed from a gold standard. Welcome to the post Nixon era

Fractional reserve banking existed under the gold standard. There were many bank runs and financial panics in the U.S. when the dollar was fixed at $20/oz. That was the reason for creating the Federal Reserve.

BTW, I believe that we will see fractional reserve banking with Bitcoin, too. And, that is why I don't think a bitcoin will ever be worth $1 million.

It is a very common and widespread misconception to think that banks are somehow limited by the deposits that they have received (what fractional reserve is essentially about).

So you are saying that this is a misconception: 12 CFR Part 204 - RESERVE REQUIREMENTS OF DEPOSITORY INSTITUTIONS (REGULATION D)
2338  Economy / Economics / Re: Over 100,000,000,000 In Volume on: July 24, 2019, 11:35:45 PM
Keep in mind that 99% of that volume is fake (as a rule of thumb).
2339  Bitcoin / Press / Re: 2019-07-23 Fox Business - BAC CEO, Anonymous Crypto Currencies are not good on: July 24, 2019, 11:31:15 PM
The ability to monitor their customers, whether it is for their own benefit or as an agent of a government, is extremely valuable to a bank. They will fight anything that reduces that value, such as the ability to transact anonymously.
2340  Bitcoin / Development & Technical Discussion / Re: Why the economical part isn't mentioned on the whitepaper? on: July 24, 2019, 10:26:10 PM
In the White Paper , Satoshi assumed the mining market would stay open.
Error 1: ASICS closed the mining market to the rich elite only.

You don't have to be a "rich elite" to mine. You just need access to cheap electricity. Also, though it was not addressed in the whitepaper, Satoshi had predicted miner consolidation.

Error 2: Nodes processing transactions for free are in short supply, if any.
Of course this is due to the energy waste, making free transactions impracticable.

It was never assumed that transactions would be free. The whitepaper mentions fees as an integral part of the system.

Error 3: Transaction fees alone will not be able to maintain Bitcoin insane energy waste.

You are assuming that an "insane" level of energy consumption is required for security. It is not.

Quote
On the Instability of Bitcoin Without the Block Reward

I have read that paper. It makes some interesting points, but it is far from conclusive.
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