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1881  Bitcoin / Bitcoin Discussion / Re: Oldest scam in the book can help you make money on: July 16, 2020, 07:27:44 PM
... so in my opinion they should not receive sympathy because they are pathetic and gullible ...

Every person, including you, is pathetic and gullible to some degree. Why do you draw a line that decides who deserves sympathy and who doesn't, and why should anyone care where you draw that line? Everyone deserves some amount of sympathy. Where I'm from, we call someone with no sympathy "asshole".
1882  Other / Serious discussion / Re: Suggest a book... on: July 14, 2020, 08:31:46 AM
My favorite novels:

Lolita by Vladimir Nabokov
Nabakov is Russian, but his command of the English language is better than most native speakers.

Invisible Man by Ralph Ellison
The African-American experience in the U.S. aggregated into the life of a single person.

Deliverance by James Dickey
Better than the movie.

Catch-22 by Joseph Heller
A WWII American bomber pilot wants to go home but he can't. Funny and sad at the same time

Also, any short stories by Ray Bradbury, most notably The Martian Chronicles.
1883  Other / Beginners & Help / Re: Mnemonic phrase generation on: July 14, 2020, 08:16:34 AM
...
If SHA256 hash function is used, 256 bits will be produced, this is called the entropy and will be produced in hexadecimal. An example is the use of SHA256 generator.

https://passwordsgenerator.net/sha256-hash-generator/

Let us assume this entropy generated using SHA256 hash function is:
B1B826D5946769D7985A0059A294CEA2FEB47AEC28B94D0EAB2E08F4357F3A5D


Sorry for being pedantic, but SHA-256 doesn't generate entropy. Entropy is generated from a random source.

Using a SHA-256 hash of a passphrase as a seed is a very bad idea and there is a good possibility that it will result in the loss of your bitcoins.
1884  Other / Beginners & Help / Re: Tell me a reason why I should use online wallet. on: July 14, 2020, 08:01:07 AM
I was having an argument with one guy from the internet. He uses online wallet instead of an offline. I tell him that bitcoin loses its point if you use an online wallet. He's also trying to convince me to use it too because it's more simple than an offline. I doubt. Anyway, I want one, only one reason, that online wallets are better than the offline ones.

The fact that millions of people use blockchain.com pisses me off. I don't know if the majority of users choose online, but they are many for sure.

Different people have different values and different priorities. If someone wants to use a custodial wallet because it is more convenient, then that decision is up to them. You can tell them about all the drawbacks, but maybe convenience is more important to them.

BTW, the terms "offline" and "online" are confusing because every wallet that is connected to the internet is "online". Also, I suspect that you don't know how the blockchain.com wallet works, and if you did, you wouldn't be so pissed off at people using it.
1885  Bitcoin / Development & Technical Discussion / Re: Do invalid keys in BIP44 path matter? on: July 13, 2020, 09:32:32 PM
I understand not all private keys 256-bit numbers are usable as private keys as they fall outside of Secp256k1 ...

FTFY

According to BIP-32, which is really what you are asking about:

In case parse256(IL) ≥ n or ki = 0, the resulting key is invalid, and one should proceed with the next value for i. (Note: this has probability lower than 1 in 2127 .)
1886  Bitcoin / Development & Technical Discussion / Re: I get exactly 21.000.000 coins. on: July 13, 2020, 05:51:33 PM
Bitcoin uses integer math here and operates in satoshis and not fractional bitcoins. While the theoretical limit is exactly 21 million, the actual limit is slightly less due to the effects of truncation.

Also, the difference between 33 halvings and 64 halvings is less than 0.01 BTC, though it depends on the implementation (which would be incorrect anyway because the actual difference is 0).

There will be 33 halvings, and not 34 as stated by some. The result of the 33rd halving is a subsidy of 0 satoshis.

Quote
Fun fact, the actual Bitcoin will not go into the full 20.9 million that people estimate
What? why?

The subsidy value is the maximum number of bitcoins that can be created in a block. Some blocks have created less than the maximum, so the total will be less than expected. Also the reward from the genesis block cannot be spent.

Code:
 halving |  block  | year |   reward    |coins in circulation
---------|---------|------|-------------|--------------------
...
     32  | 6720000 | 2136 |  0.00000001 | 20999999.995799996
     33  | 6930000 | 2140 |  0.00000001 | 20999999.997899994
...

Your table has precision errors and also the 33rd halving does not halve the subsidy. The actual supply in the end should be 20999999.97690000 BTC.

Edit: Wrote "reward", meant "subsidy".
1887  Bitcoin / Development & Technical Discussion / Re: From private key to address [Facing problem] on: July 07, 2020, 05:25:21 PM
Hello, I'm trying to make an address from my custom private key, but I need some help.

This is my 64 length private key in hex: c89856dd1b8f867fedfbefaa95c340a086aaaf1b086ffa3772b37540b45912f9

What exactly happens next? Cause I think, I'm not doing it correctly. I want to reach that private key to a p2pkh address.

This page shows all of the steps. though is a out of date: http://gobittest.appspot.com/Address
1888  Bitcoin / Bitcoin Discussion / Re: Can I just delete my wallet and use my 12-word recovery key as my “storage”? on: June 29, 2020, 05:38:59 PM
Obviously if you’re making transactions you need a wallet, but if you’re just hodling, do people just write it down on a piece of paper and put that somewhere safe and call it a day? Would a bitcoin millionaire trust his funds to a scrap of paper and put it in a safety deposit box? I’m just trying to understand options safe storage. Thanks!

None of the replies thus far have answered your questions. The answer to your question is yes. The key to holding bitcoins is the private key, or more generally, the seed that generates the private key. You don't need software to receive or store bitcoins. You only need the address that comes from the private key.

When you create a wallet, you are given a recovery phrase (also called a "seed"). That is what the wallet uses to generate your private keys (and their addresses). You must store the recovery phrase in a secure place so that when your computer dies or the wallet is corrupted, you can still access your bitcoins. You must protect the recovery phrase because it is all that is needed to take your bitcoins, and in your case it is the only way to access your bitcoins.
1889  Alternate cryptocurrencies / Service Discussion (Altcoins) / Re: BitKKTex - Anyone heard of this new exchange? on: June 28, 2020, 07:13:10 PM
It's a scam. No need to check any further.
1890  Other / Serious discussion / Re: The Fat Emperor talks to a leading virologist about herd immunity on: June 27, 2020, 07:39:29 AM
As I see it, the only people that are threatened by this virus are those with weakened immune systems. ie. the vaccinated, the sugar drink consumers, those eating ultra-processed foods, smokers, and recreational and pharmaceutical drug users. Age doesn't really have anything to do with it, provided the person has a healthy diet, gets exercised, stays hydrated, and keeps off the pharmaceuticals that the pharma salesmen ( known as doctors) try to force on them without checking heath histories or lifestyle habits.

Are your statements based on your expertise in immunology, or the peer-reviewed papers that you have read and that you can cite, or just your own speculation and biases?
1891  Bitcoin / Press / Re: [2020-06-23] Bitcoin name and logo patented in Spain on: June 24, 2020, 08:38:36 PM
The title is wrong - it was trademarked, not patented.

At least in the US, you have to specify the area where the trademark applies.  E.g. I could trademark "Apple lawn care" without impacting Apple Inc's trademark for electronics.  I presume it is similar in Spain.

Quote
(translated) Advertising; Business management; Business administration; Clerical services
1892  Bitcoin / Bitcoin Discussion / Re: Couple was forcibly ask by IRS to sell their crypto to pay their liabilities on: June 24, 2020, 08:17:26 PM
There's no denying that the petitioners have money to pay to settled their tax liabilities. But they can't withdraw it in a timely manner, maybe they are waiting for the price to go up and make profit to at least lessen the damage. What are your thoughts on this?

Are you willing to sell your crypto to pay our debts or just go on settle it in months or years?

It seems pretty clear to me that this has little to do with cryptocurrency. They simply are doing whatever they can to avoid paying $1 million dollars to the government. Wouldn't you? They won't win, but at least they tried.
1893  Other / Serious discussion / Re: Scientific Experiment / Participate Now on: June 19, 2020, 12:18:13 AM
I believe they are the same person.  Similar features: eye shape and color, lips, cheekbones, general shape of face, nose, and jaw.
1894  Bitcoin / Development & Technical Discussion / Re: How is the correct time been submitted in mining? on: June 16, 2020, 04:47:31 AM
Okay thank you, I just don't get why difficulty exists since target already exists. Aren't they similar? Very similar?

difficulty = 0x00000000FFFF0000000000000000000000000000000000000000000000000000 / target
1895  Bitcoin / Bitcoin Discussion / Re: wallet.dat is stuck in a .rar file. on: June 16, 2020, 04:36:33 AM
Hi rexxarofmoknathal,I have actually spoken to him and I'll send the .dat to him once I can get it out of the .rar.

For everyone else reading this,THE .RAR IS NOT!!!!!!!!!!!!! ENCRYPTED  for the third time,not to be rude but come on.

Yes, you can encrypt the individual files in a RAR archive without encrypting the entire archive. You need to extract the encrypted file (which may take some work) before trying brute force.

These might help (or not):

https://en.wikipedia.org/wiki/RAR_(file_format)
https://www.rarlab.com/technote.htm
https://hackaday.com/2020/04/11/100k-to-crack-a-bitcoin-wallet/ (for inspiration)
1896  Bitcoin / Bitcoin Discussion / Re: What happens if block chain size gets bigger than available space? on: June 16, 2020, 04:27:37 AM
I was taking a look here: https://bitcoin.org/en/full-node and saw a minimum requirement of 200 GB of space,
but looking here: https://www.blockchain.com/charts/blocks-size I see that block chain size is getting close to 300 GB

what is the minimum free space required? and what happens with the server if the block chain size gets bigger than the free space we have in the server?

I would devote 1 TB to the block chain. That should last for a few years and 1 TB is not all that much any more.

If you run out of space on your node, then it will stop working.
1897  Economy / Service Discussion / Re: Bifince Scam? on: June 14, 2020, 10:13:41 PM
I have sold a source code, and he ask me to create a account there.
That's why I'm checking here before do anything.

If I understand this correctly, you sold software to someone for 16 BTC, and they are telling you to open an account at that site so they can send you the BTC. The person or the site requires you to deposit 0.02 BTC before you can get your money.

If that is correct, then it is almost certainly a scam, including the 16 BTC payment.

What to do:

1. Create an account at a reputable and well-known site or exchange, such as Coinbase, or install a recommended wallet on your computer or mobile.
2. Give the person sending you the BTC a receive address from your wallet or a receive/deposit address from the site.
3. If they object to that or require you to send them money first, or ask you for a private key or seed or login information, then it is all a scam.
4. If they send you the money, then everything is fine.
1898  Economy / Economics / Re: Bitcoin can never become a currency. Part 1: scarce supply. on: June 11, 2020, 07:21:27 AM
Everything you wrote is directly contradicted by historical fact: Gold, which is scarce like Bitcoin, was successfully used as a currency for centuries. The switch from gold to fiat was due not to shortcomings in the currency, but instead the inability of governments to control their spending.
1899  Bitcoin / Bitcoin Discussion / Re: Mycelium Entropy and the best paper wallet generation on: June 07, 2020, 08:55:05 PM
    I own a mycelium entropy and do not have a printer with a USB port to print out the paper wallets.
     Does anyone know how to print out using it on the USB port? I gave tried...but with no luck.
I have one but I haven't used it in a long time. When you plug it into the USB port, it generates an image file of a paper wallet. You just print that. You might have to tell the computer that it is a storage device.
BTW, plugging that device into a printer is absolutely the safest and most convenient way to make a paper wallet.
   The image file does come up...but it looks like the same one all the time
Sorry, I don't know what might be wrong. Here is a copy of the user manual: https://www.mycelium.com/assets/entropy/me.html

1900  Bitcoin / Bitcoin Discussion / Re: Mycelium Entropy and the best paper wallet generation on: June 07, 2020, 06:47:55 PM
    I own a mycelium entropy and do not have a printer with a USB port to print out the paper wallets.
     Does anyone know how to print out using it on the USB port? I gave tried...but with no luck.

I have one but I haven't used it in a long time. When you plug it into the USB port, it generates an image file of a paper wallet. You just print that. You might have to tell the computer that it is a storage device.

BTW, plugging that device into a printer is absolutely the safest and most convenient way to make a paper wallet.
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