They are personalities in the computer science field. Hal Finney and Nick Szabo.
Finney received the first BTC transaction from Satoshi.

From Wikipedia

As a teacher for secondary school, you don't need to go deep in the technical.

The best guy around to talk about bitcoin and blockchain, in my opinion, is andreas antonopoulos.

He is a very good speaker and writer, he can explains how this works very well, in a way anyone can understand

Check his youtube channel

https://www.youtube.com/channel/UCJWCJCWOxBYSi5DhCieLOLQ

Watch his speeches, and tell what you heard to the kids. Some of them will really like it.

I think you should make an introduction. Who the hell is this guy? What is Casa? What did you talk about? Why should I click this link?

I see lots of people here advertising their services here,  but you need to do a little better to catch up readers attention.
Create some discussion and use your link as reference or more information....

What made bitcoin survive is that it is decentralized. There is no central point which can be attacked and shut down.

Past attempts to create a digital currency all failed because they were not decentralized and/or because they couldn't solve double spending.

In Bitcoin, you pay for each input you add in a transaction.

You can see how much  you will pay here, to see if it is worth:
https://www.buybitcoinworldwide.com/fee-calculator/

Before you ask what is an input.
Every time you receive bitcoin, it creates a new input. If you have one input in each address, you have 2 inputs.

Outputs are the number of destination addresses (usually one for "change" back to you and one for destination)

Your transaction will probably have 2 inputs and 2 output

There is no commission in bitcoin network. Which wallet are you using? Just download Electrum (from electrum.org) and transfer all your funds there. You will make cheaper transactions and it will be profitable doing what you want if you use 1-3 sat/byte.

I didn't knew that....... This is the same as freewallet.org which is not a wallet at all....

Why do people keep using those fake wallets? Even blockchain.info gives you access to private keys

Those tokens are lost OP. Move your funds to a real wallet. Coinomi, Mycrypto, Myetherwallet, or even a ledger nano or trezor.

If I were you, I would use Coinomi. Old and very good mobile wallet. They are not open source, but thye have a good reputation and I never heard of people losing funds due to their fault. I use it for more than 2 years and I like it.

About your questions:

1 - Coinomi have mobile version for iphone (https://www.coinomi.com/en/downloads/).
2 - Coinomi supports segwit
3 - There is an electrum for OSX (https://electrum.org/#download). I don't know anything about apple, isn't it the same OS that Iphone uses?
4 - Coionomi support lots and lots of coins (125 blockchains)

That was a good answer DooMAD

Pingip, let's take Facebook coin for example
There are laws in the usa. Congress and trump and trying to push harder regulations on Facebook coin, just like a bank (you may have heard of that).
And they can force Facebook work just like a bank. You will be demanded kyc to transfer libra, they will ask what is your income, where did you get the money from , and will also blacklist people who are "suspicious"

In the end, Facebook will control your funds and to whom you can transact them. Just like a bank. Transactions may even be reversible (if regulation demands it).

Why didn't it happen to iota , nano , etc yet? Because those projects are a joke, and Congress and USA government etc are just laughing at them. But if they decide that those projects must demand kyc to use the network, iota / nano will be forced to comply, because they are companies. They can and will be shut down if they do not obey the law.


Now go try to shut down bitcoin

Bitcoin is valuable not because it is fast or cheap. This was not a problem when it was created (Visa already solved that), and this is not the problem it is trying to solve.
Bitcoin is trying to solve something else: Giving back power and control over their property (money) to individuals, without government inteference. Bitcoin allows you to transact with anyone you want, anywhere in the world, without asking authorization for no one.

Merited are wasted by merit sources every day because they do not find good posts to merit..

Your "friend" probably plagiarized content, which is the main reason for ban. If that is the case, it is over for him. If not, he can try to open a thread on meta and ask moderators to review his case.

However, the earned merits cannot be transferred in any case.

This is a very local issue, and most of the users in this forum can't help you.

In my case, Brazil, I have to pay 15% taxes of my capital gains (only if I sell)
Unless you are dealing with high amounts, I think you shouldn't worry about it now. Buy your bitcoin, study about how to store it safely, and when you decide to sell you can research about it.

There are tons of websites outside bitcointalk which may give you more precise information about your situation. Probably even uk government may have some information online about it (Brazil does)

Additional eth or BTC addresses will be all listed in the bottom of the page (iancoleman)
Maybe you will have to look for at different account number (there is a field there for it, 1, 2, etc under derivation path).
As I said, it will be painful for newbies to use this

I doubt this ever happened. Ga keys are not store online. Your phone may be hacked and the hacker got access to the installed app somehow, but the ga service was not.

The biggest problem with Google authenticator is that if you lose your phone and you didn't backed up the keys , your login is lost forever. This is why many people recommend using Authy instead.
Take a look here
https://bitcointalk.org/index.php?topic=3178131

Sms and email are far less secure, just as op said. Phone service providers are not paid to keep so high security level, and a hacker can receive an sms that should be directed to you.

I think they are talking about keyloggers, access to your copy and paste clipboard, etc.

If the attacker had physical access to your computer or keyboard or hardware wallet this is certainly a problem, and I would consider those devices permanently compromised (unless if you are dealing with small amounts of btc). Most of successful hardware attacks had physical access to the device.

There are also some attacks which you copy the correct address and paste the attackers address (when making transactions). This is why ledger nano confirms the address in the device's led. Maybe he was talking about that as well.

Agree.
And after you have done all that, your private keys are compromised. You should never again use that wallet, but create a new one with a new Seed.

This procedure should be done only to recover funds or forks, never just to "take a look at the private key".



Using the Seed is better to recover funds than using private keys, because you may have tons of addresses in different derivation paths, different accounts, also change addresses, etc, which will make it hard for newbies to find all addresses with balances.

Do you still have those promo codes? I saw your signature and thought it may be interesting to check out.

If you still have one, I would like. Thanks.

I noticed that about a month ago as well. But few days later it was ok. I don't know if it was vod's intervention or if it just synced or whatever.

Privatekeys have dozens of letters. They are not bruting force all of them, but 8. And it is not brute Force simple, as coding enthusiast pointed out.

Your conclusion is completely wrong because private keys are composed by dozens of letters, not 8only.

If you just care about transactions per second, you shouldn't use nano, but Visa. Faster more reliable and stable, tested, etc
If you care about decentralization,  really being the owner of your funds, and giving back financial power to individuals, bitcoin no doubt.

Scalability is just a problem to be solved if people are using the network. People are not using nano or bch

alegotardo, desculpe o off-topic no seu post rsrs


Essa é o tópico. O usuário não consegiu fazer retirada dos fundos de duas alts q sofreram 51% attack

I would like to make a small suggestion

I saw you add DT1 to the user profiles when they are on DT1. Why don't you add DT2 information as well?
I would like to see that feature.