I think of it like this. The public key is what ties together all the generated addresses where you receive from others who send to those multiple addresses. So the public key is like your home address. You don't want people who send you stuff to know where you live so you give them a PO box address. Thats like a wallet address. It ends up at your house which is like it being connected to your public key.
The parent public key, chain code, and the index number are combined and hashed with the HMAC-SHA512 algorithm to produce a 512-bit hash. This 512-bit hash is split into two 256-bit halves. The right-half 256 bits of the hash output become the chain code for the child. The left-half 256 bits of the hash are added to the parent private key to produce the child private key. Why is this last step needed? why not just take left-half 256 bits of the hash as child private key?
do I need to make kyc when I buy crypto wallet like trezor or ladger? and if no, does cryptowalets providers match my public key with my personal details like name, address, ip... ???
Hi. Bitcoin addresses changes every time you receive a transaction. But for other crypto assets (Ethereum, etc.) the address stays the same. how do we can change the addresses for other crypto to stay with privacy like in bticoin? thanks
Do I have to pay a higher fee when I send 1 output out of various inputs instead of sending 1 transaction from 1 adress? Thank you for your answer in advance, I really like your videos!
Is it likely that someone could create public / private keys with a CPU array and then scan the blockchain, waiting for a user to move coins to an address where a private key is known?
thirdnormalform it is happening right now. It's called brainwallet mining. Try to create a wallet from a very weak passphrase and send some funds to it... it will be emptied in seconds
i have 1 question sir, Suppose transaction A of .5 btc and transaction B of 20 btc. is A and B both transaction will use same mining power if not why the fee is same for both.
because it implies the same amount of miner work; same puzzle solved for 0.000001 BTC as for 100000 BTC. Percentage fees are used by banks, crypto is a different world
![Can Someone Guess My Crypto Private Key? [From Sand, to Molecules, to the Observable Universe]](/img/n.gif)
I have never listened to anyone so smart, yet _so very adept_ at explaining technical concepts in such an understandable manner.
The fact that andreas has only 147k subscribers let’s you know how truly early we still are.
isolate2elevate I don't think he will amass a huge following
He is no fluff. That doesn't sell well
That only shows how dumb humans are...
no, its just lets you know that people dont really care about the tech only about money. i care about both
*196K now, but still so early.*
OMG! I've spent days trying to find information on the topic of addresses and all is here explained clearly. Liked and subscribed!
Andreas is so amazing speaker. I can listen to his talks all day and i always learn something new.
I think of it like this. The public key is what ties together all the generated addresses where you receive from others who send to those multiple addresses. So the public key is like your home address. You don't want people who send you stuff to know where you live so you give them a PO box address. Thats like a wallet address. It ends up at your house which is like it being connected to your public key.
@@wesleyashley99 excellent analogy
Looking forward to your upcoming Joe Rogan appearance
This is very insightful and helpful. Thank you so much.
Thanks Andreas! You are the best!
Especially with Vanity address creation, wont we run out of possible addresses? How many possible addresses can there be.. 58 to the power of 58?
2^160
I did not label some of my address and keys for some tokens. How can I tell which is the addresses and which are the keys?
how can i generate a vanitiy adress and be sure that is safe?
The parent public key, chain code, and the index number are combined and hashed with the HMAC-SHA512 algorithm to produce a 512-bit hash. This 512-bit hash is split into two 256-bit halves. The right-half 256 bits of the hash output become the chain code for the child. The left-half 256 bits of the hash are added to the parent private key to produce the child private key.
Why is this last step needed? why not just take left-half 256 bits of the hash as child private key?
if I generate a watch only wallet will it show all my addresses together or will every new address be separate?
do I need to make kyc when I buy crypto wallet like trezor or ladger? and if no, does cryptowalets providers match my public key with my personal details like name, address, ip... ???
Thank you professor Andreas :-)
What happens when I use multiple wallets? How do I consolidate all of my transactions?
thank you so much!
Is there a vanity gen command in the Bitcoin client or is it the website only that provides it? And if so, is it legitimate????
There will be a small quiz on Friday……..🤓
He is very good! Keep teaching us👍
Hi. Bitcoin addresses changes every time you receive a transaction. But for other crypto assets (Ethereum, etc.) the address stays the same. how do we can change the addresses for other crypto to stay with privacy like in bticoin? thanks
Do I have to pay a higher fee when I send 1 output out of various inputs instead of sending 1 transaction from 1 adress?
Thank you for your answer in advance, I really like your videos!
Infected exe Thanks for your answer! What do you consider a low fee for a transaction?
Thanks for that information
Is it likely that someone could create public / private keys with a CPU array and then scan the blockchain, waiting for a user to move coins to an address where a private key is known?
thirdnormalform it is happening right now. It's called brainwallet mining. Try to create a wallet from a very weak passphrase and send some funds to it... it will be emptied in seconds
Gianluca Ghettini follow up question, should a typical user worry about losing coins in this manner if they have a proper pass phrase? Thank you!
a proper seed is a true random 256 bit private key, any wallet (both software and hardware) will take care of that
It looks like you've provided a Bitcoin address. Is there something specific you'd like assistance with regarding this address?
Thanks for the info.!!
I didn’t understand a thing 😒 he didn’t talked about uses of private key and stuff?
how do I generate a bitcoin wallet address from a public key ?????????????????????????
How can I get the public key from the bitcoin address?
did you ever find out?
He answers this at 0:40
Smashed the like.....
Can the vanity addresses be reversed ,I mean finding the private key by using graphic cards to try private keys?
As Andreas said at the start of this video, you cannot derive public key from address. And connot derive private key from public key.
i have 1 question sir,
Suppose transaction A of .5 btc
and transaction B of 20 btc. is A and B both transaction will use same mining power if not why the fee is same for both.
because it implies the same amount of miner work; same puzzle solved for 0.000001 BTC as for 100000 BTC. Percentage fees are used by banks, crypto is a different world
pcgurupontro thanks
Very clear
I have a question about getting your crypto from blockchain
could the old hack of using floating point rounding errors to steal bitcoins? what numeric encoding is used for fractions of bitcoins is used?
First....nice explination.......:-D
Can somebody give this man a microphone and some egg cartons for echo dampening?
Accept BAT in Brave Browser for your UA-cam Channel and other sites.
Michael Sane
How to get bat
oh boy did this not age well, 10:50
i genned a vanity address with 8 chars in two hours with my 5800X lmao
Hi Andreas could you help me get my Bitcoin address.
Welcome Poland
Does anyone understand what you talk about?
Hell no
I have a doubt
If I can count 0 to 2^256 can I hack any bitcoin coin accounts 🤔
Yes, but you can’t count to 2^256
I love you andreas but i didnt understand anything. I think i should just give up and buy Doge
So basically vanity addresses are ridiculously irresponsible from an environmental/energy consumption point of view.