Dear friends,
Is it possible that your public key generates different bitcoinaddresses ?
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Yes, I think my other response talks more about who would own the private keys as I mentioned the concept of âproof of keysâ that Trace Mayer introduced and performs each year in January to make sure that we never have to worry about knowing that we âownâ our Bitcoin. I still donât know how to run my own node or perform that function, but I plan to understand that as I have my money at stake and I want to âverifyâ this for peace of mind and for sleeping comfort at night.
@CryptoChip a bit aside from your question, I bought a bit of BTC on CashApp but I didnât have any wallet ID. I then emailed them asking if we have a wallet for transferring in/out, and AT THAT TIME they said they donât support the transfers! Furthermore, I planned to use CashApp for one of my tenants⌠but somehow they got my account confused and now the BTC is GONE along with the little bit of cash I had in the account, after they showed the wrong Cashtag and confirmed automatically! And, after 3 emails, I gave up on customer support (I guess I hit upon an error in their system?). Love Cash for YEARS but not so hot on it any longer.
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HiâŚthanks for the information. I have been using CASHAPP a little bit because they charge less in fees than COINBASE charges. Of course, if I add the funds to COINBASE and transfer them to COINBASE PRO, that would be less, but then I have funds tied up on their APP and it usually takes too much time for it to clear in my opinion. So far, I havenât had any problems using CASHAPP. I can buy BTC there and transfer it right away without any problems. Itâs not the easiest APP to use, but itâs getting easier over time. I love using it to send money quickly, but thatâs only for people in the US as of right now if Iâm not mistaken.
I love their fees! And it was awhile ago that they didnât have the transfer working, so I will recheck. Not sure what happened last time!
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No, a bitcoin address is kind of a double hash of a public key with a prefix and checksum.
First character tells you wich kind of version and scripts to use. Starting with 1, 3 or bcâŚ
Check this post how to convert a public key to a bitcoin address:
https://forum.toshitimes.com/t/bitcoin-basics-discussion/8417/63?u=fabrice
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This depends of wich kind of job you want to do.
If you want to become a Blockchain developer, you definitely need to learn coding where you need some math skills. You will learn about bitcoin cryptography in Bitcoin programming course
First try running a full node on testnet until you are comfortable to switch to mainnet. Download bitcoin core and play around. You can âset prune on 1â so it only syncs to a recent part of the blockchain, so you donât need as much diskspace.
In the Bitcoin programming course, you will learn this
On an exchange like binance or coinbase, you donât own your crypto. Itâs basically a database and this exchange has your private keys and will do the real crypto transaction for you.(after you initiate a transaction) When you have your own keys, you control everything yourself. And nobody can acces your crypto exept if they know your private keys.
Basically if coinbase suspects that you did something wrong, they can just freeze your acces and confiscate your crypto
Thanks for your quick answer 
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Sure, if you set the target to the highest possible number 0xFFFFFFFFFFFFFFFF, you will find a block with only one try! Nowadays you will need a lot of leading zeros in your hash to meet the already low target. Every bitwise leading 0 will reduce the probabililty to find a block to the half.
Bitwise leading zeros of the hash:
0 : 50%
00 : 25%
000 : 12.5%
0000 : 6.25%
and so on.
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Ok, thanks for letting me know that this will be covered in Bitcoin programming. The more I learn, the more I realize I have so much more to learn. Thanks for the feedback.
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What other jobs are available, and is Defi easier to learn< thanks
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If you have basic understanding of how bitcoin and ethereum works (bitcoin and ethereum 101 courses) you should be able to follow the DEFI course
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Thanks for letting me know. I started with DEFI, but I stopped based on the suggestion of Ivan to take the Bitcoin basics first. So Iâm working my way through the Bitcoin basics now.
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There is a whole abstraction layer on that subject and how other currencies manage their lagging structures and block size to shorten the validation process I donât really know anything about SPVâs.
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Small question.
How are the Miners with the Canceled Blocks recuperate their money for the electricity spent in order to create the Block?
They donât get a reward! Thatâs also a reason that the blockreward is unspendable for 100 blocks
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Could you expand a bit on what you mean by âabstraction layerâ in this particular context?
Iâm interested to know â thanks.
What I meant by âan abstraction layerâ is that several systems have been thought through to deal with latency, queues (I guess) and peaks of arriving transactions in nodes. I donât really know much about the technology but I know that transactions are managed differently due to block size, and other constraints according to which blockchain they are in. Meaning, if you want to have full maximum block size used in each block, you will need buffers and time for the nodes to check and transmit to and fro other full nodes to have the same list of transactions to be established before the end of the previous block for the stored and distributed transactions to be simultaneously mined subsequently, worldwide. Some blockchains with very fast block mining time have thought about broadcasting locally and mining much geographically closer set of transactions not to lose the high speeds achieved during the mining itself. Several branches of theses blockchains are evolving in parallel before being added to the âtrunkâ chain - all of that in seconds. I saw that topic years ago, in Ivanâs stream, or something like that about new coins in 2018 (canât remember which ones). Might be PoS protocol 
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