Hello
This is probably a dumbass question but I need some clarification.

To verify a transaction it is sufficient to get it confirmed by 6 blocks. So if six confirmations are normaly enough to confirm a block, why do we have to save the whole blockchain. Could we not just save let's say the last 1000 blocks of the blockchain and dismiss all that was before? Because the last 1000  blocks would be sure enough to prove the integrity of the blockchain.

Thank you

Hi , probably this topic has already been discussed somewhere in this forum but I was a bit lazy to search it.

I still do not fully grasp the concept of Bitcoin. The miners do the job of calculating the the hash codes and are rewarded with bitcoins. So what happens after all the BTC have been mined? There will be no incentive for anyone to mine anymore, which in turn means that the Bitcoin system will die.

Ok there are the fees. But they are optional arent they? Does this mean that if I do not attach a fee to my transaction it simply wont be processed? And how will I determine how big the fee should be in order it will be processed properly fast.

Please elaborate on that.

Best regards
schnuber

As far as I understood, the concept of bitcoin is, that no one has the ability to control it. There is no entity behind it whatsoever that has the ability to manipulate the bitcoin system.
But what happens if sometime in the future we discover that the bitcoin software has a bug. E.g a security bug or a technical bug or simply any sort of bug that would significantly impair the usability of bitcoin. Could the bug be fixed somehow?
Well, to my thinking the answer to this question should be NO. Because if it were YES then that would mean that the bitcoin system actually IS manipulable.

Please clarify. Thanks

Best regards
schnuber