Quote from: nc50lc on Today at 04:30:44 AM

Quote from: Airfin Same on Today at 02:30:54 AM

sometimes things confused me like in here block time is ~10min right?

It's "average" block time and not an absolute value.

That is based from the adjusted "difficulty" from the previous 2016 blocks (about 2 weeks).
The harder the difficulty, the harder it is to produce a hash lower than the "target".
So since mining is basically generation of pseudo-random hash, we will never know if miners get lucky enough to generate a valid hash in the next second or unlucky to generate it after an hour.

Quote from: Airfin Same on April 25, 2024, 07:45:37 PM

is it possible to have a transaction confirmed in few sec
by putting the higher fee on the time

by saying final i meant with no possibility to rteplace it with another one

Is there any particular reason for this?
Because in normal circumstances, this shouldn't be an issue if you're the sole owner of the private key.
Solved puzzle 66 or something?

its about this topic bitcoin puzzle
i saw people talk about things didn't know or hear about beore
like this double spend and RBF
https://bitcointalk.org/index.php?topic=1306983.0;topicseen