Published on September 2nd, 2015 | by bitcoin0
Discover more about Bitcoin Fork
He has been involved with the Israeli Bitcoin Association, The Bitcoin Embassy in Tel Aviv, and has founded AlefBit — the first Bitcoin education website in Hebrew.
Each node in the network downloads all the blocks to connect a chain, verifies them against the laws of math and Bitcoin and chooses the correct chain accordingly.
For instance, if there is a block that has an invalid cryptographic signature, any chain including that block is invalid.
Something the old software would consider a violation of the rules of Bitcoin: blocks larger than 1MB.
This is why recent developments are so interesting: using the new software is a way of choosing new Bitcoin rules.