I was asking myself if it is possible to clone a coin 1:1, mine a lot of coins and sell them as real coins
For example i copy the sourcecode of SC nd mine those coins on my Laptop, since Im the only 1 mining this (clone, copy) Iit would be easy to mine lots of them
What mechanism prevents that from happening??
We all know the Federal reserve Bank has the right to print Dollars and in the Bitcoin System everyone can mine Bitcoin but what stops me -besides the knowledge- from cloning those coins and kind of faking them
Has anyone ever tried that??
you could do so. you could copy any coin (with same specs, gensis and merkleroot), start a little network which is NOT connected to origin network, you could mine a ton of that coins. But in the moment when you connect "your" copied network to the origin (public) network all your blocks will be invalid. Remember that a decentralized blockchain network is cryptographically validated (merkle-based) on base of ECDSA.
So this means all the coins you mined in "your" network never existed in the legacy blockchain, never got confirmed and never will exist there... They will only be invalidated when you connect to the network. If you hardcode your checkpoints based on your "copy"-network, then you will continue to exist on a "fork" of the blockchain.
So with the acutal hardware technologies available to us it is not possible to "fake" coins (practically). Theoretically and with unlimited hashingpower not.