Merge Digi-sign Verification with airSlate SignNow

Merge digi-sign verification

all right so far we have seen hash functions we have seen digital signatures so it is now a good time to see an example how these cryptographic algorithms work on a simple uh bitcoin transaction so in order to understand how bitcoin transactions work i will briefly describe how a bitcoin scripting language works okay bitcoin scripting language is specifically designed for bitcoin and it's simply called script but it is very similar to a very old language called forge in order to understand the script you don't need to know fourth but the main approach is the same it is stack based which means that every instruction is executed exactly once in a linear manner so bitcoin scripting language is not turing complete this means that you cannot do everything by this scripting language okay that is the main difference between a target actually this is why people can do more you know smart contracts using ethereum because you have more freedom there but here the scripting language is somewhat limited you can also create smart contracts using bitcoin this is also something people have a misconception about they think that bitcoin doesn't allow smart contracts and they think that ethereum allows them actually both of them i loved it but in the bitcoin you have to do [Music] you have to construct very clever transactions and so far we haven't seen this kind of transactions you can do many different things but people didn't bother because it is hard to do that and sometimes those smart contracts has to do in two different transactions but ethereum uses a turing complete language which actually allows you to use for loops and that kind of thing so you can do everything easily there so since we are using a linear manner language there are no loops since there are no loops there cannot be any infinite loop right so this is why actually bitcoin uses a very simple scripting language so this is a deliberate choice they are trying to prevent infinite loops because whenever you write a transaction all of the miners have to run that code okay so the number of instructions in the script gives us an upper bound on how long it might take to run and how much memory it could use since it is you know stack based language we can easily guess the by the number of instructions we can easily guess the upper bound on how long it might take to run and how much memory it could use actually depending on this you are going to pay transaction fees when a transaction is unknown to the network miners have to run this secret so this is why we don't want infinite loops so you might say that since ethereum is turing complete we can create infinite loops there yes but when you create a transaction in ethereum you also pay some gas fees so when a miner actually receives your...