Today we explain the meaning of the term Digital Signature towards the bitcoin blockchain.
First, to send any amount of bitcoins to my wallet I have to prove that I am the owner of the private key.
Digital signatures will give you this proof of possession, obviously without making my private key public.
When I submit a transaction, it is mathematically mixed with my private key to create the digital signatures.
When the miners will go to validate my transaction, the digital signatures together with my public key will allow the miners to validate the transaction, guaranteeing possession of my bitcoins and avoiding double spending.
Digital signatures are different every time you sign a transaction, so they will be different for every send to any address.
