As I perceive the SVP protocol, a shopper may be fairly sure {that a} transaction has been accepted on the blockchain in the event that they know it’s a member of a sure block, by way of the Merkle path, and an affordable variety of blocks have been mined on high of that block.
How a lot complete knowledge would that be, roughly? I assume for those who have been starting with 0 data, you would wish all the block headers, starting from the genesis block? However as soon as you’re satisfied you’re looking on the head of the suitable chain, you can discard all the historic block headers, and simply save a current one as a trusted place to begin to judge subsequent transactions?
I assume the premise of my query is defective, as a pretend transaction may at all times be embedded in a pretend chain, if sufficient computing sources have been obtainable. So, there isn’t a quantity of knowledge that insures a transaction is legitimate, with out entry to different data, e.g., what’s the longest chain presently in existence.
A greater query for my functions can be how a lot would the electrical energy value to create one pretend block header at at present’s issue stage? Figuring that blockchain presently pays round $60K to mine one block, I might guess it have to be in that order of magnitude, although smaller since we’re eradicating the race situation.