As I perceive the SVP protocol, a consumer could 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, through the Merkle path, and an affordable variety of blocks have been mined on high of that block.
How a lot whole knowledge would that be, roughly? I assume in case you had been starting with 0 information, 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 best chain, you possibly can discard all the historic block headers, and simply save a latest one as a trusted start line to judge subsequent transactions?
I assume the premise of my query is defective, as a faux transaction may at all times be embedded in a faux chain, if sufficient computing assets had been obtainable. So, there is no such thing as a quantity of information that insures a transaction is legitimate, with out entry to different info, e.g., what’s the longest chain at present in existence.
A greater query for my functions could be how a lot would the electrical energy value to create one faux block header at immediately’s issue degree? Figuring that blockchain at present pays round $60K to mine one block, I might guess it should be in that order of magnitude, although smaller since we’re eradicating the race situation.