I’m trying to get my head around this but all I’ve got is a good idea of what an aneurysm would feel like.
I’m trying to figure out how to generate the merkleroot from getblocktemplate but everything I’ve seen so far is bitcoin based & its not helping.
Can anyone point me at the appropriate place?
I think mining.notify is where that is
Yup, that’s where I am, but at the server end of things rather than the miner.
The merkleroot is a hash of the transactions (hashed with what?) and some extra detail from getblocktemplate like the coinbase, etc. Trying to generate it rather than mine with it.
Maybe this
I’ve been working from that & its useful, but the juicy bits I need are not there - sure there’s a recipe for ‘merkleroot soup’ somewhere.
Maybe fn() is in one of these curcuit or maybe in the incrementalmerkles (in the 2nd theres a merklepath fn) (im sorry for the goose chase, this is current)
It’s funny cuz looking at it I actually kind of understand it a little because it’s in Rust!
I’ll look through it more tomorrow
Found a vague reference to recursively hashing the transactions ids in the block template with SHA-256 to get part of the merkleroot, not sure if that’s even relevant to Zcash but will give it a try.
There’s other stuff that has to be appended to the tx hash, guessing that follows the BTC method so at least I have a starting point.
Amazing lack of information out there (maybe my ‘google-fu’ is lacking), getting detail on mining/miners is like trying to research state secrets.
This migjt help, slide 14 describes the Merkle root as taking in the note commitment and authentication path (ya know a generalized description)
Slides from Sean Bowes presentation at Zcon0
I remember vaguely of one where zooko describe the circuit but I can’t remember exactly
Pretty sure its here
http://zerocash-project.org/media/pdf/zerocash-extended-20140518.pdf
Found useful stuff in the protocol spec, section 7.5