in what file is the fee calculated

transaction fees to be precise

or i guess where is "fee" defined

blockchain.cpp IIRC.

grep for "estimate_fee" and you should find it, or links to it.

Nope, I just looked it up, it's get_dynamic_base_fee_estimate (blockchain.cpp)

damn i used the fee from tx_pool.cpp

So I had hoped that BP partial rewinding could be useful for more general sender-recipient data hiding, but I think it has to be limited to data that only the sender might wish to later recover

If the recipient knew the PRNG seed too, it could brute-force all amounts (but not Pedersen masks), even those not destined for it

However, the sender already knows those

It could be used for something like a transaction private key

Reminder: research meeting in #monero-research-lab at 18:00 UTC today (about an hour from now)

Hi, I'm synching the blockchain from scratch (wallet resotre height is 0), I'm at 50% and somehow my data.mdb only weigh 8 GB. I've stopped and restarted the deamon and it continued where it was (50%).

Is that expected ? It used to weigh 60+ GB.

sure, but earlier blocks were much smaller

pre-ringCT transactions were much smaller. so yes, it sounds normal.

Oh, I see. So the next 50% should be about 50GB ?

that would make sense

thanks hyc

It would be interesting to also have some kind of time estimate

(perhaps not feasible)

Im wondering about classify_addresses(), in particular the special case where the change address is a subaddress. It seems like num_subaddresses will stay at 0, and so there won't be a tx_pubkey created for it.

construct_tx_with_tx_key() and generate_output_ephemeral_keys() are the two places that determination would be made

unless the one-time address for change outputs is calculated different.. hm

and yep that's how it's done; quite complex functions whew

"quite complex functions" seems like a good description of the codebase sometimes :D

I currently have around 30 tabs open, 10 tabs each for three different function mazes

hey if it was easy everyone would be doing it......