--- Log opened Sat Oct 23 00:00:11 2021
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04:19 < someone235> Hi, someone knows what is the common criticism against proof of space and time?
04:21 < tromp> main ones are 1) huge complexity 2) cannot commit to block body
04:28 < someone235> tromp: So how do they know which transactions belong to a block? Do they just need to be present when the miner mines a block?
04:30 < tromp> the proof can only commit to the farmer public key. which us then used to sign the block body
04:30 < tromp> so as a result, a collusion of recent miners can rewrite history
04:36 < someone235> Yeah gotcha
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06:55 < someone235> tromp: but isn't the previous block hash in a block header contains the block body of the previous block? So if you'll mutate a block body this block won't have a future?
06:56 < tromp> no, the header commits to the previous header only in proofs of space.
06:57 < tromp> it forms a header-only chain, while there is a separate body only chain with signatures linking it to the header chain
06:59 < someone235> tromp: Are you sure? it sounds pretty trivial to require you to include a commitment to the previous block body in your block header.
07:02 < tromp> no; that would allow grinding
07:03 < someone235> Yeah right
07:05 < tromp> it's all rather messy, the complex proof of space construction, the VDF function, the extra assumptions needed for security; the lack of commitments
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10:55 < someone235> tromp: thx for the help btw
12:44 < someone235> tromp: Do you know any paper that describes theoretical attacks against PoST?
13:27 < tromp> sorry; no, I don't
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18:24 < yanmaani> Why hasn't any cryptocurrency used AES for PoW?
18:24 < yanmaani> most CPUs already have AES hardware acceleration, right?
18:24 < yanmaani> so making ASIC chips isn't that favored
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21:11 < db> Monero utilizes AES extensions I believe
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23:23 < tromp> because ASIC resistance is a misguided goal
--- Log closed Sun Oct 24 00:00:12 2021