This is an RFC for a consensus breaking change in the mining protocol to distance Stacks miner selection from Bitcoin miner. There are 2 options proposed that are dependent on functional feasibility. I am not overly familiar with the mining calls and miner selection code Allow miners to submit a…

Important background information: Recent Stacks network behavior and next steps (Bitcoin MEV, orphan blocks)

A few thoughts about the unified mining pool (UMP) suggested in your link. UMP feels like a move to PoS with extra steps. The stackers/miners relationship becomes a complex way to transfer coinbase reward value to stackers. This is a Stack direction thing and well above my place in the Stacks c…

[image] dngrhm: UMP feels like a move to PoS with extra steps How so? To my eyes, there’s nothing about the UMP approach that isn’t already possible today with PoX. The UMP just adds a layer of indirection between the act of producing a block and the act to announcing the winning block. Bu…

This could just be my misunderstanding of how PoX works and what is necessary for the protocol to ensure security. We could continue that part of the discussion on the UMP :smile: thread as it is more peripheral to this thread. Smoothing feels like a quick fix if it is going to take longer to get …

Any thoughts on the smoothing proposal?

I think smoothing makes sense. The PoX algo is already doing some form of lookback, since a given miner’s contribution to their chance to win a given block is: Miner Contribution = min(0,median(last_6_block_sats_sent)) Miner Win Chance = Miner Contribution / Sum of All Miner Contributions So this…

I pulled sats committed for each block for each miner from Onstacks for 30 stacks blocks 106651-106622. There were 6 active miners across those 30 blocks. With respect to Bitcoin MEV, 4 seemingly trustworthy, 2 seemingly malicious (…AFCR, …73FE). I calculated their probability of winning a block P…

[image] Bitcoin MEV: Workstream Update Thread Core Blockchain Dear all Stacks/Bitcoin community: To expand further “How you can help” in Pavitthra’s comment, in additional to joining the discussions of public calls, there are targeted questions core devs would…

RFC: PoX reservation or smoothing as a countermeasure for Bitcoin MEV

Protocol

HeroGamer June 9, 2023, 1:00pm 9