Preconfs

• Preconfs are commitments that your transaction would be included in a certain block. The commitment is backed by a stake that would be slashed if you renege on your commitment
• Commitment by who?? Ideally by the block proposer as they build the block
• BUT blocks are not really built by the block proposer, do they? They are built by Block Builders (Proposer- Builder- Separation). How does this all work?
• Block Builders can make these guarantees too, but it would be a weaker guarantee. Or a combination of builder and proposer.

Types

• Inclusion Preconfs
  • Guarantee - I will include you transaction in this block but it may revert. Weaker guarantee, easier to implement
• Execution Preconfs
  • Guarantee - I will include you transaction in this block and it will not revert, stronger guarantee, harder to implement

• Clearly, Execution preconfs are better, what are its challenges?

How Validators receive Preconf transactions?

• private order flow?? from Searcher or protocols

Approach 1