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MEV Boost compatibility #2987

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Issue Addressed

MEV-boost compatibility

Proposed Changes

  • New --private-tx-proposals flag for the VC
  • Make beacon blocks generic over transactions to facilitate signing over blocks with only tx roots (blinded blocks)
  • --payload-builders BN flag for use with one or more MEV-boost like services

Additional Info

WIP

realbigsean and others added 30 commits December 17, 2021 10:33
- `PrivateBeaconBlock`
- `PrivateBeaconBlockBody`
- `SignedPrivateBeaconBlock`
- GET lighthouse/validator/blocks_private endpoint
This reverts commit 5982466.
…neric-transactions

� Conflicts:
�	Cargo.lock
�	consensus/state_processing/src/per_block_processing.rs
�	consensus/state_processing/src/per_block_processing/block_signature_verifier.rs
�	consensus/types/src/beacon_block.rs
�	consensus/types/src/beacon_block_body.rs
�	consensus/types/src/execution_payload.rs
�	testing/ef_tests/src/cases/operations.rs
@realbigsean realbigsean added the work-in-progress PR is a work-in-progress label Feb 1, 2022
@realbigsean realbigsean changed the title Generic transactions MEV Boost compatibility Feb 1, 2022
…neric-transactions

� Conflicts:
�	beacon_node/http_api/src/lib.rs
�	consensus/types/Cargo.toml
@paulhauner paulhauner added the bellatrix Required to support the Bellatrix Upgrade label Feb 2, 2022
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Regarding our chat this morning about the merge transition and payload builders. I'm tempted to say that we don't try to produce blocks with a payload builder until the justified block is post-transition. The transition is a sensitive and complex time, I think it would be nice to keep things simple until 2/3rds of validators are agreeing up on the execution chain.

I realise it will be lost profit for some stakers, but in the best case we'll see justification of the transition block in 2-3 epochs (~15mins). As I see it (and I might be missing things) I think being cautious around the transition is worth the costs.

@realbigsean
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I'm going to close this branch but won't delete it because this is compatible with kintsugi. #3062 will be the kiln v2 target.

@realbigsean realbigsean closed this Mar 8, 2022
bors bot pushed a commit that referenced this pull request Mar 31, 2022
## Issue Addressed

MEV boost compatibility

## Proposed Changes

See #2987

## Additional Info

This is blocked on the stabilization of a couple specs, [here](ethereum/beacon-APIs#194) and [here](flashbots/mev-boost#20).

Additional TODO's and outstanding questions

- [ ] MEV boost JWT Auth
- [ ] Will `builder_proposeBlindedBlock` return the revealed payload for the BN to propogate
- [ ] Should we remove `private-tx-proposals` flag and communicate BN <> VC with blinded blocks by default once these endpoints enter the beacon-API's repo? This simplifies merge transition logic. 

Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: realbigsean <sean@sigmaprime.io>
paulhauner pushed a commit to paulhauner/lighthouse that referenced this pull request Apr 4, 2022
## Issue Addressed

MEV boost compatibility

## Proposed Changes

See sigp#2987

## Additional Info

This is blocked on the stabilization of a couple specs, [here](ethereum/beacon-APIs#194) and [here](flashbots/mev-boost#20).

Additional TODO's and outstanding questions

- [ ] MEV boost JWT Auth
- [ ] Will `builder_proposeBlindedBlock` return the revealed payload for the BN to propogate
- [ ] Should we remove `private-tx-proposals` flag and communicate BN <> VC with blinded blocks by default once these endpoints enter the beacon-API's repo? This simplifies merge transition logic. 

Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: realbigsean <sean@sigmaprime.io>
paulhauner pushed a commit to paulhauner/lighthouse that referenced this pull request May 6, 2022
## Issue Addressed

MEV boost compatibility

## Proposed Changes

See sigp#2987

## Additional Info

This is blocked on the stabilization of a couple specs, [here](ethereum/beacon-APIs#194) and [here](flashbots/mev-boost#20).

Additional TODO's and outstanding questions

- [ ] MEV boost JWT Auth
- [ ] Will `builder_proposeBlindedBlock` return the revealed payload for the BN to propogate
- [ ] Should we remove `private-tx-proposals` flag and communicate BN <> VC with blinded blocks by default once these endpoints enter the beacon-API's repo? This simplifies merge transition logic. 

Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: realbigsean <sean@sigmaprime.io>
@realbigsean realbigsean deleted the generic-transactions branch November 21, 2023 16:14
This pull request was closed.
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