EIP-4881: Deposit Contract Snapshot Interface

twoeths commented 1 year ago

Is your feature request related to a problem? Please describe.

Currently we have to always fetch all historical deposits, even through we do a weak subjectivity sync. This enhancement supports extracting and downloading a compressed merkel tree that's enough to produce deposit proofs (in order to produce blocks), and we can build our partial merkle tree from there

Refer to https://eips.ethereum.org/EIPS/eip-4881

Describe the solution you'd like

Implement Deposit Contract Snapshot beacon api https://github.com/ethereum/beacon-APIs/pull/245/files . This depends on https://github.com/ChainSafe/ssz/issues/293 , this is likely for the public apis we already have.
Consume it when doing weak subjectivity sync
Prune deposit root tree when Eth1Data is considered finalized

dapplion commented 1 year ago

@tuyennhv Please note that this mechanism will likely become obsolete soon once the deposit processing is moved from a bridge structure to in-protocol -> https://github.com/ethereum/consensus-specs/pull/3177

dapplion commented 1 year ago

Closing for https://github.com/ChainSafe/lodestar/issues/5561

AkshatGada commented 5 months ago

Can I be assigned to solve this issue , I am working on it since several days .

ChainSafe / lodestar

EIP-4881: Deposit Contract Snapshot Interface #4935