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Snapshot apis #293

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twoeths opened this issue Dec 23, 2022 · 0 comments · Fixed by #400
Closed

Snapshot apis #293

twoeths opened this issue Dec 23, 2022 · 0 comments · Fixed by #400
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@jeluard @twoeths

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twoeths commented Dec 23, 2022

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

This is to support EIP-4881 https://eips.ethereum.org/EIPS/eip-4881#deposit-finalization-conditions

  1. get_snapshot: API to extract finalized roots given a gindex (or depth + index) (below is for depth = 4 and deposit_count = index)

Screen Shot 2022-12-23 at 15 33 55

  1. from_snapshot: API to reconstruct the tree from a snapshot (similar to reconstructing from a proof), params would be a list of finalized roots and a gindex (or depth + index)
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feat: snapshot apis for EIP-4881 ChainSafe/ssz
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@jeluard @twoeths