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Lido offchain keys experiment (extended)

Inspired by https://github.com/almsh/offchain-keys-playground prototype.

The repository contains two separate contracts: the Submitter contract to simulate the Ether deposit process, and the Node Operators Registry (NOR) contract using Merkle tree roots.

The NOR contract features:

  • supports multiple operators
  • unlimited number of key's trees per each operator
  • each tree can contain a different number of keys (a multiple of degree 2)
  • key distribution balancer between operators

Also, helper functions for tests can serve as a starting point for the creation of a toolkit for node operators.

requirements

  • nodejs
  • npm

prepare

git clone https://github.com/krogla/lido-offchain-keys-test
npm i

run tests

npm run test

get gas compare tables

npm run gas

Script tries to deposit 200 keys for 3 NOPs using real Deposit contract code.

The scrip will form 2 csv files at repo root: gas_per_1key_deposit.csv and gas_per_1root_add.csv

The first one contains the average value of gas spent on the deposit of 1 key at different variations of treeSize \ keysPerBatch. Second - the average amount of gas spent by the operator to add one Merkle tree root.