Polkamisc

Miscellaneous scripts used for Polkadot validators.

Installation

Make sure you have node and yarn installed, then run:

yarn install

You can also use the NixOS build script:

nix-build .

Commission calculation

This repo contains a simple algorithm for commission calculation, aiming at dealing with over-subscription problems, and incentivizing nominators to evenly distribute votes. It first fetches a validator's total nominator stakes (note that this is different from nominator exposure). Then, it assigns a commission ranging from 0.5% to 5% based on the total stakes.

To run the algorithm, first fetch necessary validator information.

./index.js fetch-validators validators.json [era]

[era] is the current era number. It will fetch from RPC endpoint at rpc.polkadot.io. Note that because the nominator list is huge, this operation is going to take some time.

Then calculate the commission based on the validator data.

./index.js commission validators.json [address]