Early adopters who used in Tornado Cash were allocated a share in governing the protocol on launch to aspire for an equitable demographic in the asset's economics.
The [early adopter addresses](https://github.com/tornadocash/airdrop/blob/master/airdrop.csv) that made deposits into ETH pools before block `11400000` were allocated a non-transferable TORN voucher (vTORN) that could be redeemed 1:1 to TORN within 1 year, from December 18, 2020, to December 18, 2021. The expired assets are then reallocated back to the treasury and participants that failed to claim can no longer redeem.
The airdropped amount depended on a users’ deposit size and age, larger deposits and older deposits would have a greater allocation. Multipliers for deposit size are logarithmic:
So that a larger deposits like 100 ETH only got twice as many tokens as a 1 ETH deposit, the multiplier aspired to reduce any skews by focusing on proactive usage and not purely volume.