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Treasury Cut

The protocol parameter (often called τ) that decides what fraction of each epoch's reward pot is moved to the on-chain treasury before the remainder is paid to stake pools and delegators.

The mainnet value has been 0.20 (20%) since Shelley. Together with the monetary expansion rate, the treasury cut decides the long-run balance between user-facing staking rewards and on-chain treasury accumulation.

The treasury can only be spent through a treasury withdrawal governance action.

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