8.4 Item bonus calculation (one-time/cycle card, capping mechanism)

The prop system is the micro-payment support system of the platform, and it is also a key mechanism for improving mining efficiency. In order to ensure fairness and inflation management, Whiffin has set rigorous bonus mechanisms and capping rules.

Prop types and stacking rules:

Prop type	Use cycle	Addition effect	Limitation description
Disposable efficiency card	Effective per use	+ 10% (up to 3 sheets stacked)	Nonlinear stacking, 3 sheets up to + 25%
Weekly card	Consecutive days	+30%	Weekly/monthly cards cannot be used at the same time
Monthly card	Consecutive 30 days	040%	Overlay with disposable cards, capped

Capping mechanism (WINP/WINC maximum efficiency):

WINP_multiplier = min(1.0 × E_one_time × E_periodic, 1.5)

• Example: Use 3 disposable cards + monthly card = 1.25 × 1.4 = 1.75 → the actual output is 1.5 times

• The system automatically truncates the excess part to avoid uncontrolled expansion caused by props

Through NFT level growth, agency collaboration mechanism, fatigue system, and strategic props, Whiffin has built a hierarchical, strategically rich, and controllable customer engagement system. This not only enhances the gameplay and economic stability of the platform, but also ensures the rationality and value return between user input behavior and growth cycle.