8.1 NFT level upgrade mechanism (Exp, output bonus, repair cost)

Whiffin's NFT has a growth curve of 1-100 levels. Users can gain experience by using smoke cartridges, gradually improve the NFT level, and then improve the daily mining output efficiency (WINP/WINC).

Upgrade rules:

• Ways to gain experience :

Ordinary cartridges each get 1 EXP weight

Each advanced cartridge gets 5 EXP weight

• Experience required for upgrade (linear growth) :

• Exp(n) = 1 + (n - 1) × 20.2

For example: Exp (1) = 1, Exp (2) = 21.2, Exp (3) = 41.4...

• Cumulative upgrade experience :

• Exp_cumulative (n) = [Exp (i) ], i from 1 to n

• Upgrade Benefits :

WINP/WINC mining output increases linearly with level, up to 2000% total bonus

For example, the output of Lv.1 is 70 WINP, and the output of Lv.100 can exceed 1470 WINP.

• Repair cost mechanism :

• Repair cost (n) = 0.1 + 0.20101 × (n - 1)

The higher the level, the higher the cost of USDT/WINp required for repair (such as Lv.100 repair cost ≈ 20 USDT).

NFT upgrade, combined with behavioral sustainability, output efficiency, and cost balance, is the core fulcrum of Whiffin Gamification incentives and inflation control.