4.4.2 User Brushing Rewards

The number of rewards a user can earn daily from brushing:

Where:

• TU represents the number of Token rewards a user earns from daily brushing.

• Fm is the user's total brushing score over the past 30 days (initial value is 3000).

• Ft is the user's average brushing score for the current day (maximum score is 100).

• Ac is the number of active brushing devices over the past month (devices that brushed and uploaded data within the current month are considered active).

• At is the user's decay coefficient.

• Tt is the number of incentivized Tokens available for the current day.

• Lc is the user's Token staking coefficient multiplier.

• 

  represents the cumulative total of the daily average brushing scores for all toothbrushes over the past 30 days.

E is remaining reward tokens from the previous year (initial value is 4.2 billion)

Ft = (Brushing Zones Reached * 52/16 + Effective Brushing Time (seconds) * 48/120) * Brushing Pressure Multiplier

Ft represents the score for a single brushing session, with a maximum score of 100.

Brushing Zone Partitioning Rules: The left and right areas are each divided into 4 zones with 3 surfaces each, and the middle area is divided into 2 zones with 2 surfaces each.

• Effective Brushing Time: The effective brushing time for each session is capped at 120 seconds.

• Brushing Pressure Multiplier: Brushing pressure is categorized into three levels: Too Light / Optimal / Too Heavy. The multiplier is calculated based on the average pressure of the brushing session. Too Light: 0.9, Too Heavy: 0.8, Optimal: 1.0.

• Calculation Rules: Integer arithmetic is used. Only the integer part of the result is used during calculations.

The calculation rules for the brush head depreciation factor are as follows:

• The effective lifespan of a brush head is 90 calendar days.

• After the effective lifespan of the brush head expires, if the user does not replace the brush head, the reward points will begin to decay. The specific decay coefficient calculation formula is as follows:

  Brush Head Decay Coefficient At = {1 within 90 days of brush head life; after 90 days, decay by 5% per day until the new brush head is replaced, with a minimum decay of 20%}