> ## Documentation Index
> Fetch the complete documentation index at: https://docs.binibit.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Claim & Mining
> Background CRS accrual at 10K/hour base + lesson bonuses, claimed every 4 hours.
## How mining works
CRS mining runs **continuously in the background** — you do not need to keep the app open. The Bini App backend tracks your mining rate and accrued amount.
Every **4 hours** you can **claim** the accumulated CRS to your balance. If you don't claim, the bucket stops filling at 4 hours of accumulation (the "claim window").
```
Mining rate (CRS/hour) = 10,000 + sum of lesson bonuses
Claim window = 4 hours
Reward per claim = mining_rate × 4
```
## Base mining rate
```
Base: 10,000 CRS/hour
```
Every user — Level 1 or Level 30 — earns at least the base rate. This is non-decaying and not tied to lesson progress.
## Lesson bonuses
Each lesson upgrade adds CRS/hour. With all 30 lessons at L1, you get +18,465 CRS/hour (29% boost over base). With all 30 at L10, you get +184,650 CRS/hour (\~19× over base).
| State | Total CRS/hour | 4h claim | 2 claims/day | 3 claims/day |
| -------------------- | -------------: | -------: | -----------: | -----------: |
| Level 1 (no lessons) | 10,000 | 40,000 | 80,000 | 120,000 |
| All lessons L1 | 28,465 | 113,860 | 227,720 | 341,580 |
| All lessons L5 | 102,325 | 409,300 | 818,600 | 1,227,900 |
| All lessons L10 | 194,650 | 778,600 | 1,557,200 | 2,335,800 |
See [Lessons](/bini-app/lessons) for the cost curve to reach each milestone.
## The 4-hour claim window
```mermaid theme={null}
flowchart LR
T0["T=0
Last claim"] -- "fills 50%" --> T2["T=2h"]
T2 -- "fills to 100%" --> T4["T=4h
Ready to claim"]
T4 -- "no further fill
until claimed" --> Cap["T=4h+
Bucket capped"]
Cap -- "user claims" --> T0
classDef wait fill:#fef9c3,stroke:#ca8a04,color:#713f12
classDef ready fill:#dcfce7,stroke:#16a34a,color:#14532d
classDef cap fill:#fef2f2,stroke:#ef4444,color:#7f1d1d
class T0,T2 wait
class T4 ready
class Cap cap
```
This design forces a minimum cadence — coming back twice a day is the easy path. Three or more claims per day requires more attention but yields more daily CRS (no "compounding" — just more time inside the 4h window per day).
## Daily calendar
In addition to per-claim rewards, the Bini App offers a **30-day rotating CRS calendar**. Each consecutive day claimed unlocks a bonus. Missing a day breaks the streak.
```
Day 1: Small bonus
Day 2: Slightly bigger bonus
...
Day 30: Largest bonus
Day 31: Reset to Day 1 (new cycle)
Total cycle reward: 48,527,500 CRS
```
The exact per-day curve is back-loaded — most of the cycle reward is in the last 9 days. This rewards consistency.
## Why this design
* **Background mining** — works while you sleep, not just when you tap
* **4-hour claim window** — forces engagement without being demanding (twice a day is enough)
* **Cap at 4 hours** — prevents a "set and forget for a week" play style that doesn't grow the lesson bonus
* **Daily calendar** — rewards consistency, with most reward at the end of the streak
## Time to reach all-lessons-L10
Per the canonical simulation:
| Cadence | Day all lessons L10 |
| ------------------------------ | ------------------: |
| 2 claims/day, no referrals | 109 |
| 3 claims/day, no referrals | 91 |
| 2 claims/day + 100 active refs | 90 |
See [Tokenomics → Simulation](/tokenomics/simulation) for full projections.
## Related
Where the CRS/hour bonuses come from
What CRS spending unlocks
Convert CRS to USBI
Earn from your team's mining