# introduction

## For Creators

* ✅ **Zero-code token launch** — pick name, ticker, and image. Done in 30 seconds.
* ✅ **0.167% rebate on every trade** — paid direct to your wallet, trade by trade
* ✅ **10 KUB graduation bonus** — paid automatically when your token reaches escape velocity
* ✅ **On-chain provenance** — your wallet is recorded forever as the creator
* ✅ **Image stored on-chain** — base64 in the token contract, no external CDN needed
* ✅ **Anti-spam fee** (0.1 KUB to create) — ensures real creators, filters bots

## For Traders

* ✅ **Fair entry** — bonding curve is transparent math; the earlier you are, the cheaper
* ✅ **Slippage protection** — `minTokensOut` / `minKubOut` on every trade
* ✅ **Graduation transparency** — you know exactly when a token will graduate (progress bar)
* ✅ **MEV-resistant AMM open** — 10-block cooldown at graduation kills sandwich bots
* ✅ **Excess refund** — if you try to over-buy past the graduation cap, excess KUB is refunded same tx
* ✅ **Live chart** — price history, trade feed, bonding curve progress, all real-time

## For Builders

* ✅ **Public verified ABIs** — read tokens, prices, liquidity, fees programmatically
* ✅ **Immutable contract addresses** — integrate once, never break
* ✅ **No special API keys or rate limits** — pure RPC calls to Bitkub Chain
* ✅ **Event logs for indexers** — `TokenCreated`, `TokensBought`, `TokensSold`, `Graduated`
* ✅ **Standard ERC-20 tokens** — compatible with every wallet, DEX, and aggregator

## For the Ecosystem

* ✅ **LP permanently sealed** — tokens can't be rugged after graduation
* ✅ **LP fees compound in pool** — depth grows over time, reducing slippage for everyone
* ✅ **No creator trading advantage** — creators don't get a pre-buy, no sniper loopholes
* ✅ **Open source on-chain** — every contract verified on Kubscan

## Technical Highlights

| Feature                  | Durianfun                                              |
| ------------------------ | ------------------------------------------------------ |
| Curve math               | Constant-product (x·y=k) with virtual reserves         |
| Post-grad AMM            | Sealed constant-product AMM with LP-compound fee       |
| MEV protection           | 10-block cooldown post-grad                            |
| Gas-grief protection     | All fee transfers capped at 50k gas (audit-patched)    |
| DOS protection           | Creator reward fallback at graduation (audit-patched)  |
| Fee cap                  | Hard 1.167% ceiling on bonding fees (cannot be raised) |
| Upgradeability           | **None** — contracts are immutable forever             |
| Admin emergency controls | Pause new creations (existing tokens unaffected)       |


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