Robinfun — Whitepaper

RobinFun is a permissionless, fair-launch token launchpad built natively for Robinhood Chain. Anyone can deploy a token in a single transaction. Every token starts trading immediately on a transparent bonding curve — no presale, no team allocation, no insider rounds. When a token reaches its graduation threshold, it automatically migrates to a public Uniswap market with its liquidity permanently burned.

The result is a level playing field: the price you see is the price everyone gets, the curve is the same for every buyer, and liquidity can never be pulled.

Traditional launches concentrate supply and information with insiders. A bonding curve replaces that with a deterministic pricing function: tokens are sold from a smart contract at a price that rises as more are bought and falls as they are sold back. There is no order book to spoof and no liquidity to rug — price discovery is mechanical and on-chain from the very first trade.

RobinFun uses a constant-product curve with virtual reserves (the same model that powers the most battle-tested launchpads). The contract holds a token reserve and tracks a virtual ETH reserve; buys move along the curve x · y = k, so each purchase raises the price and each sale lowers it, smoothly and predictably.

Targets are denominated in USD and snapshotted to ETH at the moment a token is created, so creators get consistent dollar milestones regardless of where ETH trades.

Every token launched on RobinFun shares the same fixed, transparent parameters:

Change nothing and your token launches normally: 1,000,000,000 supply, no staking, 70% curve / 30% LP — exactly as before.

Or pick any total supply from 10,000 to 1,000,000,000. Market cap is invariant to supply, so every choice starts at the same $4,000 cap and graduates at the same ~$44,000 — only the price per token changes.

Optionally enable staking (just on / off). When on, the split becomes 70% curve / 20% LP / 10% staking (vs 70/30 with none). The 10% funds a per-token staking pool at creation and streams over 60 days — so stakers earn rewards while the token is still on the bonding curve and after graduation.

• Each staker picks their own lock — 14, 30, 45 or 60 days — and can only withdraw or claim once it expires. Longer lock = bigger reward share (weight = amount × lock days), so a 60-day lock earns ~4.3× a 14-day one.
• Enabling staking opens the Uniswap pool a bit higher (~$45k) with a thinner 20% LP; the curve, the $4k start and the ~$44k graduation are unchanged.
• Holders stake on the token's page: deposit the token, choose a lock, and claim principal + rewards once the lock ends. You can hold several positions at once, each with its own lock.
• Every token still ends in …4663 and is auto-verified on the explorer.

Once the curve fills — i.e. $9,300 (≈ 5.74 ETH) has been raised, which corresponds to a market cap of ≈ $44,127 — the token graduates. Of the ETH raised, $9,000 is paired with the 300,000,000 tokens reserved for liquidity and deposited into a Uniswap V2 pool, and the remaining $300 funds the protocol treasury. The resulting LP tokens are sent to a burn address — 100% of the liquidity is locked forever. From that point on, the token trades freely on the open market and can never have its liquidity removed.

Graduation is finalized by a permissionless on-chain call and is hardened against front-running: liquidity is added directly to the pair so that no one can capture or block the migration.

RobinFun charges a simple, symmetric 1% trade fee — 1% on every buy and 1% on every sell. That fee is split evenly:

The fee applies both before and after graduation — on the bonding curve and on the Uniswap market — so creators keep earning from their token's volume for its entire life, and the protocol is sustainably funded. The fee is identical for every token.

Fees are always paid in ETH. On the curve, the fee is taken directly in ETH. On the Uniswap market, the fee accrues in the token contract and is automatically swapped to ETH once it's worth at least $5, then sent to the creator and treasury 50/50 — so both sides always receive ETH, never illiquid tokens.

Beyond each launchpad token's own staking, the main ROBINFUN token has a dedicated revenue-share pool: stake ROBINFUN and earn native ETH funded by the protocol's fee revenue.

The treasury periodically sends a share of collected fees (in ETH) to the staking pool and arms a 30-day reward stream. The ETH is distributed continuously, pro-rata to each position's weight — nothing pays out instantly; it drips over the stream.

• Lock 14 / 30 / 45 / 60 days. Weight = amount × lock days, so a longer lock earns a bigger share (a 60-day lock ≈ 4.3× the per-token rate of a 14-day one).
• Rewards are paid in native ETH (Robinhood Chain) — the same asset the fees are collected in. No wrapped token, no bridge.
• Multi-position: a wallet can hold many locked positions at once (up to 100), each independent.
• Claim your ETH (getReward) or withdraw principal + ETH (withdraw) once your lock expires. Your staked ROBINFUN always comes back in full.

Staking contract: 0x2cE2B3B7bC9A0093681Fc280b1bF77C30DB3f1a3

A token's image, description and social links (website, X, Telegram, Discord, GitHub, GitBook) are not frozen at launch — the creator can update them anytime from an Edit button on the token page.

• Creator-only. The Edit button appears only when the connected wallet is the token's on-chain creator. Each change is authorized by a fresh wallet signature (no gas) and verified server-side against the creator recorded on-chain.
• What's immutable stays immutable. Name, symbol, total supply, creator and fee recipient are fixed at creation and can never be changed — only the descriptive metadata above.
• Anti-defacement. Every edit is signed with a short-lived timestamp, so a captured signature can't be replayed later to alter a token you no longer control.

Not the creator? If a project is abandoned, control can first pass to the community through a takeover (next section) — the new owner then manages the same metadata.

A token's creator fee (the 0.5% creator share) is normally paid to whoever launched it. If the original creator goes inactive, the community can request a Community Takeover to redirect that creator fee to a new community-run wallet.

The process is deliberately gated and transparent:

• Anyone can submit a CTO request from the token's page, providing the new fee destination address and their contact links (Telegram / X). It requires a one-time wallet signature — no gas — as anti-spam.
• Every request is reviewed manually by the RobinFun team. The request itself grants no rights and changes nothing on its own.
• Only on explicit team approval is the creator fee reassigned to the new wallet on-chain. That action is owner-restricted at the contract level — no one else can trigger it.

The protocol treasury share is unaffected. CTO applies to tokens launched on the current factory; legacy tokens keep their original, immutable fee recipient.

Every token has a livestream on its page. The token's creator can go live directly from the browser.

Only the creator broadcasts video. Viewers watch and do not appear on camera or share a microphone; the audience is shown as a live viewer count.

Each stream has a live chat:

• Only wallet-connected users can post (a one-time off-chain signature, no gas). Anyone can read.
• Chat history is kept and shown on the page.
• The creator can delete messages and ban wallets from their stream.

The contracts are covered by an extensive test suite, including adversarial tests and a solvency invariant that fuzzes thousands of create/buy/sell/graduate sequences. Key protections include:

• Per-curve ETH accounting — one token's funds can never be spent by another.
• Reentrancy guards and checks-effects-interactions throughout.
• Graduation decoupled from trading, so a DEX hiccup can never freeze a curve.
• Direct-to-pair liquidity provisioning, immune to pool-seeding attacks.
• Best-effort fee payouts that can never brick trading.

RobinFun runs on Robinhood Chain (an Ethereum L2, chain ID 4663), using ETH as the native gas token. Tokens graduate into the chain's native Uniswap V2 deployment. Everything — creation, trading, graduation — happens on-chain and is verifiable in the explorer.

Every token launched through the current factory is deployed to a vanity address ending in …4663 — the chain's own ID — using CREATE2, so RobinFun tokens are recognizable at a glance in wallets and the explorer.

The launchpad factories are deployed and source-verified on-chain. New tokens launch on the current factory; the legacy factory continues to serve tokens created before it:

• RobinFunFactory (current): (V5) 0xd861cb5DC71A0171E8F0f6586cADb069f3A35E4d
• RobinFunFactory (legacy): (V4) 0x42B1f2Fb09502b66Ae21769b3384a7788d020d73
• RobinFunFactory (legacy): (V3) 0x9A4a94Bd3aF6acF5567A3B22f264E08B0962B8c8
• RobinFunFactory (legacy): (V2) 0xD69A9fDee44a42c8E614128FEda486128cB27222
• RobinFunFactory (legacy): (V1) 0xD952A74C85a2221a7DaB185c62cfD7EBa8C94AFC

RobinFun is experimental software for launching and trading tokens on a bonding curve. Tokens launched on RobinFun are not investments and carry no promise of value. Nothing here is financial advice. Crypto assets are volatile and you may lose everything you put in. Always do your own research and only risk what you can afford to lose.