Documentation

How Backstop works

Backstop is a refundable launchpad on Robinhood Chain. You bond ETH toward a fixed cap and can pull it back out any time before the token graduates. When the cap fills, 100% of the raise seeds a Uniswap V4 pool and the token goes live. If the cap is missed, everyone gets 100% back.

The bond phase

Every launch has a hard cap (the target raise) and a deadline. During the bond phase:

  • Bond ETH toward the cap. You are not buying tokens yet — you hold a refundable position.
  • Refund any part of your bond at any time before graduation. Your ETH is yours until the moment the token graduates.
  • No wallet can bond more than its per-wallet cap (3% of the token supply), so a few whales cannot buy up the launch.
  • An optional final-push lock can pause refunds once the raise passes 90%, so nobody can yo-yo the finish line. It auto-releases if the cap is not hit within 12 hours.

Graduation

When bonds reach the cap, anyone can call graduate. The raise (minus a 1% protocol fee) is paired with 50% of the token supply and deposited into a locked Uniswap V4 native-ETH pool. Everyone bonded at the same price — there is no bonding curve and no early-buyer advantage.

Claiming your tokens

After graduation you claim your allocation, capped at 3% of supply per wallet:

  • Base share — a pro-rata slice of the 45% bonder pool, by how much ETH you bonded.
  • Loyalty bonus — a slice of the 5% loyalty reserve, weighted by bond-seconds (how much and how early you bonded, and how long you held it).

Refunds

Backstop is trustless because your ETH is always recoverable until graduation:

  • Before the deadline — refund all or part of your bond any time (except during a final-push lock). A creator may set a small 0% or 1% refund fee.
  • If the cap is missed — the launch fails and every bonder reclaims 100% of their ETH, with no fee.

Tokenomics

  • Supply: 1,000,000,000 tokens (18 decimals), fixed. No mint, owner, pause, or blacklist.
  • Split: 50% seeds the LP · 45% to bonders (by ETH) · 5% loyalty reserve (by bond-seconds).
  • Per-wallet cap: 3% of supply, enforced at both bond and claim.
  • Target range: 2–10 ETH · bond window: 7 days.

Fees

  • Protocol fee: 1% of the raise, taken once at graduation.
  • Trading fee: the graduated V4 pool charges 1% per trade. Those fees are swept, the token side sold to ETH, then 70% paid to the token's creator and 30% to the protocol treasury. Creators claim their balance to their wallet.
  • Refund fee: 0% or 1%, chosen by the creator, charged only when a bonder refunds before graduation.

Contracts

Robinhood Chain (id 4663). All contracts are open source and verified on the explorer.

BackstopFactory
explorer ↗
BackstopRouter
explorer ↗
V4 PoolManager
explorer ↗
V4 StateView
explorer ↗
V4 Quoter
explorer ↗

The liquidity deployer (which custodies each pool and routes creator fees) is readable on-chain via factory.liquidityDeployer(). Each launched token is a fresh BackstopToken, verified automatically by matching bytecode.

Risks

Backstop is non-custodial software provided as-is, with no warranty. Smart contracts carry inherent risk; tokens launched here are created by third parties and may lose all value. Nothing here is financial advice. Only commit funds you can afford to lose, and do your own research.

Launch a token