How HOLD LINE works
HOLD LINE is a Solana launchpad built around three ideas: discipline (anti-paper-hands), liquidity that stays (locked by code) and fees that flow (immutable, public routing).
The life of a token
- Launch. A creator picks a supply, a graduation threshold and the discipline rules (cooldown and early-exit fee). All tokens are minted at once into the bonding curve. The mint authority is revoked, there is no freeze authority and the metadata is immutable.
- Bonding curve. Traders buy and sell against a constant-product curve with virtual reserves. The first seconds form a launch window with a per-buy cap and a decaying extra fee so bots cannot take the curve in one block.
- Graduation. When the SOL in the curve reaches the threshold (default 85 SOL), anyone can graduate the token. The remaining supply and the SOL move into a LINE AMM pool and that liquidity is locked permanently. Price continuity is exact: the pool opens at the curve's final price.
- LINE AMM. Trading continues on a constant-product pool. Part of every fee goes to liquidity providers; the rest flows through the fee router like curve fees did.
What is enforced on-chain
| Rule | Enforced by |
|---|---|
| Cooldown & early-exit fee | Token-2022 transfer hook + launchpad programs |
| Launch rules immutable | Launch account written once at creation |
| Graduation liquidity locked | Position owned by the launch PDA, PERMANENT_LOCK |
| Creator Liquidity Support locked | LP position with an unlock timestamp |
| Fee routing | Fee-router route account, configured at creation |
What is not promised
Locked liquidity, buybacks and burns are mechanisms. They do not guarantee any price, liquidity, market cap or return.