How the pad works.

Overview

COIN A is an L1-style launchpad on pump.fun, on Solana. Instead of SOL, every coin launched here trades against $A or against a coin that is itself in $A's family. Each coin carries a tax. The pad claims it on a fixed clock and spends all of it: 90% on buying the coin back and burning it, 10% on burning its parent. No one keeps anything.

The family tree

• Generation 0 — $A. The root. Launching soon — the contract address is published here the moment it is live.
• Generation 1 — children of A. Paired with $A. Their tax is paid in $A, and their parent burn burns $A.
• Generation 2+ — grandchildren and beyond. Paired with a child. Their tax is paid in that child, and their parent burn burns the child.

Every generation burns the one above it, and every buyer of a deep coin has to go through the coins above it to get there. Volume anywhere in the tree flows up to $A. The Family page shows the live tree.

The tax

pump.fun lets a coin carry its own creator fee when it is paired with a token instead of SOL. Coins on COIN A launch with a 1% tax, on top of pump.fun's own fee (2.25% all-in). Buys and sells both pay it, on the bonding curve and on PumpSwap after graduation. It is fixed at creation and is paid, in the parent, to the coin's engine wallet.

The cycle

One clock runs every coin. Every 3 minutes, for each coin:

1. The engine wallet claims 100% of the unclaimed tax (paid in the parent).
2. 90% is spent on one buy of the coin, which is burned.
3. 10% — parent tokens — is burned directly, no swap.

A pot under the minimum waits and joins the next cycle. A step that fails is retried on the next one, because the funds are still in the engine wallet. The ledger shows rolled-over and failed cycles too.

The parent burn

The tax already arrives as parent tokens, so the 10% is not sold or swapped. It is burned straight out of the parent's supply. A child of A burns $A. A grandchild burns its parent, which in turn burns $A with its own tax.

• $100 of tax → $90 buys the coin back and burns it, $10 of the parent is burned.
• $1,000 of tax → $900 and $100.

Why $A is the L1

• Buy pressure. Every coin in the tree is bought with $A, directly or through its parents. Dev buys are routed SOL → $A → down the tree.
• Less float. $A paid into children sits in their curves and pools. Graduated liquidity is locked for good.
• Burned supply. Every child of A burns $A every cycle it has volume.

Launching a coin

On the deploy page, connect a Solana wallet, pick a parent ($A or any live coin of the family), add a name, a ticker and a logo, and send the launch SOL. That covers the pump.fun create and a small permanent gas reserve for the coin's engine wallet. An optional dev buy is paid in SOL, routed into the parent, bought right after the create and sent to your wallet. If a launch fails, the deposit is refunded.

Engine wallets

Every coin gets a fresh wallet that is its creator on pump.fun. That is what makes the tax claimable by the pad and by nobody else. The key is encrypted at rest and is only used to claim, buy and burn. It needs a little SOL for fees; if it runs low the cycle is skipped with a note until someone tops it up.

Ledger

Every cycle of every coin is a line on the ledger with its claim, buy, burn and parent-burn transactions. An empty window does not mint a placeholder burn.

Glossary

• $A — the L1, the root of the family.
• Parent — the coin a coin is paired with and pays its tax in.
• Generation — how many steps below $A a coin sits.
• Cycle — one claim, buyback, burn and parent burn, every 3 minutes.
• Engine wallet — a coin's creator wallet, run by the pad.

Important notes

This site explains the product. Buybacks depend on trading volume; no volume means no tax and no burns. Digital assets can lose value. COIN A is not affiliated with Solana Labs or pump.fun. Nothing here is financial, legal, or tax advice.