How works
The mechanism, the costs, and where every lamport goes. No tiers, no hidden cut.
What BullPrint is
BullPrint is a launchpad for pump.fun coins. It does not run its own bonding curve and does not hold your funds. Every coin created here is a genuine pump.fun token on Solana mainnet, tradable anywhere pump.fun coins trade, indexed by every terminal that indexes them.
One thing is different, and it is the entire product: the contract address ends in BULL. Not a badge on a website, not a label in a database. The mark is in the address itself, and it stays there forever.
The mark
A Solana address is the public half of a keypair, so an address ending in specific characters cannot be requested. It has to be found by generating keypairs until one lands. For a four-character ending that is one hit in 58⁴ = 11,316,496 tries.
BullPrint solves this ahead of time with a CUDA grinder running at roughly 285 million candidate keypairs per second. The addresses are ground in advance, verified, encrypted and held in a pool. When you launch, one is drawn and consumed.
Nobody chooses their address, and there is no premium tier for a prettier one. The mark means something only because every coin launched here carries it.
How a launch works
- 1Connect a walletAn address is set aside for you the moment you connect, before you fill in a single field. It is held for ten minutes and returns to the pool if you walk away.
- 2Describe the coinName, ticker, image, description and socials. The image and metadata are pinned to IPFS through the same endpoint pump.fun uses, so the coin renders correctly everywhere.
- 3Set the dev buyMinimum 0.1 SOL. Your own wallet buys at the launch price, in the same transaction that creates the coin, before anyone else can trade.
- 4Sign onceThe server builds the transaction and signs it as the mint, then hands it to your wallet for the payer signature. The mint key never reaches your browser.
- 5The coin is liveOnce the mint account is confirmed on-chain, the coin appears in the feed and its address is revealed to you for the first time.
What it costs
Three numbers leave your wallet, and the launch screen shows all of them before you sign. The network cost is measured by simulating your exact transaction, not quoted from a table, so it stays honest when pump.fun changes account sizes.
| Item | Amount | Goes to |
|---|---|---|
| Dev buy | 0.1 SOL minimum | the coin, for you |
| BullPrint fee | 2.5% of dev buy | the burn treasury |
| Network cost | ~0.012 SOL | Solana rent and fees |
| pump.fun swap fee | 1.25%, inside the dev buy | pump.fun and creator vault |
The network cost is rent for the accounts a launch creates: the mint, the bonding curve, the metadata and the token accounts. None of it reaches BullPrint, and most of it is recoverable rent held by the accounts themselves.
Where the money goes
BullPrint is set as the coin creator on pump.fun. That single field is the entire business model, and it is worth being precise about what it means.
pump.fun pays a share of every trade to whoever is recorded as the creator of that coin, in any venue, for as long as the coin trades. On BullPrint that share is collected and burned into $ANSEM rather than kept.
| Source | Rate | Destination |
|---|---|---|
| Creator fee | 0.30% of every trade | buy back and burn $ANSEM |
| Platform fee | 2.5% of the dev buy | burn treasury and operations |
| Trading fee on this site | 0% | nothing is charged |
This is stated on the launch screen rather than buried in terms. You give up the creator fee stream; in exchange the launch is free of any charge from us beyond the fee above, and the address carries the mark.
Creator fees follow a power law: most coins earn close to nothing and a few earn a great deal. The 2.5% on the dev buy exists so the treasury has a deterministic income that does not depend on which coin happens to run.
pump.fun fees
These are read live from the pump.fun fee program on-chain, not copied from an article. Creating a coin costs nothing beyond network rent; the fee is on trading.
| Phase | Total | Split |
|---|---|---|
| Bonding curve | 1.25% | 0.95% protocol · 0.30% creator |
| Graduation | 0.015 SOL | pool migration |
| After graduation | 1.25% down to 0.30% | scales with market cap |
Why $ANSEM
$ANSEM is The Black Bull, the token of a community whose whole symbol BullPrint shares. Directing every creator fee into buying and burning it makes each launch here permanently remove supply from that token.
BullPrint is a complement to that ecosystem, not a rival to it. We do not issue $ANSEM, control it, or speak for it. The burn is a mechanism, not a promise about price, and every burn is a transaction you can open on Solscan from the burn ledger.
Custody and trust
BullPrint never holds your funds. You sign every transaction in your own wallet, the dev buy tokens land directly in it, and there is no deposit step anywhere in the flow.
The mint keypair is decrypted on the server, used for exactly one signature, and dropped. It never reaches your browser: this matters because anyone holding a mint key before the create instruction lands could front-run it and take the address.
The address pool lives in a database schema that is not exposed to the public API, and each secret is sealed with authenticated encryption under a key held only in the server environment. A database compromise on its own yields nothing usable.