HomeBinderRecent
LogHow it worksVerify
Every claim on chain opens one pack.
The highest card any claim has produced in the window this page reads.
pump.fun pays creator fees on every trade. Every few minutes they get claimed, and that claim is a transaction anyone can look up.
That transaction's signature is the seed. Four cards fall out of it, the same four for everyone who runs the numbers.
Every card lands in the binder with its value, its serial and the claim it came from. More volume, more fees. More fees, more packs.
Every card pulled in the window this page reads, newest first.
One row per claim. Open a row to see the four cards it produced.
The raw claim feed, straight off the chain. These signatures are the seeds.
| # | SIGNATURE | SLOT | TIME | CARDS | VALUE | TOP PULL |
|---|
pump.fun added packs. We made the coin rip them. Every few minutes the creator fees get claimed, and every dollar of it rips packs. Nothing about the result is decided here — the claim transaction decides it, and anyone can check.
A pack's seed is the base58 signature of the claim transaction. The four cards come out of a FNV-1a hash of the card's index and that signature, run through a 32-bit avalanche so neighbouring indices land nowhere near each other — a plain function with no key and no secret in it. Run it on the same signature and you get the same four cards, every time, on any machine.
The claim signatures, their slots and their block times come from a Solana RPC node, live. They are real transactions and every one of them links out to an explorer.
The cards, their rarities, serials and values are computed here from those signatures using the formula above. Nothing is stored on a server and nothing is handed to you that you cannot recompute.
A card's value is the set's own scale, drawn from the seed inside the band its rarity sits in. It is what the card is worth in the binder — not a price, not a payout, and not a claim that anything is owed to anyone.
A node hands back the most recent signatures, not all of them. The counters on this page are for the claims in that window, and the page says how many that is rather than implying it is the whole history.
Re-roll any pull yourself. Paste a claim signature and the same four cards come back.
The re-roll runs on the signature alone. It does not ask the chain for anything and it does not look the pack up anywhere — it recomputes it. “Check it on chain” is the separate step: it asks a node whether that signature is a real transaction and what slot it landed in.