VAULT COINS

ROBINHOOD CHAIN · 4663 / 3,333

A COLLECTION OF 3,333 MINTED COINS

A coin that is
worth something.

Half of the price of every coin sold stays inside the contract. Once the mint has closed or sold out, burn the coin and take your share.

Most collectibles are worth whatever the next person will pay. This one has a floor underneath it. Half of the price of every coin sold stays inside the contract, in a vault nobody can open — not the artist, not the owner, not us. Once the mint has closed or sold out, burn your coin and the contract pays you your share of that vault.

  1. IN THE VAULT ETH
  2. ONE COIN CAN CLAIM ETH
  3. MINTED of 3,333

Every number on this page is read from the contract in front of you. Nothing here is a promise about the future — it is the balance right now.

TWO KINDS OF COIN

Same coin. One of them
carries money.

Free coins are real coins. Same art, same rarity, same collection — they just do not carry a share of the vault. Paid coins are Backed: half of what you paid is sitting in the contract with that coin's name on it, and you can take it out once the mint has closed or sold out.

BACKED

Bought · 0.0002 ETH

Carries an equal share of the vault. Look at the rim — it is brighter — and at the mint mark under the denomination. That mark is the coin telling you it has money behind it.

Share of the vault
ETH
How many exist
alive

UNBACKED

Free · one per listed wallet

No mint mark, no share, and it can never be turned into one — that is fixed at the moment it is minted and it survives every transfer. It is still the same collection, and it still has whatever the market thinks it is worth.

Share of the vault
none
How many exist
of 1,111

The two pictures above are the same coin — #25, from the collection — rendered in both classes. Nothing else about it changes.

HOW THE VAULT FILLS

Four things happen.
That is the whole design.

A diagram of where the money goes THE VAULT YOU PAY 0.0002 ETH HALF TO THE VAULT HALF TO THE STUDIO SOMEBODY RESELLS IT 10% ROYALTY HALF TO THE VAULT THE REST TO THE STUDIO THE WHOLE VAULT DIVIDED BY EVERY BACKED COIN ALIVE WHAT ONE COIN CAN CLAIM YOU BURN THE COIN THE CONTRACT PAYS YOU
  1. 01

    You buy a coin. Half the money stays.

    The price is 0.0002 ETH. Exactly 0.0001 ETH of that never leaves the contract — it is booked into the vault against your coin, in the same transaction. The rest goes to the studio, like any mint.

    It is a fixed amount, not a percentage. If the price is raised later, every coin bought before it still holds exactly the same deposit — a later buyer can never dilute an earlier one.

  2. 02

    Somebody resells it. The vault takes a cut.

    The collection charges a 10% royalty on marketplace sales, and the address that receives it is the contract itself. Half of every royalty that lands joins the vault. The other half goes to the studio.

    Royalties arrive as ETH, as wrapped ETH and as USDG. The contract unwraps the wrapped ones itself, so all of it ends up as one number. Anybody can press the button that splits it — it is not the owner's job.

  3. 03

    The vault, split evenly, is the floor.

    Divide everything in the vault by every Backed coin still alive and you have what one coin is worth at minimum, right now: ETH. Nobody has to agree to that price. The contract will pay it.

    When somebody burns a coin, the money they take leaves — but so does their coin. The share for everybody left is never smaller afterwards. Royalties only push it up.

  4. 04

    Burn it, and take your share.

    Once the mint has closed or sold out, one transaction does it. The coin is destroyed and the contract sends you ETH. No listing, no buyer, no haggling. You can do it with one coin or with all of them at once.

    There is no owner withdrawal in this contract. The only three ways money leaves are: a holder claiming, the studio's half of a mint, and the studio's half of a royalty. The vault itself has no door.

THE VAULT, LIVE

Read it yourself.

Everything below comes straight off the contract at the address at the bottom of this page. No database, no dashboard — just the chain.

  1. IN THE VAULT ETH
  2. BACKED COINS ALIVE the divisor
  3. ONE COIN CAN CLAIM ETH
  4. CLAIMING IS opens when the mint closes
THE VAULT OVER TIME Built from the contract's own events — every deposit, every royalty split, every claim.

Reading the chain…

BURN & CLAIM

Turn a coin back
into money.

Connect the wallet holding your coins. The panel lists the Backed ones, tells you what each is worth this second, and — when you say so — burns the ones you picked and sends you the exact amount it quoted. It can do that once the mint has closed or sold out; until then it shows you the share and holds the button.

THE NAMED TEN

Ten coins are
not like the others.

Ten coins are struck in a metal that exists exactly once — Molten Gold, Obsidian, Meteorite, Chrome, Jade, Ruby Glass, Circuit, Solar, Ice, Ancient. They are not built from the rarity table below; each one is its own drawing. Whether a legend is Backed or Unbacked depends only on how it was minted, like every other coin.

    WHAT IS IN THE SET

    Seven slots.

    PLAIN ANSWERS

    The awkward questions,
    answered first.

    Where is the money, exactly?

    Inside the collection's own contract, at the address in the footer. Not in a multisig, not in a treasury wallet, not with us. You can read the balance yourself on the explorer, and it will agree with the number at the top of this page.

    There is no owner withdrawal function. The owner can point future revenue at a different studio wallet, set the price, open and close the mint, and set the artwork URL. The owner cannot move a single wei of the vault. That is not a policy — it is that the function does not exist.

    What happens to my share if the vault doubles?

    It doubles. Your share is the whole vault divided by the number of Backed coins still alive, and nothing else. If royalties bring in more money, every living Backed coin is worth more, without you doing anything.

    The reverse is not possible in the same way: minting a new Backed coin adds its own deposit at the same time as it adds itself to the divisor, so the share cannot be watered down by new mints.

    Why would anybody burn a coin at all?

    Mostly they should not — and that is the point. If a coin is worth more on the open market than its share of the vault, selling beats burning, and the vault just sits there as the floor nobody has to take.

    Burning is for the day the market is quiet, or you want out now, or the vault has grown past what anybody is offering. The option costs you nothing until you use it.

    Why can't I claim while the mint is running?

    Because it would be free money at everybody else's expense. Suppose royalties push the share above what a coin costs to mint: anyone could mint a coin and instantly burn it for more than they paid, over and over, and the difference would come straight out of the vault belonging to the people already holding.

    So claiming stays shut until the mint is switched off, or the collection sells out. After a sell-out it is open permanently. The panel above says which of those it is waiting for.

    Can somebody just send the vault money?

    Yes, and it counts. Anything sent to the contract that is not already accounted for is treated exactly like a royalty the next time the split button is pressed: half of it joins the vault, the rest is credited to the studio. There is nothing special about the sender.

    Can the price change? Does that change my deposit?

    The price can change. Your deposit cannot. The amount that goes into the vault per coin is a fixed number set at deployment0.0001 ETH — not a percentage of whatever the price happens to be. The contract refuses any price below it, so a coin can never be sold for less than the money it puts in the vault.

    What about royalties that arrive as something other than ETH?

    Marketplaces on this chain pay royalties in ETH, in wrapped ETH, and in USDG. The contract unwraps wrapped ETH itself before splitting, so it is indistinguishable from a plain one. USDG is tracked as a second pot and paid out alongside the ETH when you claim — the panel quotes both.

    No USDG pot is configured on this deployment yet, so every claim is paid in ETH.

    What is the split of the collection?

    3,333 coins in total. 1,111 free and Unbacked, gated to a snapshot list, one per wallet. 2,222 paid and Backed, at 0.0002 ETH each, nine per wallet at most. Once the free allocation is gone, everything left is paid — and therefore everything left is Backed.