Enter the drop

fan·fare /ˈfan-fer/ n. 1. a flourish of trumpets. 2. the fair fare for fans.

Fans pay 定価retail price.
Scalpers get nothing.

Limited drops with one sealed bid per verified human, fan units raffled at the retail price (定価), and one fair price for the rest.

Limited editionNo.001/003
METAL KEYCHAINHOLOGRAPHIC ENAMEL, 60 MM限定
Retail (定価)
¥3,000
Physical item
ships on claim

Sold out in 30 seconds. Resold at 5x by lunch.

Brands price limited editions low on purpose: the retail price (定価) is how fan culture says thank you. But when ten times more people want a figure than there are figures, first come, first served turns into a race, and bots are faster than people.
Limited drop · 12 units · retail (定価) ¥3,00000:00 opens
¥14,000
¥15,800
¥18,000
¥14,900
¥21,000
¥16,500
¥15,200
¥19,400
¥13,800
¥17,500
¥16,000
¥20,000

Scalping is a pricing bug.

The gap between the retail price (定価) and what fans will really pay is real money, and somebody collects it. Today that's whoever refreshes fastest. We give it to the brand and keep the retail price for fans.
TodayFanfare
retail¥3k
To the scalper
the gap, up to ¥12,000 a unit
¥0retail price (定価) ¥3,000 · what fans will actually pay ≈ ¥15,000
  • 先着
    First come, first served
    A speed contest. Bots win.
  • 抽選
    Lottery
    A ticket contest. Multi-account farms win.
  • 値上
    Just raise the price
    Fans get priced out, and the brand looks greedy.

Start with Vickrey.

In a Vickrey auction (sealed, second-price) the highest bid wins, but the winner pays the second-highest bid. It won William Vickrey the 1996 Nobel prize in economics.
  • ben
    sealed
  • dai
    sealed
  • aiko
    sealed
  • chen
    sealed
price = 2nd-highest bid

Four collectors seal one bid each for a single item. Nobody sees anyone else's.

  • Bid your true value

    The best move. You win whenever you value the item most, and you always pay less than you bid, because the price is the next bid down. Highest chance of winning, lowest possible payment.

  • Bid too low

    Doesn't lower the price you'd pay; it only lowers your chance of winning. You can lose an item you'd happily have paid the winning price for.

  • Bid too high

    Overbidding just to win is a gamble: if the runner-up also bids high, you pay their bid, which can be more than the item is worth to you.

The mechanism

Fan-First Vickrey

One human. One sealed bid. One fair price.

Vickrey's second-price rule, scaled up to a whole drop, with fans raffled in first.

一

Prove you're one human

World ID gives each person exactly one sealed bid. A bot farm gets one bid, same as you.

二

Fans first, at retail (定価)

Some units are raffled at the retail price among everyone who bid at least that much. A bigger bid doesn't improve your odds.

三

One price for the rest

The other units go to the highest bids, and every winner pays the same price: the highest losing bid. That's the second-price rule for many units.

Watch a drop clear.

Eight fans, five units, one bot farm. Tap a step, or let it play.
bot-farm × 50 walletsrejected: one human
  • kaito
    sealed
  • mika
    sealed
  • ren
    sealed
  • sora
    sealed
  • yui
    sealed
  • haru
    sealed
  • nao
    sealed
  • toma
    sealed
retail (定価)
clearing price
封Seal

Eight fans each send one sealed bid. The bot farm tries fifty wallets, but it's one human, so World ID lets in one bid.

fan raffle, pays retail (定価)
auction winner, pays clearing price
didn't win, full refund

Why raffle first?

If the raffle were among the auction's losers, bidding low on purpose would buy you a lottery ticket. Drawing fans before the auction means your bid never changes your raffle odds, so the honest bid stays the best bid.

Why one price?

It's the second-price rule for many units: every winner pays the highest losing bid. The market sets the price, and your own bid only decides whether you win.

It only works with one bid per human.

Uniform-price auctions have one known flaw: someone who wants many units bids low on the extras to drag the price down on all of them. Give each person one bid and the flaw disappears. With one unit each, the uniform price is the Vickrey price, and the raffle can't be farmed. World ID is what makes the auction honest.
One person, many walletsWorld ID off

24 raffle entries for one person, plus 23 extra bids placed low on purpose to drag the price down for everyone.

So what's left for a scalper?

Today
Buys at
¥3,000, the retail price (定価)
Resells to
≈ ¥15,000 on Mercari
¥12,000
margin per unit, times every bot account
Auction unit
Buys at
¥6,000, the clearing price
Resells to
Everyone who'd pay more already won one
≈ ¥0
margin: the price already is the market price
Fan unit
Buys at
¥3,000, by raffle
Resells to
One per human, drawn blind
1 flip
at most, by one lucky fan. Bots can't farm the raffle.

We don't ban resale. We leave it nothing to profit from.

A bid is a swap.

The auction lives inside a Uniswap v4 hook. Bidders swap ETH into the drop's pool through the standard Universal Router, and the hook turns that swap into a sealed, escrowed bid. Refunds and payouts settle through the PoolManager.
Your wallet
one execute() call
Universal Router
V4_SWAP, unchanged
PoolManager
Uniswap v4 core
AuctionDrop hook
beforeSwap
  • →Checks the World ID voucher bound to your wallet
  • →Takes your whole deposit as ERC-6909 claims
  • →Stores your sealed commitment, never the amount
  • →Nets the swap to zero, so no ordinary trade gets through

For anything that sells out.

Anime figures and collabs

Evangelion and Gundam anniversary figures, Gunpla exclusives, studio collabs: the drops that vanish in seconds and reappear at 5x.

Designer toys

BE@RBRICK collabs and numbered art toys.

Sneakers

Limited colourways without the bot queue.

Live tickets

Front rows priced by fans, not resale sites.

Card boxes

Booster boxes and promo sets, one per person.

The drop is live on Sepolia.

Verify with World ID, seal a bid, and watch it clear.