$ORRERIUM · A launchpad built like an orrery.

Set a coin in orbit, then let go of the crank.

Every coin is a body set in orbit in one transaction: priced at a fixed opening cap, its whole supply seated in a single pool position, its path fixed before anyone can touch it. Orrerium only turns the crank.

drag to spin · scroll for crank speed ×1.0 · sample bodies
Chapter I

The gear train.

An orrery is honest machinery: every body moves because a gear forces it to, and the gears are visible. One turn of the crank is one transaction, and three gears turn at once. Scroll, and they turn.

I · THE COINa fixed billion, no ownerII · THE POOLopened at a fixed capIII · THE POSITIONevery coin seated at once⟳ crankscroll to turn
I

An ERC-20 with a fixed billion supply is created at an address mined so it can be the hook of its own pool. Its owner() reads zero in the same block.

II

A Uniswap v4 pool against ETH opens at a fixed dollar capitalisation taken from a signed price reading. The reading expires in minutes and cannot be replayed.

III

Every coin goes into one liquidity position from the opening tick downward. The first buyer meets the full supply, not a sliver of it.

Chapter II

Almanac of fixed things.

Written into the coin, not into a dashboard. An almanac lists what will not change this year; this one lists what will not change at all.

  1. IBirthOne transaction: the coin, its pool, and its only position come into being together.
  2. IIOpening capA fixed dollar capitalisation at the first tick, read from a signed ETH/USD quote that expires in minutes.
  3. IIISupplyA fixed one billion. Nothing is reserved for a team, a presale, or an airdrop.
  4. IVLevyA small fixed share of the ETH side of each swap, stashed for the creator. It cannot be raised.
  5. VKeysThe coin's owner() reads zero from its first block. There is no pause, no blacklist, no tax switch.
  6. VIOrreriumHolds nothing. It is a crank handle: it sets bodies in motion and keeps no key, coin, or position.
Chapter III · sample data

Ephemeris.

The five bodies on the hero wheel, with their rings. They are placeholders so the mechanism can be seen moving; no coin on this page exists yet. The first real body is announced on X before it is set in motion.

PerihelionPERI · ring 22 · 1.90×

the first body set in the Orrerium

sample
LanternmoonLMOON · ring 36 · 1.20×

small, quick, a moon that never strays

sample
BrasswheelBRASS · ring 50 · 0.80×

the slow gear everything else is timed to

sample
CometlineCMT · ring 66 · 0.55×

a long orbit on the outer rim

sample
UmbraUMBRA · ring 82 · 0.38×

almost out of the light, still on the wheel

sample
Marginalia

Notes in the margin.

Is this live?

The site is live; the launch contracts are not published yet. Every table on this page is a sample and is labelled as one.

Which chain?

Robinhood Chain, Uniswap v4 pools. The coin itself is the hook of its own pool.

Can the creator pull liquidity?

The position is an ordinary Uniswap v4 NFT held by its creator, same as any pool. Orrerium does not lock it and does not claim to.

What does Orrerium earn?

A fixed slice of the levy on each coin, written into the coin at birth. There is no listing fee.