Live signal
— bags out there
Latest find
Waiting for the first find…
Rewards held by contract —
— bags out there now·block —

Leave a cairn.Someone will find it.

Launch a coin on Pons and hide part of it across the real world. The rewards wait in a verified contract until a hunter walks within 10 km. Whatever nobody finds is burned.

Coins launched
—
Bags found
—
Claims refused
—
Platform fee
0%
Rewards held by
contract
01 One transaction

Launch, fund, lock.
One signature.

Your coin is created on Pons and its very first buy goes straight into the CAIRN vault, before anyone else can trade. Your own share is bought right after. If any step fails, none of it happens.

  • RoutePons launchAndBuy
  • Snipe tax on these buysexempt
  • CAIRN feenone
02 Nobody picks

The places come
from the chain.

Each bag's location is computed from the hash of the block that opened the hunt, with open-source code and a frozen map of Earth's land. Not us, not the creator: no one chooses. Run the same code and you get the same dots.

Verify a hunt yourself
03 Found

Walk within 10 km.
Sign once. It's yours.

Your phone records a short location trail. The warden checks it, signs a voucher, and our relayer pays the gas. The contract allows one bag per wallet per hunt, whoever asks.

  • Gas for hunterspaid by CAIRN
  • If we go offlinesubmit your voucher yourself
04 Burned

What nobody finds,
nobody keeps.

Every hunt runs for 7 to 90 days. When it closes, anyone can call sweep() and the contract burns every unclaimed token. Supply shrinks. No wallet receives them, ours included.

Live from the chain

Out there now.

All coins

Latest moves

Full activity →
The vault, in plain words

What the contract lets us do.
And what it doesn't.

The owner can

  • Pause new claims.For emergencies, such as a suspected leak of the warden key. Pausing moves nothing, and burns still happen.
  • Change the warden, slowly.A new warden takes effect only after a public 48-hour delay, so everyone sees it coming.
  • Return tokens sent by mistake.Only the amount above what hunts are owed, checked by the contract itself.

Nobody can

  • Withdraw hunt rewards.There is no function for it. Tokens leave only to a finder or to the burn.
  • Move a bag or resize it.Places come from the block hash. Sizes are fixed when the hunt opens.
  • Stop the burn.When a window closes, anyone can trigger it, even while claims are paused.
  • Charge a fee.There is no fee and no switch to add one.
Honest limits

We'd rather you hear this from us.

  • Location can be faked. A browser cannot prove where you stand. The warden refuses impossible travel, stale readings and coarse fixes, and caps claims per wallet and network, but a determined spoofer can still win sometimes.
  • A bag is worth what its coin is worth. New coins are small; a bag might be worth a dollar today and nothing tomorrow.
  • Places can be remote. Spots are random points on land. Some will be in forests, deserts or ice.
See the live rules and counts
For creators

See your hunt
before you sign.

Every number here is computed with the same curve maths Pons uses. Real values move with your coin's price.

Launch a coin
Tokens in each bag
—
Each bag at launch price
—
Tokens you receive
—
You pay in total
—

Includes the 0.0005 ETH Pons launch fee. Network gas is extra and tiny on Robinhood Chain.

Leave a cairn.