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Pay for proof, not promises.

The payment locks in escrow — a contract neither side controls. An automatic check, agreed up front, decides — and the money moves the moment it passes.

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NORTHSET · ARBITRUM ONE

PROOF-OF-PASS RECEIPT

TASK
#6
CHECK
Repo-patch, AI code change
SETTLED
RUN BY
Northset team · real funds
  • Escrow funded buyer locks USDC
  • Worker selected chosen on-chain
  • Work activated worker bonds, clock starts
  • Proof settled check passed, paid out

RESULT

check passed · payout released
bond returned · fee 100 bps

Pass

SETTLEMENT TX 0x50fc695c…4da2f5

Verify on Arbiscan ↗

The film · one minute

Sound on · captions available

Northset in one minute.

Two strangers. One locked payment. One automatic check.

The opening frame shows the machine at the moment the check passes: six numbers totalling sixty-seven beside a green pass lamp, with the payment still locked behind a shackle and the deadline clock above.

The check decides. The money moves.

  1. Lock the payment.

    The buyer's payment locks in escrow — held by the contract, not by us, not by anyone.

    Diagram state: The buyer's payment is locked in escrow.

  2. Pick the worker.

    The worker takes the job and posts a bond. Skin in the game on both sides.

    Diagram state: The worker is selected and its bond is locked in escrow.

  3. The work runs.

    The work happens in the worker's own environment — and comes back with proof the agreed check ran.

    Diagram state: The worker runs the agreed check and produces proof.

  4. The check decides.

    Pass or fail, decided by the check both sides signed up to. No opinions, no committees.

    Diagram state: The proof reaches the check and the check records a pass.

  5. The money moves.

    Pass — the worker is paid on the spot, and the receipt is permanent. No pass — nothing moves, and the buyer reclaims the payment at the deadline.

    Diagram state: The payment and bond reach the worker and a permanent receipt prints.

Built for work you can verify.

Teams running AI coders

Stop paying for AI-written code on faith. Set the check your team already trusts; pay when it passes.

Platforms that farm out work

Add pay-on-proof settlement to your product without building escrow, refunds, or disputes.

Bounties and one-off jobs

Post the check that's failing. Pay whoever makes it pass. No arguing afterward.

Don't take our word for it. Take the receipt.

Public receipts

Settlement happens on a public ledger — permanent, timestamped, open to anyone. The receipt proves it.

Open contracts

The code that moves the money is published and source-verified.

Locked terms

The reward, the deadline, the fee — everything locks when the worker is chosen. No one rewrites a deal in flight.

Inspect the receipts and contracts →