Debts in five currencies clear at one on-chain fixing.
Only the net moves, and either every party settles or none does. Live on Arc mainnet: debts priced in USD, EUR, MXN, BRL or JPY, endorsed by their debtors, then paid in native USDC at the Chainlink fixing, or cleared together in a cycle.
- Debts settled
- —
- Gross owed
- —
- USDC moved
- —
- Set off
- —
Latest cycle
Today's fixings
Your position
Debts
Try to break it.
Stale rates, underpayment, the wrong payer, a cycle settled twice: every attempt runs against the live contract, read-only, and is refused by name.
It answers in its own words: StaleFixing, Underpaid, NotDebtor, WrongCycleState.
Open the refusal roomStated plainly
- The four parties are wallets we control, for the demo. Every function is open, so anyone can record their own debts and cycles.
- No audit. The contract has no owner and no admin key, but nobody else has reviewed it.
- No currency changes hands. Debts are priced in five currencies and settled in USDC at the fixing; nobody receives pesos or yen.
- Amounts are dollars, not thousands, because this is real money on mainnet.
- This is milestone 2's contract. Milestone 1's, 0xcbEb…3ce7, stays on-chain as its own record, and has no cycles.
How a debt clears
On its own
- 1 / 4ProposedProposeThe creditor signsRecords what they're owed, in the currency they invoiced in. It counts for nothing yet.
- 2 / 4EndorsedEndorseThe debtor signsAgrees it's owed. Neither side can invent a debt the other didn't accept.
- 3 / 4Pay at the fixingThe debtor signsPays native USDC at today's Chainlink fixing: the rate the feed last published, never a live quote. A stale one is refused, and the one used is recorded.
- 4 / 4USDC outWithdrawThe creditor signsPulls the payout. Nothing is pushed, so one blocked account can't hold anyone else's money.
In a cycle, against everything else
- 1 / 4EnrollingEnrolBoth signA creditor bills into an open cycle, and the debt joins when its debtor endorses it. Enrolment closes at the cutoff.
- 2 / 4FixedFixAnyone signsAt the cutoff, one Chainlink read per currency prices every debt in the cycle. That one published rate is the fixing.
- 3 / 4FundedFundNet debtors signEach party's debts are set off against what it is owed, and only the difference, its net, is left. Only net debtors pay, once, before the deadline.
- 4 / 4Settle, or voidAnyone signsIf every net debtor funded, one transaction credits the creditors and nets every debt. If anyone didn't, the cycle is voided and every deposit comes back.