Settlement rehearsal

TESTNET· 2026042404✓

One pair, WCCC/tUSD, settled through the same code path mainnet will use. Matching is off-chain; settlement and authority are on-chain.

Nothing here has monetary value

• Test CCC and tUSD cannot be bought, sold, or exchanged for anything of value.
• Argos may be reset without notice, taking every balance and order with it.
• The settlement contract is unaudited. An audit is a prerequisite before it holds anything real.
• Matching is off-chain, so between fills you rely on OpeniBank's sequencing. The chain guarantees you never trade outside the limit you signed — it does not guarantee you were shown the best price.

Connect to TESTNET

Identity only — OpeniBank requests no token approvals, takes no custody, and cannot move your funds.

Test CCC is free, has no monetary value, and will not migrate to mainnet. It exists so the rehearsal can run — nothing more.

Connect a wallet on CreditChain Argos Testnet to wrap CCC and approve trading.

Connect a wallet on CreditChain Argos Testnet to open a prompt-free trading session.

Test quote asset (tUSD)

CCC needs something to be priced against — tUSD is that counterpart, and nothing more. It is not a stablecoin, is not backed by anything, and is not redeemable for any currency.

Connect a wallet to claim your allocation.

0x12141d2c8e…3460fe93

WCCC / tUSD

bid —ask —

Price

tUSD

Amount

WCCC

Total0 tUSD

Signing costs no gas. Your funds do not move until someone crosses your price.

Order book

loading…

Every order shown is signed, unexpired, and re-checked against chain for balance and allowance. Orders their maker can no longer honour are hidden rather than left to waste your gas.

Askssize · price

No asks resting

Bidssize · price

No bids resting

How a trade actually works

1 · Wrap. CCC is the native gas token, and native value cannot be pulled into an atomic swap. WCCC is the tradeable form, 1:1 and always redeemable.
2 · Approve, once. An allowance lets the settlement contract move a token only when you have signed an order for it. You grant it and you revoke it; OpeniBank cannot.
3 · Sign an order. Free, no gas, no transaction. Your funds stay in your wallet and do not move until someone crosses your price.
4 · Someone crosses it. Both legs move directly between the two wallets in one transaction. The settlement contract never holds your funds — a balance sitting in it would be a bug.

Taking an order costs one signature plus one transaction, which you submit yourself. That is a step more than a custodial exchange asks for, and it is precisely the step that means nobody — including us — can trade your balance for you.

How a trade actually works

1 · Wrap. CCC is the native gas token, and native value cannot be pulled into an atomic swap. WCCC is the tradeable form, 1:1 and always redeemable.

2 · Approve, once. An allowance lets the settlement contract move a token only when you have signed an order for it. You grant it and you revoke it; OpeniBank cannot.

3 · Sign an order. Free, no gas, no transaction. Your funds stay in your wallet and do not move until someone crosses your price.

4 · Someone crosses it. Both legs move directly between the two wallets in one transaction. The settlement contract never holds your funds — a balance sitting in it would be a bug.