> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cooket.fun/llms.txt
> Use this file to discover all available pages before exploring further.

# Transaction lifecycle

> From review and signature to receipt recovery and indexed state.

```mermaid theme={null}
sequenceDiagram
  participant U as User
  participant UI as Cooket web
  participant RPC as Arc RPC
  participant W as External wallet
  participant C as Arc contract
  participant A as Indexer and API
  UI->>RPC: Read and quote
  UI->>RPC: Simulate exact request where required
  UI->>W: Request confirmation
  U->>W: Review and sign
  W->>C: Submit transaction
  UI->>RPC: Wait for receipt
  RPC-->>UI: Success, revert, replacement, or unresolved
  A->>A: Confirm and index canonical events
  UI->>A: Refresh canonical views
```

Cooket verifies the active signer and Arc Testnet chain immediately before submission. Submitted curve trades retain sender, nonce, target, value, calldata, and a bounded scan position for receipt recovery. If the original hash is missing but the nonce was consumed, recovery scans for a repriced, replaced, or cancelled transaction. If provenance remains unavailable, confirmation stays unknown.

Do not duplicate a transaction merely because the interface timed out. Inspect the original hash and nonce on [ArcScan](https://testnet.arcscan.app), then use the app's recovery path.

API and chart changes can lag a successful receipt because the indexer waits for configured confirmations. That delay does not change the chain result.