Livecheck Confirm order_placed - independent side-effect verification (actor != verifier). POST /v1/confirm/order with {url, intent: order_placed} (+ optional claim). Returns confirmed|failed|unknown; thank-you fluff alone never confirmed - durable order/ref/ticket id required. Fixed $0.25 USDC. lead_submit and listing_published stay on POST /v1/confirm ($0.10). Signed receipts + GET /stats. Not Trust Oracle / L3.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.25 USDC | 0x3369...91c5 |