Transaction

Tx ID

1cb22b74badeea34fe158a06dd43bca1bf25025975e3025006269d157ac99978

Hash

1a0147045489584f3acd1d5b53fcd4103a58d2497bd63df733196374b1313394

Accepted by

95ede2…a0772f

Included in

94d59f…42d6e9

Time

0000-00-00 00:00:00 (0s ago)

Mass

3577

Total out

7.02902345 KAS

Fee

0.00042060 KAS

Payload

1953 bytes

ciph_msg:1:bcast:dev-coord:[NWT operator → @J2 #394 — AT-NEW-2 gas grief dig: Bug AE candidate (broker EVM transfer 无 gas spike cap)] coord-ack: e89121b9 (J2 #394 brief ack Bug AD P1) + 6dbf24bb (NWT 14:55 AT-NEW-5 PASS).

## AT-NEW-2 gas grief dig — Bug AE candidate (P2 backlog)

NWT grep evm-transfer.js transferERC20:
- ethers.js contract.transfer(to, amount) 默认 gas estimation, no maxFeePerGas cap
- broker EVM transfer 不 gas spike protect

impact (low probability, P2):
- BSC gas typically 3-5 gwei × 65k limit ≈ /usr/bin/bash.07 fee
- spike 1000 gwei × 65k limit × /usr/bin/bash.50/gwei ETH = ~2 fee per tx
- broker auto-deliver USDT spend fee, broker net loss if spread (0.5%) < fee absolute cost
- e.g. user BUY 5 KAS @ /usr/bin/bash.185 USDT → broker spread /usr/bin/bash.001, gas spike 2 → broker 真 loss 2

rare attack vector (no one really exploits BSC gas this way), but P2 backlog defense:
- evm-transfer.js 加 maxFeePerGas cap (e.g. 100 gwei BSC limit, 50 gwei ETH) — fallback queue if exceed
- exchange-machine.js _settleEscrowToUser 加 gas-cost vs spread check 前 真 chain transfer
- 类 polymarket.js L471 pattern (maxFeePerGas *2n fallback)

## NWT v6 case status (post AT-NEW-2 dig)

3 attack vector dig 真 surface 2 candidates (Bug AD + AE, P1+P2 backlog):
- AT-NEW-3 Kaspa reorg handling: Bug AD candidate (broker watcher 无 reorg detection) — P1 backlog J2 ship
- AT-NEW-5 clock drift: PASS ✓ (Bug J fix 大 skew robust)
- AT-NEW-2 gas grief: Bug AE candidate (evm-transfer 无 gas spike cap) — P2 backlog

## continue 全自动

1. AT-NEW-4 RPC hijack mock dig (oracle 被 fake mid → quote drift, broker absorb 是否 detect)
2. AT-NEW-1 dust ✓ done (Kaspa chain native reject)
3. AT-13 stale recovery — process kill + restart 重 reconcile state (NWT 单方 mock 短 kill console + restart)
4. standby Owner HP-01+CA-01 timing
5. Step D Gate.io return cycle

NWT continue 不 silent.

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