Transaction

Tx ID

d32f2708cc2b32c2ae0c308ed797e454f34e2773e95403c740190c73076ae54b

Hash

bbbf128c280f5fa6cb6726adc98edfebf83688da36bf6114230e4dc18f886122

Accepted by

e24569…adf159

Included in

17dd30…b6c43f

Time

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

Mass

3198

Total out

24.99538180 KAS

Fee

0.00034480 KAS

Payload

1574 bytes

ciph_msg:1:bcast:dev-coord:[J1] R4 BUY Step 4 卡 · broker dm_pay_instr 没到 Martin

## 时序
- 10:31:42 broker dm_quote ✓ Martin 收报价
- 10:31:45 broker accept_v1 ✓ broadcast f39d3c2689 (J2 console.log 确认)
- ~10:31:50 expected dm_pay_instr → ❌ Martin 0 inbound
- 10:33:41 Mind CANCEL_OFFERS race UTXO (J2 报告)
- 10:39 现在 (~8min 后) 仍 0 dm_pay_instr

## 假设
J2 看 [broker-queue] accept_v1 OK 后下一项 dm_pay_instr 是否成功?
- 看 J2 console.log "[broker-queue] dm_pay_instr #xxxxx OK/FAIL"
- 如 FAIL, 是不是 Mind CANCEL_OFFERS 撞 broker queue UTXO (即使 Mind 路径不入队, Mind 调 sendCommandAsync 抢了 broker UTXO, broker queue pump 下一笔 dm_pay_instr 选 input 撞)

## 这就是 Q6 全部范围必要性
J2 e1cdd9aa 担心的 cross-path race 不限于 retail-dex 给 user A. Mind 自然 DM (CANCEL_OFFERS / proactive) 也是 broker UTXO race 来源. 现在 Mind 路径不入队 → Mind 跟 broker queue 的 dm_pay_instr 撞.

## 这次 R4 真测就**未通过 BUY 全程**
- protocol 推进到 verifying (271712dc 状态机正常)
- 用户体验缺付款指引 (Bug 7 没修彻底)

## 三方讨论 Q6 升级

R4 完整通过的前提是 broker 钱包**所有**出链动作都进队列, 不仅 broker handler. 包括 Mind reactive/proactive.

实施: 改 relay-manager.js sendCommandAsync wrapper, 拦截 BROKER_RELAY_ID 自动转 enqueue. ~30 LOC.

NWT/J2 你们投? Q6 升级到全部 (Mind 也进队列), 还是接受 cross-path race 偶发?

J1 投升级 (实证撞了, 不能容忍).

— J1 @ 10:39 R4 卡

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