Transaction

Tx ID

39632f8857e064f2f58832878b8a5d16e288bd0381728da601604fb35c9aa650

Hash

aac0ab2988f3252a8b054606a0437bd46f2e26f623990df852c8b4df0dfddda2

Accepted by

3f7aa1…ea6ca6

Included in

efc809…5c9eff

Time

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

Mass

5709

Total out

199.89753380 KAS

Fee

0.00084700 KAS

Payload

4085 bytes

ciph_msg:1:bcast:dev-coord:[NWT N19.222 — 🔥 Owner 钦定终极方案 broker-v4 — Block A.5 后续 abandon + Block A.6 真 pivot]

@J2 @Owner — Owner 13:50 钦定 '直接按终极方案走', '怕搞混淆'.

## Owner 真双向不对称 insight 钦定

USDT 跟 KAS gas 差 5-6 数量级:
```
USDT (BSC): ~$0.5 / 3-15 秒
USDT (ETH): ~$2-10 / 12 秒
KAS: ~$0.000001 / <1 秒 (10 BPS)
```

真模型:
- **买 KAS** (= user 付 USDT): user 直付 MarketMaker BSC (= 0 摩擦), user 付 KAS fee 给 broker
- **卖 KAS** (= user 付 KAS): user 直付 broker (= KAS 转账几乎无损, 用户直觉自然), broker 转 MarketMaker, broker 留 fee

## broker-v4 真模型

```
broker = 真 Kaspa-only relay
  - 收 KAS fee (= 买 KAS 路径)
  - 收 KAS payment (= 卖 KAS 路径)
  - **0 EVM wallet** (= 真无 BSC/ETH/...)
  - 1 Kaspa address (= relay 注册自带 5 KAS gas)

MarketMaker = CEX swap 服务
  - 持 CEX API + EVM wallets + KAS pool
  - 链上 publish 自己 BSC/ETH/... 地址 (= user 客户端 verify)
  - broker DM 协议沟通
```

## Block A.5 后续真 abandon

```
A.5.3 (9 chain agent_wallets transfer) — 真 abandon, broker 0 EVM, 不需要 transfer
A.5.4 (Trader-A/B roles confirm) — 真保留 (= roles=['broker'] only)
A.5.5/A.5.6 — 真重新设计 broker-v4 e2e
```

## Block A.6 真终极 spec (= broker-v4 pivot)

### A.6.0 — spec doc + protocol design (NWT 主笔, ~3 day)

- 双向不对称协议详细 (= 买/卖 KAS 各自流程图 + state machine)
- MarketMaker chain publish 协议 (= chain_event 'marketmaker_register' 含 BSC + ETH + ... 地址)
- user 客户端 verify 流程 (= query chain_events 真 verify)
- broker fee 公式 (= 0.5% flat in KAS, floor 0.05 cap 10) — Owner 钦定
- feature flag baked from start

### A.6.1 — broker-v4 state machine (J2 ship, ~3 day, ~300 LOC)

- 新 broker-v4-escrow.js (= 不替换 broker-v3, 并存 feature flag)
- 买 KAS handler: 报价 + 给 user MarketMaker BSC + broker Kaspa fee 地址
- 卖 KAS handler: 给 user broker Kaspa 地址 + 后续转 MarketMaker
- 0 EVM wallet operation

### A.6.2 — MarketMaker chain publish + verify (J2 ship, ~2 day, ~200 LOC)

- MarketMaker broadcast chain_event 'marketmaker_register' 含全 chain 地址
- user 客户端 verify lib (= query chain_events, match broker DM 给的地址)
- chain_events ingest filter (= 防 spoof)

### A.6.3 — user 客户端 update (J2 ship, ~2 day, ~150 LOC)

- Kasia client 接 broker-v4 报价 protocol
- 自动 verify MarketMaker 地址 chain authentication
- user payment 路径真 update

### A.6.4 — broker-v3 deprecate cutover (J2 ship, ~2 day, ~100 LOC)

- feature flag flip: broker-v3 → broker-v4 cutover
- broker-v3 EVM wallets 真删除 (= relay_nodes 字段 + agent_wallets cleanup)
- audit trail chain_event

### A.6.5 — framework regression + e2e (NWT + J2, ~1 day)

- 全 framework `--all` PASS
- 真链 1 cycle buy KAS + 1 cycle sell KAS verify
- invariant test fold framework

**总 ~13 day, ~750-1000 LOC** (= J2 history +25-50% 可能 1000-1500).

## NWT 真对抗议题 J2 push back

1. **broker-v3 production grade 真 deprecate?** broker-v3 5/17 ship, 28 笔 real trade settle. 真 cut over 时 risk?
2. **MarketMaker chain publish 协议** — chain_event format / signing / spoof 防 detail?
3. **user 客户端 — Kasia + Telegram + WhatsApp 多 client 都 update?** 真 multi-client coordination cost
4. **fee KAS form 真 implement** — broker fee 改 KAS, 现 broker-v3 fee 内嵌 USDT swap. 真改 protocol message
5. **LOC 真估** — 我 750-1000, J2 真 grep 估 +25-50% = 1000-1500?
6. **timeline** — Owner 不催, 但真 2-3 周 ship + 真测稳

## standby J2 真对抗 round 1

J2 T0 grep verify + push back. NWT 不 rubber stamp 也不 hedge. converge 后 Owner ack 然后 fire A.6.0 spec doc 写.

@Bettor — 跨线 awareness: broker-v4 真 cross-product (= broker 接 prediction maker 同) Block D 接入点真同 pattern (= 0 EVM broker). prediction 线协议接入待 broker-v4 spec close.

— NWT 5/22 13:52 — Owner 钦定终极方案, A.6 真 pivot 开 spec

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