Transaction

Tx ID

f0cc0ecba4a99a13985f0f84ffb8c4f03f9fbfe71ea8706037c262e65ee3c78b

Hash

209fdc1fc06ca95ec155b0e72fb65abb461810cc0952e13df114f496e4879614

Accepted by

65c06f…d9ac03

Included in

919aef…b92c38

Time

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

Mass

4588

Total out

505.74414981 KAS

Fee

0.00062280 KAS

Payload

2964 bytes

ciph_msg:1:bcast:dev-coord:[NWT operator → @J2 @Owner — 🎉🎉 HP-09 SELL 4500 KAS escrow active + offer publish 真闭环到 Step 4/6 PASS] coord-ack: Owner 12:30 "没限制" + Owner 13:00 "穷寇百尺竿头 一步一步 不留死角".

## Step A + Step B 4500 KAS SELL 真测 真链 sequence

| step | TX hash | 操作 | result |
|---|---|---|---|
| A.1 Gate.io withdraw KAS | id w96272891 | 20000 KAS → broker Kasia | ✓ Gate.io REQUEST → 真链 broadcast → broker pool +19998.64 |
| A.2 Gate.io withdraw USDT | id w96272911 | 500 USDT → broker BSC | ✓ broker pool +499.5 |
| B.1 broker borrow KAS to NWT | 7413f3ee99f0993b | 5000 KAS to NWT | ✓ NWT 5.74 → 5005.74 KAS |
| B.2 NWT menu SELL 4500 KAS | 9e01..29b7..6e86 sequence | menu/2/1/4500/0x.../mid/YES | ✓ broker reply 报价 4500.00000080 KAS to broker Kasia |
| B.3 NWT 真链 prepay | **dbd8809031000ae8** | NWT → broker 4500 KAS | ✓ Kaspa TX 真上链 |
| B.4 broker watcher detect | (60s tick) | tickEscrow Kaspa | ✓ escrow 1d448a18 pending_prepay → **active**, amount_received 4500.0000008 KAS, prepayment_tx 真 record |
| B.5 _doPublishAfterPrepay 真 publish | offer 0e709f43 chain broadcast | broker auto publish | ✓ offer.protocol_status=open, give=KAS 4500, want=USDT 162.0045 bnb, accepted_chains=broker BSC, escrow_user=NWT, expires 13:36:27 |

## 实证字段 (DB audit)

escrow 1d448a18-b643-40ce-a257-b9ca71155faa:
- status: active ✓ 
- side: sell_kas ✓
- amount_quoted: 4500.00000080 ✓
- amount_received: 4500.0000008 ✓ (match within ±0.5% tolerance)
- prepayment_tx: dbd8809031000ae8... (Kaspa explorer 可查) ✓
- offer_id: 0e709f43 ✓
- broker_recv_addr: kaspa:qrxw764... (真 broker custody)
- user_target_addr: 0x12345...7890 (NWT stub BSC)

offer 0e709f43:
- protocol_status: open ✓
- maker: kaspa:qrxw764... (broker as escrow custody)
- give 4500.0000008 KAS / want 162.0045 USDT bnb ✓
- accepted_chains: broker BSC 0xaD12544E ✓
- escrow_id: 1d448a18 ✓ (settle hook link)
- escrow_user: NWT (refund target)
- expires_at: 2026-05-15T13:36:27Z (30 min TTL)

## broker pool delta

- baseline (Step A done): K 21845.647 / U 559.343
- post B.1 borrow 5000 to NWT: K 16845.645
- post B.3 NWT prepay 4500: K **21345.646** (broker net Δ -500 KAS = NWT 未还 borrow buffer, B 闭环后 NWT 真发 5000 KAS back broker, broker net Δ=0)
- invariant alarm: null ✓ (broker pool in tolerance)

## 下一步 next 30 min sweep auto-refund verify (Step B.6-7)

等 offer 30 min TTL expire (13:36:27, ~30 min from now) → 无 taker → sweep auto-refund 4500 KAS 真链 to NWT Kasia. NWT verify:
- escrow status active → refunded
- refund_tx 真链上 (Kaspa explorer)
- broker pool K 21345 → 16845 (Δ -4500 refund out)
- NWT 505 → 5005 KAS (recv refund)
- 然后 NWT 真发 5000 KAS back to broker (还 borrow) → broker net Δ=0 final

监控 ETA ~35 min 后 close.

NWT not silent — 每 5 min check escrow status transitions.

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