# HACHIKO · 八公

> An agent-only ticket board on BNB Smart Chain. 10,000 tickets, 1,000,000
> HACHIKO each. 1,000 standing tickets (500 agents x 2) at 0.0002 BNB — all
> of it to the treasury in the same transaction — and 9,000 seated tickets
> at 0.001 BNB,
> of which 30% goes to the treasury and 70% is held for the pool. Nobody can
> refund. The train leaves once 7,000 tickets are gone; every held wei plus
> 700,000 HACHIKO per seated ticket seeds PancakeSwap V2 and the LP is burned.
> No owner, no tax, no upgrade, no deadline.

HACHIKO is a BEP-20 token (18 decimals) sold as tickets: 1 ticket = 1,000,000
HACHIKO. Only wallets holding a Binance .ai Agent ID may board.

## The board in numbers

| item | value |
|---|---|
| tickets | 10,000 × 1,000,000 HACHIKO |
| standing tickets (站票) | 1,000 (500 agents x 2) at 0.0002 BNB, 2 per wallet, 100% to treasury |
| seated tickets (座票) | 9,000 at 0.001 BNB, max 10 per wallet combined |
| supply | 10B handed out + up to 6.3B into the burned LP = 16.7B cap |
| departure | anyone at 7,000+ tickets, automatic at 10,000 |
| fee | 30% of every seated ticket (0.0003 BNB) leaves in the same tx |
| held | the other 70% (0.0007 BNB per seated ticket) funds the pool |
| refunds | none |
| pool price | exactly 0.001 BNB per 1,000,000 HACHIKO at open |
| LP | burned to 0x000000000000000000000000000000000000dEaD |
| transfers | locked until departure |
| deadline | none |

**Contracts (BSC 56):**
- mint: `0xb342d833323568a7231d1a029816ff409048f7b3` (deployed block 132,960,628)
- token: `0xa52cab7cf13731391623f44a207878835d37453c` (HACHIKO, 18 decimals)
- pair HACHIKO/WBNB: `0xe2b95ef1ba0138091366793268a35b7a60e18f49`

Do not send anything to a contract address you found anywhere else.

## What an agent actually does

```
1. registry 0x60B9262456dE011F7d15a54CdD8c48bAaa8B022F .balanceOf(wallet) > 0 ?
2. mint.stationOpen() ?                 (false after departure)
3. standing: stand(n)   value n * 0.0002 BNB, n <= 2 per wallet
   seated:   seat(n)    value n * 0.001 BNB, standing + seated <= 10
4. at boarded >= 7,000 anyone calls depart(); at 10,000 it departs itself
5. decode StandingBoarded / SeatBoarded / Departed
```

Standing and seated tickets are separate calls. `stand(n)` at 0.0002 BNB is
not free — that is the fare, and it is not refundable. `seat(n)` value must
be exact; overpayment and underpayment both revert. No permit, no signature,
no allowlist, no referral.

## Reading before signing

`stationOpen()` · `agentOk(wallet)` · `ticketsLeft()` · `boarded()` ·
`standingTaken()` · `seatsSold()` · `standingLeft(wallet)` ·
`seatsAvailable(wallet)` · `standCost(n)` · `seatCost(n)` · `faresHeld()` ·
`departureReady()` · `departed()`. All plain `eth_call`s.

## If it reverts

| error | meaning |
|---|---|
| `StationClosed` | the train has departed; no more tickets |
| `AgentOnly` | wallet has no Binance .ai Agent ID |
| `StandingCap` | wallet already has 2 standing tickets |
| `WalletCap` | 10 tickets per wallet reached, both lanes combined |
| `LaneFull` | that lane is sold out |
| `TrainFull` | all 10,000 tickets are gone |
| `FareMismatch` | msg.value is not exactly n × fare |
| `NotReady` | depart() before 7,000 tickets |
| `AlreadyDeparted` | depart() called twice |
| `NoFares` | departure with nothing held (never on the normal path) |

## Honest risk

If fewer than 7,000 tickets are ever sold, `depart()` cannot run. The held BNB
stays in the contract and the tokens stay locked — there is no refund path.
Read `boarded()` before buying.

## Links

- whitepaper: ../WHITEPAPER.md
- agent manual: skill.md
- site: index.html