# FTO · 一页简介 / One-pager

> 公开页，随站点发布在 `/onepager.md`。线上可点：[中文](#中文) · [English](#english)。
> 只讲**可自证的事实**；不承诺收益/价格。诚实边界见文末，正式条款见 [`/policy.md`](./POLICY-DRAFT.md)。

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## 中文

**FTO = Fractal TapeOut**：在 **Fractal Bitcoin** 上用「代币=晶体管 → 画布接线 → 流片 → 可调用电路」的玩法造芯片。**没有 VM、没有合约**也能做到：电路**内容寻址 + 铭刻**、元件**原子结算**、争议**绑注 + 单步裁决**、大状态**承诺 + 回放**。规则写成**不可单方更改**的链上契约，状态由**任何人可复算**的事件日志得到。

### 60 秒自助体验（测试网）· 不用钱包也能看第 1、3 步

1. **入门**（钱包自检 · 中英切换）：<https://fractaltapeout.pages.dev/fto/canvas/start>
2. **画布**：放几个门 → 接线 → 点「编译 / 自检」→ 点「流片」：<https://fractaltapeout.pages.dev/fto/canvas/>
3. **公开浏览器**（只读）：处理器 · 余额 · 电路 · **状态根承诺**：<https://fractaltapeout.pages.dev/fto/canvas/explorer>
4. （可选，连钱包）**市场**：挂签名订单 → 选可结算组合 → 双方各签 PSBT → 广播：<https://fractaltapeout.pages.dev/fto/canvas/market>

> 真实流片/下单需一个 Fractal 测试网钱包（UniSat / OKX）+ 测试币（水龙头见入门页）。服务端**不持你的私钥**。

### 可自证的三件事

- 一条命令跑通全部自测与冻结守卫：`node tools/verify_all.mjs` → **135/0**。
- **测试网 + 主网都有真实交易**（铭刻 / 原子结算 / 绑注裁决 / 去托管流片），mempool 可复核。
- **公开 spec + 金标向量**；三方独立索引器得到**同一 digest / 状态根**。

### 我们请求（任选其一即可开始）

1. **一个真实用例**——给我一个你们的电路/状态机，我把它端到端搬上 Fractal。
2. **拨款/合作**——覆盖一次安全审计 + 3–6 个月人力。
3. **索引器/钱包协作**与成本、吞吐的真实反馈。

### 诚实边界（随页附）

- 实验性、**未审计**（未经第三方审计）、无形式化验证。
- 资产层是**索引器真相**（非共识资产）；**完整 BitVM 未实现**（链上惩罚仅覆盖窄核争议步）。
- 当前 **sats-only，无协议代币**、**无协议级抽税**；发币前必须过 G8。
- 主网写入**默认 fail-closed**；当前生产为 **testnet**。
- **不承诺收益、价格或本金保障**；不构成投资建议。

### 链接

- 站内：`/fto/canvas/start` · `/fto/canvas/` · `/fto/canvas/explorer` · `/fto/canvas/market` · `/fto/canvas/issue`
- 文档：`/spec.md` · `/spec/vectors.json` · `/getting-started.md` · `/wallet.md` · `/ops.md` · `/g9-r15.md`
- 条款 / 风险披露 / 隐私（草案）：`/policy.md`；许可 `Apache-2.0`（`/LICENSE`）

---

## English

**FTO = Fractal TapeOut**: build chips on **Fractal Bitcoin** with the "token = transistor → wire a canvas → tape out → callable circuit" loop. With **no VM and no contracts**, FTO gives you content-addressed circuits (**inscribed** to tapscript), **atomic element settlement**, **bonded disputes with single-step adjudication**, and **commit + replay for large state** — rules written as **immutable on-chain covenants**, state derived from an event log that **anyone can recompute**.

### 60-second self-serve (testnet) · steps 1 & 3 are read-only, no wallet needed

1. **Start** (wallet self-check · CN/EN): <https://fractaltapeout.pages.dev/fto/canvas/start>
2. **Canvas**: drop gates → wire → Compile / self-check → **Tape out**: <https://fractaltapeout.pages.dev/fto/canvas/>
3. **Public explorer** (read-only): factories · balances · circuits · the **state-root commitment**: <https://fractaltapeout.pages.dev/fto/canvas/explorer>
4. (optional, with a wallet) **Market**: post a signed order → pick a match → both sides sign the PSBT → broadcast: <https://fractaltapeout.pages.dev/fto/canvas/market>

> Real tape-out/orders need a Fractal testnet wallet (UniSat / OKX) + test coins (faucet on the start page). The server **never holds your keys**.

### Three things you can verify

- Reproduce every self-test and the frozen-contract guard with one command: `node tools/verify_all.mjs` → **135/0**.
- **Real transactions on testnet + mainnet** (inscription / atomic settlement / bonded adjudication / de-custodied tape-out), reviewable on mempool.
- A **public spec + golden vectors**; three independent indexers reach the **same digest / state root**.

### What we ask (any one starts it)

1. **A real use case** — hand me a circuit/state machine and I port it onto Fractal end-to-end.
2. **Funding/partnership** — one security audit + 3–6 months of effort.
3. **Indexer/wallet collaboration** and honest feedback on cost/throughput.

### Honest boundaries (attached)

- Experimental, **unaudited**, no formal verification.
- The asset layer is **indexer truth** (not a consensus asset); **full BitVM is not implemented** (on-chain penalties cover only the narrow dispute step).
- Currently **sats-only, no protocol token**, **no protocol-level fee**; a token must pass G8 first.
- Mainnet writes are **fail-closed by default**; current production is **testnet**.
- **No return, price, or principal guarantee**; not investment advice.

### Links

- Site: `/fto/canvas/start` · `/fto/canvas/` · `/fto/canvas/explorer` · `/fto/canvas/market` · `/fto/canvas/issue`
- Docs: `/spec.md` · `/spec/vectors.json` · `/getting-started.md` · `/wallet.md` · `/ops.md` · `/g9-r15.md`
- Terms / risk / privacy (draft): `/policy.md`; license `Apache-2.0` (`/LICENSE`)