Privacy Policy

Effective: November 13, 2026 · ← Back to site

1. What we collect

1. Account info: the nickname and email you provide at signup. Your password is stored only as an irreversible salted hash — nobody (including administrators) can see it in plain text.
2. Learning data: study progress, answer records, favorites and similar items, used solely to provide the learning features to you.
3. Transactions: order numbers, on-chain transaction IDs, amounts and entitlement records, used to reconcile payments and creator payouts.
4. Verification / reset codes: stored short-term as hashes only (expire in 10–15 minutes).

一、我们收集什么:1. 账号信息:注册时提供的昵称与邮箱;密码仅以不可逆的加盐哈希存储,任何人(包括管理员)都无法看到明文。2. 学习数据:学习进度、答题记录、收藏等,仅用于向你提供学习功能。3. 交易记录:订单号、链上交易 ID、金额与权益开通记录,用于核对付款与分成结算。4. 邮箱验证码 / 重置码:仅以哈希形式短期保存(10–15 分钟过期)。

2. What we do NOT collect

We do not collect your real name, national ID, or phone number, and we never touch your crypto wallet keys or seed phrase — payments are transfers you initiate yourself to the address published on the site; we only read the on-chain transfer records.

二、我们不收集什么:不收集你的真实姓名、身份证、手机号;不接触你的加密钱包私钥或助记词——付款是你主动向站内公示地址转账,我们只读取链上的转账记录。

3. How data is used

Solely to: provide and sync learning features, grant and reconcile paid entitlements, send verification/reset emails, and prevent abuse (bot detection, rate limiting), plus creator payout reconciliation. Not used for advertising; never sold to third parties.

三、数据怎么用:仅用于:提供与同步学习功能、开通与核对付费权益、发送验证/重置邮件、防止滥用(真人检测、频率限制)、创作者分成结算。不用于广告,不向第三方出售。

4. Third-party services

1. Email delivery: verification and reset codes are sent through a third-party email service (Brevo), which only receives the recipient address and the email content.
2. Bot detection: signup uses Cloudflare Turnstile, processed by Cloudflare under its own privacy policy.
3. Blockchain: payment verification relies on public on-chain data.

四、第三方服务:1. 邮件发送:验证码与重置码通过第三方邮件服务(Brevo)发送,对方仅获得收件邮箱与邮件内容。2. 真人检测:注册时使用 Cloudflare Turnstile,由 Cloudflare 按其隐私政策处理。3. 区块链:付款验证依赖公开的链上数据。

5. Retention and deletion

Account and order data are kept while the service runs. You may request account deletion (contact support); after deletion your account info and personal data are removed. For bookkeeping purposes, necessary transaction records may be retained.

五、数据保存与删除:账号与订单数据在服务运行期间保存。你可以要求删除账号(联系客服),删除后账号信息与个人数据将被移除;出于财务核对需要,交易流水可能保留必要记录。

6. Security measures

Salted password hashing, hashed verification codes, key-authenticated admin panel, HTTPS site-wide. Data is backed up regularly.

六、安全措施:密码加盐哈希、验证码哈希存储、管理端密钥鉴权、全站 HTTPS。数据定期备份。

7. Contact

For privacy requests, contact [email protected]

七、联系:隐私相关请求请联系:[email protected]