Privacy notice
Version 1.0 · effective 2026-11-03 · RUDO™ Weather Challenge
Short version: we do not know who you are. A family is a key, a child is a codename. We keep an age band, a country or US state, consent switches and forecasts. We never ask for names, emails, birthdays, schools, photos or locations.
1. Who we are
The RUDO Weather Challenge is a program of RUDO™ Learning Hub, operated by LIGHT HOPE ("RUDO", "we", "us").
2. What we collect
| Data | Why | How long |
|---|---|---|
| Family account: the Family Key (shown to you once), the adult and guardian confirmations, the Terms version accepted and when, language preference | To let you sign in and to record that an adult set up the family | While the family exists |
| Participant: system codename, age band (chosen by the guardian), region (country or US state), participation and publication consent switches with the time of each change | To run the challenge, keep age bands separate, and produce aggregate counts | Until the guardian deletes the participant |
| Student Pass for a participant | To let a child forecast for that one participant | Until replaced or the participant is deleted |
| Forecasts: value in tenths of °C, AI-use disclosure (yes or no), server receive time, version, receipt hashes, results and appeals (round and category only) | To score, to show you your history, and to let anyone verify receipts | Linked to the participant until deletion or until 90 days after the season ends, then de-identified (see section 6) |
Session cookie rudo_s (HttpOnly, Secure) | To keep you signed in; strictly necessary | Until sign-out or expiry |
| Language choice in your browser's local storage | To show the site in your language | Until you clear it |
| Partner and school inquiries from adults: organisation, work email, message, language | To reply to the inquiry | As long as needed to respond and keep ordinary business records; deleted on request |
| IP address and basic request data, processed by our hosting provider | To deliver pages, apply rate limits and protect the service from abuse | Security logs no longer than 90 days |
3. What we never collect
Names, email addresses or phone numbers of families or children, birthdates, schools, street addresses, photos, precise location, or device identifiers for tracking. Children cannot type free text anywhere on the platform. We use no advertising or analytics cookies and no third-party trackers.
4. How we use data
- To run rounds, score forecasts exactly, and show each family its own results.
- To publish aggregate statistics only: counts by age band and region, the median error per round, reference line errors and hashes.
- To keep the service secure and fix problems.
We do not sell data, show ads, build profiles, or use children's work to train models. Season 1 publishes no individual results, no codenames and no rankings, whatever the publication switch says.
5. Who else processes data
Our hosting and database provider, Cloudflare, processes data on our behalf to run the site. We do not disclose data to anyone else, except where the law requires it. Partners and sponsors never receive children's or guardians' data.
6. Deletion, export and de-identification
- A guardian can export a participant's data as JSON and delete a participant at any time in the family hub. Deletion removes identifying links within 72 hours.
- After deletion, or 90 days after the season ends, we keep only de-identified records: round, submission hash, forecast value, receive date, and result. These contain nothing that links back to a family, and are kept for up to 10 years so results stay recomputable.
- Withdrawing publication consent takes effect immediately.
7. If you lose your Family Key
Because we hold no email or name, we cannot identify you or recover the key. The data stays private and is de-identified on the schedule above. You can create a new family at any time.
8. Children
The challenge is designed for ages 10–17, with an Open Division for adults. Only an adult who is the parent or legal guardian can add a child, and the guardian chooses the age band and region. The platform does not ask children for personal information. The session cookie is used only to keep the account signed in and to protect the service.
9. Security
All traffic uses HTTPS. Session cookies are HttpOnly and Secure. Keys are shown once and never displayed again. Every write is checked on the server. Ledger hashes are published so tampering would be visible.
10. International use
Families take part from many countries. Data is processed on our provider's global network. Because we hold no names or contact details, the data we process is limited to what is listed above.
11. Changes
Any change gets a new version number and effective date on this page. We will not use existing data in a new way without asking the guardian first.
12. Contact
Use the contact form and choose "Other". Please do not include any child's personal information in your message.
隐私说明
版本 1.0 · 2026-11-03 生效 · RUDO™ 气象挑战
简要说明:我们不知道你是谁。一个家庭就是一把密钥,一个孩子就是一个代号。我们只保存年龄段、国家或美国的州、同意开关和预测。我们从不索取姓名、邮箱、生日、学校、照片或位置。
1. 我们是谁
RUDO 气象挑战是 RUDO™ Learning Hub 的项目,由 LIGHT HOPE 运营(下称“RUDO”或“我们”)。
2. 我们收集什么
| 数据 | 用途 | 保存多久 |
|---|---|---|
| 家庭账户:家庭密钥(只向你显示一次)、成年人与监护人确认、所接受的条款版本与时间、语言偏好 | 让你登录,并记录家庭由成年人创建 | 家庭存续期间 |
| 参赛者:系统代号、年龄段(监护人选择)、地区(国家或美国的州)、参赛与公开同意开关及每次变更时间 | 运行比赛、区分年龄段、生成汇总统计 | 直到监护人删除该参赛者 |
| 参赛者的学生通行码 | 让孩子只为该参赛者提交预测 | 直到更换或参赛者被删除 |
| 预测:十分之一摄氏度的数值、AI 使用披露(是或否)、服务器接收时间、版本、回执哈希、成绩与申诉(仅轮次与类别) | 评分、向你展示历史、让任何人核验回执 | 与参赛者关联,直到删除或赛季结束后 90 天,之后去身份化(见第 6 节) |
会话 Cookie rudo_s(HttpOnly、Secure) | 保持登录;运行所必需 | 直到退出或过期 |
| 浏览器本地存储中的语言选择 | 以你的语言显示网站 | 直到你清除 |
| 成年人提交的伙伴与学校咨询:机构、工作邮箱、留言、语言 | 回复咨询 | 回复及一般业务记录所需期间;可应要求删除 |
| 由托管服务商处理的 IP 地址与基本请求数据 | 提供网页、执行限流、防止滥用 | 安全日志不超过 90 天 |
3. 我们从不收集
家庭或孩子的姓名、邮箱、电话,出生日期,学校,街道地址,照片,精确位置,以及用于追踪的设备标识。孩子在平台上任何地方都不能输入自由文本。我们不使用广告或统计 Cookie,也不使用第三方追踪。
4. 我们如何使用数据
- 运行轮次、精确评分,并向每个家庭展示自己的成绩。
- 只公布汇总统计:按年龄段和地区的人数、每轮误差中位数、参考线误差与哈希。
- 保障服务安全、修复问题。
我们不出售数据、不投放广告、不做用户画像,也不用儿童作品训练模型。无论公开开关如何设置,第一季都不公布任何个人成绩、代号或排名。
5. 还有谁处理数据
我们的托管与数据库服务商 Cloudflare 代表我们处理数据以运行网站。除法律要求外,我们不向任何其他方披露数据。伙伴与赞助方永远拿不到儿童或监护人的数据。
6. 删除、导出与去身份化
- 监护人可随时在家庭中心把参赛者数据导出为 JSON,或删除参赛者。删除会在 72 小时内移除可识别关联。
- 删除后,或赛季结束 90 天后,我们只保留去身份化记录:轮次、提交哈希、预测值、接收日期与成绩。这些记录不含任何能关联回家庭的信息,最长保存 10 年,以便成绩可被复算。
- 撤回公开同意立即生效。
7. 如果丢失家庭密钥
因为我们没有邮箱或姓名,无法识别你,也无法找回密钥。数据保持私密,并按上述时间去身份化。你随时可以创建新的家庭。
8. 儿童
本挑战面向 10–17 岁,另设成年人公开组。只有身为家长或法定监护人的成年人才能添加孩子,年龄段和地区由监护人选择。平台不向孩子索取个人信息。会话 Cookie 只用于保持登录和保护服务。
9. 安全
所有通信使用 HTTPS。会话 Cookie 为 HttpOnly 且 Secure。密钥只显示一次,之后不再显示。每次写入都由服务器校验。账本哈希公开,任何篡改都会被看见。
10. 跨境使用
家庭来自许多国家。数据在服务商的全球网络上处理。由于我们不保存姓名或联系方式,处理的数据仅限上面所列内容。
11. 变更
任何变更都会在本页更新版本号与生效日期。未经监护人同意,我们不会以新的方式使用已有数据。
12. 联系
请使用联系表单并选择“其他”。请不要在留言中填写任何儿童的个人信息。