# Sebmellen

Project, Worldwide.

> A tool to privately timestamp a claim and reveal it on schedule
>
> — in its own words, from prove-yourself.sebmellen.com

- Website: https://prove-yourself.sebmellen.com/
- Listed since: 2026
- launched: 2026-07-28
- launch post: https://news.ycombinator.com/item?id=49090702
- hn score: 2
- domain created: 2023-04-15
- Last verified: 2026-07-28


## Sources

- Hacker News, "Show HN" — https://news.ycombinator.com/item?id=49090702, read 2026-07-28

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startup.is · https://startup.is/projects/sebmellen · open data: /api/v1, /llms.txt