Umarise
Startup in .com
Anchor any file to Bitcoin to prove it existed at a specific time
- Kind
- Startup
- Country
- Worldwide
- Place
- .com
- Listed since
- 2026
- Website
- https://umarise.com/blog/proof-of-existence
- launched
- 2026-03-19
- launch post
- https://news.ycombinator.com/item?id=47442086
- hn score
- 2
- domain created
- 2025-05-10
- Last verified
- 2026-03-19
Sources
- Hacker News, "Show HN" — news.ycombinator.com, read 2026-03-19
