collate a proof of an authorship date
Proof of Freshness. Run with:
$ go get github.com/esote/pof && pof
Collate values from multiple sources. Used to prove something cannot have been prepared ahead of the date specified within a day or so.
- arXiv recently submitted preprints
- Cryptocurrency block hashes (depth 10)
- News (5 latest articles)
- Der Spiegel international
- New York Times world news
- BBC world news
- The Economist latest updates
- NIST beacon v2
Inspired by the proof of freshness used in Qubes OS' canaries.