#protium
Live, measured metrics for the hashtag #protium from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #protium
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · mas.to (Mastodon public tags API) · fetched 2026-10-13 22:29 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mas.to (Mastodon public search API) · fetched 2026-10-13 22:29 UTCNo related tags with measured usage found for #protium.
Live pulse
measured · mas.to (Mastodon tag timeline) · fetched 2026-10-13 22:29 UTCEverything below is measured over the latest 4 public posts (spanning ~26754 hours).
Posting hours (UTC)
Languages: English (3) · German (1)
Avg boosts / post: 0.3
Top of the latest posts
https://www.europesays.com/uk/1183858/ Hydrogen van trial launched in Swansea by Wales & West #Britain #GreatBritain #GreenHydrogen #Hydrogen #Hyppo #Protium #Swansea #UK #UnitedKingdom #Wales #WalesAndWestUtilities
Die @dfg_public verlängert die Förderung des #Graduiertenkollegs #Wasserstoffisotope ¹²³H um weitere 4,5 Jahre in Höhe von ca. 5,5 Mio. Euro. Ziel des Kollegs ist es, Arbeitskräfte von morgen in neuen Technologien rund um die 3 Wasserstoffi
#NaturalHydrogen Numerous startups & some academics are in the natural hydrogen #NH exploration space. #NH is mostly #protium (1 proton=¹H) & 0.015% deuterium (1 proton + 1 neutron=²H). Origins of H2 formation change the #deuterium ratio.↙️
What “protium” means
WikipediaHydrogen (1H) has three naturally occurring isotopes: 1H, 2H, and 3H. 1H and 2H are stable, while 3H has a half-life of 12.32 years. Heavier isotopes also exist; all are synthetic and have a half-life of less than 1 zeptosecond (10−21 s).
“Isotopes of hydrogen” on Wikipedia (CC BY-SA) →#protium across platforms
every network with a public tag surfaceFollow #protium straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/protium