#hydrogen

Live, measured metrics for the hashtag #hydrogen from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #hydrogen

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.

$110.68/ year · 8-character #name
Claim #hydrogen — $110.68/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
22
Uses / 7 days
Mastodon
22
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0.1/hr
Recent pace
Mastodon · last 40
0
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mas.to (Mastodon public tags API) · fetched 2026-10-17 05:21 UTC
2
10-11
4
10-12
5
10-13
3
10-14
6
10-15
2
10-16
0
10-17

22 uses by 22 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 2026-10-17 05:21 UTC

Live pulse

measured · mas.to (Mastodon tag timeline) · fetched 2026-10-17 05:21 UTC

Everything below is measured over the latest 40 public posts (spanning ~292 hours).

Posting hours (UTC) — busiest: 14:00

00:0012:0023:00

Languages: English (39) · German (1)

Avg boosts / post: 0.8

Top of the latest posts

  • #hydrogen #h2 #CleanTransportation #ClimateSolution MIT startup says it can turn diesel trucks into cheaper hydrogen haulers — see it at Disrupt https://techcrunch.com/2026/10/13/mit-startup-says-it-can-turn-diesel-trucks-into-cheaper-hydro

    Old Hippie Ⓥ Resistance!@[email protected]♥ 1↻ 02026-10-13 21:15 UTCView post →
  • [#TRADESHOW] #EP #Shanghai 2026 – The 33rd #China Shanghai #International #Exhibition on #Electric #Power #Equipment and #Technology, #Energy #Storage Technology Application & #Hydrogen Energy #Expo from December 3 to 5, 2026, at Shanghai N

    China Business Forum@[email protected]♥ 0↻ 02026-10-16 22:55 UTCView post →
  • #hydrogen101 Stock to be wary of: ↙️Greentech Hydrogen Innovations ↘️Their patent app is for PLC/SCADA applied to hydrogen storage/distribution. Everyone does it these days. No big deal. Greentech: begat from: Aegis Critical Energy Defence,

    KeithDPatch@[email protected]♥ 0↻ 12026-10-16 21:40 UTCView post →

What “hydrogen” means

Wiktionary · Wikipedia

hydrogen/ˈhaɪdɹədʒ(ə)n/

  • nounThe lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.00794.
Full entry on Wiktionary →

Hydrogen is a chemical element; it has the symbol H and atomic number 1. It is the lightest and most abundant chemical element in the universe, constituting about 75% of all normal matter. Under standard conditions, hydrogen is a gas of diatomic molecules with the formula H2, called dihydrogen, or sometimes hydrogen gas, molecular hydrogen, or simply hydrogen. Dihydrogen is colorless, odorless, non-toxic, and highly combustible. Stars, including the Sun, mainly consist of hydrogen in a plasma st

“Hydrogen” on Wikipedia (CC BY-SA) →

#hydrogen across platforms

every network with a public tag surface

Follow #hydrogen 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/hydrogen