#radiocarbon

Live, measured metrics for the hashtag #radiocarbon 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 #radiocarbon

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.

$10.85/ year · 11-character #name
Claim #radiocarbon — $10.85/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
1.2
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mastodon.social (Mastodon public tags API) · fetched 2026-09-27 02:11 UTC
0
09-21
0
09-22
0
09-23
0
09-24
0
09-25
0
09-26
0
09-27

0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mastodon.social (Mastodon public search API) · fetched 2026-09-27 02:11 UTC

Live pulse

measured · mastodon.social (Mastodon tag timeline) · fetched 2026-09-27 02:11 UTC

Everything below is measured over the latest 40 public posts (spanning ~24869 hours).

Posting hours (UTC) — busiest: 16:00

00:0012:0023:00

Languages: English (35) · Italian (4) · French (1)

Avg boosts / post: 2.3

Top of the latest posts

  • XRONOS is an open data infrastructure for the backbone of the archaeological record – chronology. As described in our paper out today in the Journal of Computer Applications in Archaeology (https://journal.caa-international.org/articles/10.

    Joe Roe@[email protected]♥ 15↻ 262025-10-30 14:29 UTCView post →
  • C'mon @nytimes, that wasn't a "challenge" to scientific orthodoxy (whatever that means) - it's been clear from the very beginning that none of the #radiocarbon samples presented for an extremely old #pyramid at #GunungPadang came from archa

    Jens Notroff@jens2go♥ 8↻ 32024-03-22 10:08 UTCView post →
  • 14,000 Years Ago, The Most Powerful Solar Storm Ever Recorded Hit Earth - This Event Establishes A New Worst-Case Scenario -- https://www.space.com/astronomy/sun/14-000-years-ago-the-most-powerful-solar-storm-ever-recorded-hit-earth-this-ev

    💧🌏 Greg Cocks@[email protected]♥ 6↻ 112025-06-09 09:38 UTCView post →

What “radiocarbon” means

Wikipedia

Carbon-14, C-14, 14C or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons. Carbon-14 was discovered on February 27, 1940, by Martin Kamen and Sam Ruben at the University of California Radiation Laboratory in Berkeley, California. Its existence had been suggested by Franz Kurie in 1934. Its presence in organic matter is the basis of the radiocarbon dating method pioneered by Willard Libby and colleagues (1949) to date archaeological, geolog

“Carbon-14” on Wikipedia (CC BY-SA) →

#radiocarbon across platforms

every network with a public tag surface

Follow #radiocarbon 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/radiocarbon