#UT1

Live, measured metrics for the hashtag #UT1 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 #ut1

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.

$5,313.74/ year · 3-character #name
Claim #ut1 — $5,313.74/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
5
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 5
1.2
Avg reactions / post
Mastodon · last 5
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mastodon.social (Mastodon public tags API) · fetched 2026-10-12 12:45 UTC
0
10-06
0
10-07
0
10-08
0
10-09
0
10-10
0
10-11
0
10-12

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 2026-10-12 12:45 UTC
#ut10thpalette
0 uses · 0 accounts / 7d
#ut1604showcase
0 uses · 0 accounts / 7d
#UT135
0 uses · 0 accounts / 7d
#UT112
0 uses · 0 accounts / 7d
#ut12
0 uses · 0 accounts / 7d
#ut1kwa
0 uses · 0 accounts / 7d
#ut1496
0 uses · 0 accounts / 7d
#ut120
0 uses · 0 accounts / 7d
#UT16
0 uses · 0 accounts / 7d
#ut18
0 uses · 0 accounts / 7d
#ut1ghtm1lf
0 uses · 0 accounts / 7d
#UT1999
0 uses · 0 accounts / 7d

Live pulse

measured · mastodon.social (Mastodon tag timeline) · fetched 2026-10-12 12:45 UTC

Everything below is measured over the latest 5 public posts (spanning ~38019 hours).

Posting hours (UTC)

00:0012:0023:00

Languages: English (3) · German (1) · French (1)

Avg boosts / post: 1

Top of the latest posts

  • Melting ice solves leap-second problem — for now https://www.nature.com/articles/d41586-024-00850-x #TimeKeeping #LeapSecond #ClimateChange #IceSheets #UTC #tai #UT1

    Matt Willemsen@mattotcha♥ 5↻ 32024-03-29 05:14 UTCView post →

  • In this excellent post I learned today that in edition to #UTC there is ofc #UT1 and I’m already ready to seek professional help again 😂😅 https://ssoready.com/blog/engineering/truths-programmers-timezones/ Still smirking about `Antarctica

    Michael Simons@rotnroll666♥ 1↻ 22024-11-26 06:21 UTCView post →

  • @xkcd well isn’t the current leap-second (and negative leap-second) debate exactly this? #utc #tai #ut1 #astronomy #iers

    Tillman Reuter@tillmanreuter@ecoevo.social♥ 0↻ 02026-07-16 12:12 UTCView post →

What “ut1” means

Wiktionary

ut/ʌt/

  • nounSyllable (formerly) used in solfège to represent the first note of a major scale.
Full entry on Wiktionary →

#ut1 across platforms

every network with a public tag surface

Follow #ut1 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.

X (Twitter) ↗Instagram ↗TikTok ↗Facebook ↗LinkedIn ↗YouTube ↗Threads ↗Bluesky ↗Mastodon ↗Reddit ↗Pinterest ↗Tumblr ↗

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/ut1