#tau

Live, measured metrics for the hashtag #tau 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 #tau

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 #tau — $5,313.74/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
3
Uses / 7 days
Mastodon
3
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
3.3
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 2026-09-28 14:47 UTC
0
09-22
1
09-23
1
09-24
0
09-25
0
09-26
1
09-27
0
09-28

3 uses by 3 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 2026-09-28 14:47 UTC

Live pulse

measured · mastodon.social (Mastodon tag timeline) · fetched 2026-09-28 14:47 UTC

Everything below is measured over the latest 40 public posts (spanning ~2915 hours).

Posting hours (UTC) — busiest: 14:00

00:0012:0023:00

Languages: English (26) · German (5) · Norwegian (4) · Japanese (1) · Italian (1) · Russian (1)

Avg boosts / post: 1.5

Top of the latest posts

  • Big robot (but it's for the greater good). Trying to get back into drawing every day just for the sake of having fun with ink. #skech #sketchbook #penandink #tau #warhammer40k

    Honora Niwlcraft@[email protected]♥ 47↻ 122026-06-10 11:53 UTCView post →
  • #fotovorschlag #detailfotografie Eine sogenannte #jungfer #jungfern werden paarweise verwendet um #wanten oder #stage zur Stabilisierung des Mastes mit einem #tau ( #taljereep ) kraftvoll und elastisch zu spannen. Sie dienten früher als kla

    Marcus Baumgartner@Marcus_Baumgartner♥ 21↻ 12026-08-15 06:22 UTCView post →
  • Taubenetztes Spinnennetz im morgendlichen Gegenlicht. #naturephotography #photography #spinnennetz #gegenlicht #Tau #silentsunday

    WilliBilli@[email protected]♥ 11↻ 72026-09-13 10:34 UTCView post →

What “tau” means

Wiktionary · Wikipedia

tau/taʊ/

  • nounThe letter Τ/τ in the Greek, Hebrew and ancient Semitic alphabets, being the nineteenth letter of the Classical and Modern Greek, the twenty-first letter of Old and Ancient Greek.
Full entry on Wiktionary →

Tau is the nineteenth letter of the Greek alphabet, representing the voiceless dental or alveolar plosive IPA: [t]. In the system of Greek numerals, it has a value of 300.

“Tau” on Wikipedia (CC BY-SA) →

#tau across platforms

every network with a public tag surface

Follow #tau 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/tau