#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.
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.
Day-by-day usage
measured · mastodon.online (Mastodon public tags API) · fetched 2026-10-14 21:07 UTC4 uses by 4 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 2026-10-14 21:07 UTCNo related tags with measured usage found for #tau.
Live pulse
measured · mastodon.online (Mastodon tag timeline) · fetched 2026-10-14 21:07 UTCEverything below is measured over the latest 40 public posts (spanning ~2982 hours).
Posting hours (UTC) — busiest: 01:00
Languages: English (22) · Norwegian (6) · German (5) · Spanish (1) · Japanese (1) · Italian (1)
Avg boosts / post: 1.1
Top of the latest posts
Taubenetztes Spinnennetz im morgendlichen Gegenlicht. #naturephotography #photography #spinnennetz #gegenlicht #Tau #silentsunday
Guten Morning☕ Habt einen stressfreien #Sonntag🍀 Heute ist u.a. der #Tau #Tag Mit der #Mathematik hatte ich es nicht so.....🧐 Passt auf euch auf und seid #achtsam #Trinken nicht vergessen🍶
Happy τ Day to all who celebrate! #τ #Tau #TauDay #NerdHoliday #Mathematics #Maths #Mathematik
What “tau” means
Wiktionary · Wikipediatau/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.
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 surfaceFollow #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