#cardinality

Live, measured metrics for the hashtag #cardinality 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 #cardinality

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 #cardinality — $10.85/yr→
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card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
12
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 12
0.2
Avg reactions / post
Mastodon · last 12

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-07-27 07:17 UTC
0
07-21
0
07-22
0
07-23
0
07-24
0
07-25
0
07-26
0
07-27

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

Related hashtags

measured · fosstodon.org (Mastodon public search API) · fetched 2026-07-27 07:17 UTC
#CardinalityMatters
0 uses · 0 accounts / 7d

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-27 07:17 UTC

Everything below is measured over the latest 12 public posts (spanning ~46034 hours).

Posting hours (UTC) — busiest: 14:00

00:0012:0023:00

Languages: English (12)

Avg boosts / post: 2.8

Top of the latest posts

  • Evolution of the notation for the empty set: 0 - George Boole 🇬🇧 (1847) 𝑂 - Georg Cantor 🇩🇪 (1880) {} - Gottlob Frege 🇩🇪 (1882) Λ - Giuseppe Peano 🇮🇹 (1889) ∅ - Andre Weil 🇫🇷 (1939) "Much later, my own part in these discussions e

    Pustam | पुस्तम | পুস্তম🇳🇵@[email protected]♥ 1↻ 262024-08-11 07:08 UTCView post →

  • Just released: Discrete Math Cheat Sheet by AviMathPerson Download it free at http://www.cheatography.com/avimathperson/cheat-sheets/discrete-math/?utm_source=mastodon Here's their description of it: Notes from a course I took in discrete m

    Cheatography@[email protected]♥ 1↻ 02024-03-27 14:05 UTCView post →

  • 🥳 New update - Real-time Cardinality Estimations for #VictoriaMetrics and #Prometheus #Cardinality problems usually begin with a small, seemingly harmless change: you add a label, and suddenly one metric becomes thousands of unique series.

    VictoriaMetrics@[email protected]♥ 0↻ 02026-07-20 12:19 UTCView post →

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/cardinality