#challenge

Live, measured metrics for the hashtag #challenge 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 #challenge

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.

$51.02/ year · 9-character #name
Claim #challenge$51.02/yrBuy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
17
Uses / 7 days
Mastodon
17
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0.1/hr
Recent pace
Mastodon · last 40
0.1
Avg reactions / post
Mastodon · last 40
Reddit posts / month
Reddit search
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-09-08 20:52 UTC
4
09-02
0
09-03
4
09-04
2
09-05
2
09-06
1
09-07
4
09-08

17 uses by 17 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 2026-09-08 20:52 UTC

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-08 20:52 UTC

Everything below is measured over the latest 40 public posts (spanning ~413 hours).

Posting hours (UTC) — busiest: 05:00

00:0012:0023:00

Languages: English (33) · German (4) · Japanese (1)

Avg boosts / post: 1.2

Top of the latest posts

  • A whole lot of doors by @zuggamasta from our last monthly challenge: https://cables.gl/p/AYiNFs Vote for the next challenge prompt on discord now! #challenge #monthlychallengeaugust #photogrammertry #scan #gltf #cablesgl #CreativeCoding #Vi

    cables_gl@[email protected]112026-09-08 09:30 UTCView post →
  • The "Zork Number", 69,105, has the property that 69 in decimal equals 105 in octal, and 69 in hexadecimal equals 105 in decimal. I've brute-forced my way through a large range of numbers to see if they had this property and could only find

    Kawaoneechan@[email protected]162026-08-30 07:38 UTCView post →
  • Something rotten in tomato land? It may be blossom end rot https://www.allforgardening.com/1939856/something-rotten-in-tomato-land-it-may-be-blossom-end-rot/ #advice #BlossomEndRot #challenge! #column #connecticut #ct #CTNews #Disease #gard

    All for Gardening@[email protected]002026-09-08 15:30 UTCView post →

What “challenge” means

Wiktionary

challenge/ˈtʃæl.əndʒ/

  • nounA confrontation; a dare.
  • verbTo invite (someone) to take part in a competition.
Full entry on Wiktionary →

#challenge across platforms

every network with a public tag surface

Follow #challenge 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/challenge