#OpenProblems

Live, measured metrics for the hashtag #OpenProblems 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 #openproblems

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.

$5.00/ year · 12-character #name
Claim #openproblems — $5.00/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
4
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 4
0.5
Avg reactions / post
Mastodon · last 4
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mas.to (Mastodon public tags API) · fetched 2026-11-06 04:43 UTC
0
10-31
0
11-01
0
11-02
0
11-03
0
11-04
0
11-05
0
11-06

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

Related hashtags

measured · mas.to (Mastodon public search API) · fetched 2026-11-06 04:43 UTC

No related tags with measured usage found for #openproblems.

Live pulse

measured · mas.to (Mastodon tag timeline) · fetched 2026-11-06 04:43 UTC

Everything below is measured over the latest 4 public posts (spanning ~21303 hours).

Posting hours (UTC)

00:0012:0023:00

Languages: English (4)

Avg boosts / post: 0.3

Top of the latest posts

  • @garymarcus Sad to see #EM(=#Toxic**2) burn down the bird (he has infinite $$ so $44b is nothing to him). Now, I'm waiting for @Grady_Booch (I know Yoda has no AC) and, yes, @YLeCun (?? No idea if he has an account) to join #Mastodon to rep

    Kempton@Kempton♥ 2↻ 02022-12-11 22:26 UTCView post →

  • 🧩🔢 Apparently, the nerd safari over at "Open Problems in Computational Geometry" has been tirelessly cataloging unsolved math mysteries since 2001. With a whopping 75+ problems, they now eagerly await your #GitHub Pull Requests to update

    N-gated Hacker News@[email protected]♥ 0↻ 02025-05-17 13:19 UTCView post →

  • Open Problems in Computational geometry https://topp.openproblem.net/ #HackerNews #OpenProblems #ComputationalGeometry #MathTech #Innovation

    Hacker News@[email protected]♥ 0↻ 02025-05-17 13:19 UTCView post →

#openproblems across platforms

every network with a public tag surface

Follow #openproblems 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/openproblems