#PhysicalReviewLetters

Live, measured metrics for the hashtag #PhysicalReviewLetters 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 #physicalreviewletters

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 · 21-character #name
2
Uses / 7 days
Mastodon
2
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
0
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mas.to (Mastodon public tags API) · fetched 2026-10-09 15:22 UTC
0
10-03
0
10-04
0
10-05
0
10-06
0
10-07
2
10-08
0
10-09

2 uses by 2 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 2026-10-09 15:22 UTC

No related tags with measured usage found for #physicalreviewletters.

Live pulse

measured · mas.to (Mastodon tag timeline) · fetched 2026-10-09 15:22 UTC

Everything below is measured over the latest 40 public posts (spanning ~10100 hours).

Posting hours (UTC) — busiest: 09:00

00:0012:0023:00

Languages: English (35) · German (3) · Italian (1) · Finnish (1)

Avg boosts / post: 0.1

Top of the latest posts

  • A 1975 physics paper had 2 authors, but one was a cat named Chester; here’s why he made it into a scientific journal In 1975, physicist Jack H. Hetherington added his cat as a co-author; the paper was published in a… #NewsBeep #News #Physic

    United Kingdom News Beep@[email protected]♥ 0↻ 02026-10-08 09:00 UTCView post →
  • https://www.europesays.com/uk/1243144/ A 1975 physics paper had 2 authors, but one was a cat named Chester; here’s why he made it into a scientific journal #1975PhysicsPaper #CatScientificPaper #ChesterCatCoAuthor #FDCWillard #JackHHetherin

    UK@[email protected]♥ 0↻ 02026-10-08 07:05 UTCView post →
  • Physicists find Einstein’s ‘spooky’ quantum effect inside Higgs boson decays ATLAS physicists found strong evidence that pairs of massive Z bosons produced in Higgs decays emerge with entangled… #NewsBeep #News #Physics #AlanBarr #Atlas #AT

    Australia News Beep@[email protected]♥ 0↻ 02026-09-20 19:00 UTCView post →

#physicalreviewletters across platforms

every network with a public tag surface

Follow #physicalreviewletters 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/physicalreviewletters