#notation

Live, measured metrics for the hashtag #notation 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 #notation

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.

$110.68/ year · 8-character #name
Claim #notation$110.68/yrBuy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
2
Uses / 7 days
Mastodon
2
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
0.4
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 2026-09-09 08:29 UTC
0
09-03
0
09-04
0
09-05
1
09-06
0
09-07
1
09-08
0
09-09

2 uses by 2 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · fosstodon.org (Mastodon public search API) · fetched 2026-09-09 08:29 UTC

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-09 08:29 UTC

Everything below is measured over the latest 40 public posts (spanning ~7531 hours).

Posting hours (UTC) — busiest: 19:00

00:0012:0023:00

Languages: English (36) · French (3)

Avg boosts / post: 1.1

Top of the latest posts

  • I think the real reason I could never remember is that I didn't want to. It sucks that I have to write ω² + ω·2 + 1 instead of ω² + 2ω + 1. We should all agree that 2ω, written without a dot, is an abbreviation for ω·2. That won't be confus

    Mark Dominus@[email protected]602026-07-10 13:40 UTCView post →
  • Context: I do public outreach presentations on AI aimed at senior citizens, and yesterday I had an attendee who was blind. I have handouts...and was embarrassed that I didn't have anything for her.) So I'd like a Braille version of that han

    Dan Drake 🦆@[email protected]4102026-08-11 13:55 UTCView post →
  • Trying out ABCarus for local editing of abc music #notation. I'm running the AppImage on #debian and so far for the simple edits I've done its working well! I've been using online WYSIWYG abc editing tools for years but always wanted someth

    iN8sWoRLd@in8sworld212026-03-21 21:30 UTCView post →

What “notation” means

Wiktionary · Wikipedia

notation/noʊˈteɪʃən/

  • nounThe act, process, method, or an instance of representing by a system or set of marks, signs, figures, or characters.
Full entry on Wiktionary →

In linguistics and semiotics, a notation system is a system of graphics or symbols, characters and abbreviated expressions, used in artistic and scientific disciplines to represent technical facts and quantities by convention. Therefore, a notation is a collection of related symbols that are each given an arbitrary meaning, created to facilitate structured communication within a domain knowledge or field of study.

Notation system” on Wikipedia (CC BY-SA) →

#notation across platforms

every network with a public tag surface

Follow #notation 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/notation