#sigma18_50

Live, measured metrics for the hashtag #sigma18_50 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 #sigma18_50

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.

$23.52/ year · 10-character #name
Claim #sigma18_50 — $23.52/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
9
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 9
0.7
Avg reactions / post
Mastodon · last 9
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mastodon.social (Mastodon public tags API) · fetched 2026-08-03 17:38 UTC
0
07-28
0
07-29
0
07-30
0
07-31
0
08-01
0
08-02
0
08-03

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

Related hashtags

measured · mastodon.social (Mastodon public search API) · fetched 2026-08-03 17:38 UTC

No related tags with measured usage found for #sigma18_50.

Live pulse

measured · mastodon.social (Mastodon tag timeline) · fetched 2026-08-03 17:38 UTC

Everything below is measured over the latest 9 public posts (spanning ~1273 hours).

Posting hours (UTC)

00:0012:0023:00

Languages: English (1) · French (1)

Avg boosts / post: 0.2

Top of the latest posts

  • A recent nighttime shot of the Coal Scuttle down in #Cardiff Bay. #fujifilm #fujifilmXH2 #photography #urban #architecture #sigma18_50

    Stuart Herbert@[email protected]♥ 2↻ 02026-02-25 13:43 UTCView post →

  • Instant de tranquilité… © Guillaume Vergoz. Tous droits réservés. __________________________________ #hiking #randonnee #montagne #mountains #hautesavoie #zen #blackandwhite #noiretblanc #paysage #landscape #sonya6400 #sigma18_50 #dxophotol

    Guillaume@[email protected]♥ 2↻ 02026-02-17 14:17 UTCView post →

  • . . . #streetphotography #street_photography #streetphotorapher #canon #canoneos #canonR7 #sigma #sigma18to50mm #sigma18_50 #adobe_lightroom #aps_c #apsc #sigma17to40 #sigma17_40mm

    d.o_street_photo@[email protected]♥ 2↻ 12026-02-01 08:47 UTCView post →

What “sigma18_50” means

Wiktionary · Wikipedia

sigma/ˈsɪɡmə/

  • nounThe eighteenth letter of the Classical and Modern Greek alphabets, the twentieth letter of Old and Ancient.
Full entry on Wiktionary →

Sigma is the eighteenth letter of the Greek alphabet. When it is used at the end of a letter-case word, the final form (ς) is used. In Ὀδυσσεύς (Odysseus), for example, the two lowercase sigmas (σ) in the center of the name are distinct from the word-final sigma (ς) at the end.

“Sigma” on Wikipedia (CC BY-SA) →

#sigma18_50 across platforms

every network with a public tag surface

Follow #sigma18_50 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/sigma18_50