#19c3

Live, measured metrics for the hashtag #19c3 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 #19c3

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.

$2,449.80/ year · 4-character #name
Claim #19c3 — $2,449.80/yr→
Annual, renews each year
Buy on hashtag.space (web3)
one-timepay once, yours for life
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
5
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 5
14
Avg reactions / post
Mastodon · last 5

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-07-27 14:07 UTC
0
07-21
0
07-22
0
07-23
0
07-24
0
07-25
0
07-26
0
07-27

0 uses by 0 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 2026-07-27 14:07 UTC
#f28c19c3acd
1 uses · 1 accounts / 7d
#f2d3c89be19
0 uses · 0 accounts / 7d
#ff01a3d19c3
0 uses · 0 accounts / 7d
#f19a9c3b0ee
0 uses · 0 accounts / 7d
#19C0B3
0 uses · 0 accounts / 7d
#3B8C19
0 uses · 0 accounts / 7d
#1C3F19
0 uses · 0 accounts / 7d
#CF19C3
0 uses · 0 accounts / 7d
#19C5C3
0 uses · 0 accounts / 7d
#E3C19F
0 uses · 0 accounts / 7d
#19C3BA
0 uses · 0 accounts / 7d
#9B3C19
0 uses · 0 accounts / 7d

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-27 14:07 UTC

Everything below is measured over the latest 5 public posts (spanning ~54927 hours).

Posting hours (UTC)

00:0012:0023:00

Languages: English (3) · German (2)

Avg boosts / post: 3.2

Top of the latest posts

  • A friend of mine recently sent me that photo of myself while sitting in the NOC, setting up infrastructure for the #19C3 at #HAKP. I just realized it’s 23 years and twenty C3-Congresses ago. My first C3 was #13c3 in Hamburg, btw… However :-

    THS@[email protected]♥ 70↻ 142025-12-02 21:10 UTCView post →

  • #39c3 coming up. My first was #19c3, I think i've missed 2 congresses and 0 camps since then.

    Dmytri@[email protected]♥ 0↻ 12025-12-25 16:17 UTCView post →

  • Stellt sich raus dass bei einer Reihe meiner alten Congress-Vortraege der Name fehlt und die Vorträge damit vielleicht nicht so gut gefunden werden. Update angefragt @c3voc https://media.ccc.de/v/099_GPL_fuer_Anfaenger https://media.ccc.de/

    hubertf@[email protected]♥ 0↻ 02024-06-07 13:21 UTCView post →

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/19c3