#issn

Live, measured metrics for the hashtag #issn 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 #issn

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 #issn — $2,449.80/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
13
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 13
0
Avg reactions / post
Mastodon · last 13
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-10-29 08:46 UTC
0
10-23
0
10-24
0
10-25
0
10-26
0
10-27
0
10-28
0
10-29

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 2026-10-29 08:46 UTC

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-10-29 08:46 UTC

Everything below is measured over the latest 13 public posts (spanning ~30101 hours).

Posting hours (UTC) — busiest: 01:00

00:0012:0023:00

Languages: English (11) · French (1) · Ukrainian (1)

Avg boosts / post: 0.6

Top of the latest posts

  • How to add ISSN metadata to a web page __is a good idea. Why not register your blog in the ISSN ? I am looking to do it https://fundor333.com/micro/2026/04/issn-for-a-blog-/ #blogging #issn #blog

    Fundor333@[email protected]♥ 0↻ 12026-04-22 21:37 UTCView post →
  • Today, I learned that a "bookazine" is a thing... it involves elements of both a book and a magazine. Unlike a magazine, it can use an ISBNs, whereas magazines use ISSNs... Also Bookazine [https://bookazine.com] is a global distributor... s

    tinker。✧𓃦˚☽wolf@[email protected]♥ 0↻ 02025-11-07 01:01 UTCView post →
  • https://forms.gle/T8vapxoknazG2VBb9 Call for Papers: International Journal of Business and Economics Research (IJBER) e-ISSN: 2455-3921 #onlinepublishing #onlinejournal #peerreview #Economics #Business #ISSN #openaccesspublisher #certificat

    drbgrpublications@[email protected]♥ 0↻ 02025-11-01 12:43 UTCView post →

What “issn” means

Wikipedia

An International Standard Serial Number (ISSN) is an eight-digit code to uniquely identify a periodical publication (periodical), such as a magazine. The ISSN is especially helpful in distinguishing between serials with the same title. ISSNs are used in ordering, cataloging, interlibrary loans, and other practices in connection with serial literature.

“ISSN” on Wikipedia (CC BY-SA) →

#issn across platforms

every network with a public tag surface

Follow #issn 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/issn