Pith Number

pith:EDFNWXIB

pith:2019:EDFNWXIB4OCH4MLWQQCQVLCF4E

not attested not anchored not stored refs pending

Hashtag Usage in a Geographically-Local Microblogging App

Helge Reelfs, Niklas Henckell, Oliver Hohlfeld, Timon Mohaupt

arxiv:1903.04272 v1 · 2019-03-11 · cs.SI · cs.CY · cs.NI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EDFNWXIB4OCH4MLWQQCQVLCF4E}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:51:35.965263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20cadb5d01e3847e317684050aac45e1305c19a87a9c64fcf784423b2cc5a2e0

Aliases

arxiv: 1903.04272 · arxiv_version: 1903.04272v1 · doi: 10.48550/arxiv.1903.04272 · pith_short_12: EDFNWXIB4OCH · pith_short_16: EDFNWXIB4OCH4MLW · pith_short_8: EDFNWXIB

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/EDFNWXIB4OCH4MLWQQCQVLCF4E \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 20cadb5d01e3847e317684050aac45e1305c19a87a9c64fcf784423b2cc5a2e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "214a18246e15680716d83dd6a0175278d93b9f7418206f4b95af77e32f9936c6",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.NI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2019-03-11T13:06:32Z",
    "title_canon_sha256": "60dbb84a1a7a5f1a291c5668baf4346b39df3f537681d460af258da909f94454"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04272",
    "kind": "arxiv",
    "version": 1
  }
}