Pith Number

pith:W2UO3JA4

pith:2014:W2UO3JA435AH7GXEWI7KHOK4IJ

not attested not anchored not stored refs pending

Of course we share! Testing Assumptions about Social Tagging Systems

Andreas Hotho, Daniel Zoller, Markus Strohmaier, Philipp Singer, Stephan Doerfel, Thomas Niebler

arxiv:1401.0629 v3 · 2014-01-03 · cs.IR · cs.DL · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W2UO3JA435AH7GXEWI7KHOK4IJ}

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	2026-05-18T02:55:20.336084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6a8eda41cdf407f9ae4b23ea3b95c424a9ea161b8e09f1aa98349e188313d75

Aliases

arxiv: 1401.0629 · arxiv_version: 1401.0629v3 · doi: 10.48550/arxiv.1401.0629 · pith_short_12: W2UO3JA435AH · pith_short_16: W2UO3JA435AH7GXE · pith_short_8: W2UO3JA4

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/W2UO3JA435AH7GXEWI7KHOK4IJ \
  | 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: b6a8eda41cdf407f9ae4b23ea3b95c424a9ea161b8e09f1aa98349e188313d75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "090c58c8c13c06d34324ee25aa9d98354b023c04d5b8ba1c29c565e08728de3c",
    "cross_cats_sorted": [
      "cs.DL",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2014-01-03T11:59:34Z",
    "title_canon_sha256": "2b557a281ff0adf34675c1ce767ffb1311ce67582f4c118d4eff1652769f229c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0629",
    "kind": "arxiv",
    "version": 3
  }
}