Pith Number

pith:I34JU5KQ

pith:2012:I34JU5KQQRV42JPVMFBFWZ27SK

not attested not anchored not stored refs pending

Universities Scale Like Cities

Anthony F. J. van Raan

arxiv:1211.5124 v1 · 2012-11-21 · nlin.AO · cs.DL · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I34JU5KQQRV42JPVMFBFWZ27SK}

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	2026-05-18T01:53:01.817353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46f89a7550846bcd25f561425b675f92a6efa8af59c78b522bdd4b4d19aa39a3

Aliases

arxiv: 1211.5124 · arxiv_version: 1211.5124v1 · doi: 10.48550/arxiv.1211.5124 · pith_short_12: I34JU5KQQRV4 · pith_short_16: I34JU5KQQRV42JPV · pith_short_8: I34JU5KQ

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/I34JU5KQQRV42JPVMFBFWZ27SK \
  | 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: 46f89a7550846bcd25f561425b675f92a6efa8af59c78b522bdd4b4d19aa39a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b98ecad1827216faa171973d53198b5e613d968900772ab678a3a63cafe9f901",
    "cross_cats_sorted": [
      "cs.DL",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.AO",
    "submitted_at": "2012-11-21T19:51:03Z",
    "title_canon_sha256": "8fccc31d408c8fbf599bd6d33a3e8e45d5e1acf41e5eb3dc635ba362b7373e4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.5124",
    "kind": "arxiv",
    "version": 1
  }
}