Pith Number

pith:5PSOFNZ3

pith:2012:5PSOFNZ3WEEWZQYCOGVJB2B5J7

not attested not anchored not stored refs pending

Languages cool as they expand: Allometric scaling and the decreasing need for new words

Alexander M. Petersen, H. Eugene Stanley, Joel N. Tenenbaum, Matjaz Perc, Shlomo Havlin

arxiv:1212.2616 v1 · 2012-12-11 · physics.soc-ph · cond-mat.stat-mech · cs.CL · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5PSOFNZ3WEEWZQYCOGVJB2B5J7}

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	2026-05-18T03:38:44.095457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebe4e2b73bb1096cc30271aa90e83d4ffbc04ef50be1b8edc9067d7786fb6e42

Aliases

arxiv: 1212.2616 · arxiv_version: 1212.2616v1 · doi: 10.48550/arxiv.1212.2616 · pith_short_12: 5PSOFNZ3WEEW · pith_short_16: 5PSOFNZ3WEEWZQYC · pith_short_8: 5PSOFNZ3

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/5PSOFNZ3WEEWZQYCOGVJB2B5J7 \
  | 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: ebe4e2b73bb1096cc30271aa90e83d4ffbc04ef50be1b8edc9067d7786fb6e42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18a0cfa726b500f6b390b7e363fde1428bcb7c5bdacaec53cbf48a500adc3637",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "cs.CL",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2012-12-11T20:32:05Z",
    "title_canon_sha256": "806fb6284530d63851289228299eaf7184d17b9522284b022416a213b5a45da9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2616",
    "kind": "arxiv",
    "version": 1
  }
}