Pith Number

pith:SNL7PSZ5

pith:2014:SNL7PSZ55FUD7IDX7IPY2RYUDY

not attested not anchored not stored refs pending

Zipf's law for word frequencies: word forms versus lemmas in long texts

Alvaro Corral, Gemma Boleda, Ramon Ferrer-i-Cancho

arxiv:1407.8322 v2 · 2014-07-31 · physics.soc-ph · cs.CL · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SNL7PSZ55FUD7IDX7IPY2RYUDY}

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	2026-05-18T01:37:02.235023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9357f7cb3de9683fa077fa1f8d47141e24e399b44dd7541178f4a49c4a41fafa

Aliases

arxiv: 1407.8322 · arxiv_version: 1407.8322v2 · doi: 10.48550/arxiv.1407.8322 · pith_short_12: SNL7PSZ55FUD · pith_short_16: SNL7PSZ55FUD7IDX · pith_short_8: SNL7PSZ5

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/SNL7PSZ55FUD7IDX7IPY2RYUDY \
  | 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: 9357f7cb3de9683fa077fa1f8d47141e24e399b44dd7541178f4a49c4a41fafa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "157f47d67c0e0cc157419ab332ebe907edb9cde1ad961263404a62629f9a6cad",
    "cross_cats_sorted": [
      "cs.CL",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2014-07-31T09:02:15Z",
    "title_canon_sha256": "988e669f36c76b9456bfaa85d7695585eb329b444187031dfc396dbd210ef71a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.8322",
    "kind": "arxiv",
    "version": 2
  }
}