Pith Number

pith:QCETF3DC

pith:2020:QCETF3DCSKDZ66WIUVG4UNAAV4

not attested not anchored not stored refs pending

Heaps' law and Heaps functions in tagged texts: Evidences of their linguistic relevance

Andr\'es Chacoma, Dami\'an H. Zanette

arxiv:2001.02178 v1 · 2020-01-07 · 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{QCETF3DCSKDZ66WIUVG4UNAAV4}

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	2026-07-05T00:30:44.901389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

808932ec6292879f7ac8a54dca3400af0126f4be1919f796ea1c90d5499ed19b

Aliases

arxiv: 2001.02178 · arxiv_version: 2001.02178v1 · doi: 10.48550/arxiv.2001.02178 · pith_short_12: QCETF3DCSKDZ · pith_short_16: QCETF3DCSKDZ66WI · pith_short_8: QCETF3DC

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/QCETF3DCSKDZ66WIUVG4UNAAV4 \
  | 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: 808932ec6292879f7ac8a54dca3400af0126f4be1919f796ea1c90d5499ed19b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db117f58e08fd550b5853172e84f76d81c78d2d124aa8594d84ce5b6017793b0",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-01-07T17:05:16Z",
    "title_canon_sha256": "d3a53d0f04c62c68656aba18e2d257738c9c446a7e2b377771415de3bc903132"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.02178",
    "kind": "arxiv",
    "version": 1
  }
}