Pith Number

pith:WFKNLUEN

pith:2020:WFKNLUEN4APY3TRH4BULGXD7RV

not attested not anchored not stored refs pending

Entropy and Diversity: The Axiomatic Approach

Tom Leinster

arxiv:2012.02113 v4 · 2020-12-03 · q-bio.PE · cs.IT · math.CA · math.CT · math.IT · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WFKNLUEN4APY3TRH4BULGXD7RV}

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.

Cited by

1 paper in Pith

X-Factor: Quality Is a Dataset-Intrinsic Property

Receipt and verification

First computed	2026-07-05T09:44:02.951744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b154d5d08de01f8dce27e068b35c7f8d6ae46ee9f5426adc6c682247b46b01af

Aliases

arxiv: 2012.02113 · arxiv_version: 2012.02113v4 · doi: 10.48550/arxiv.2012.02113 · pith_short_12: WFKNLUEN4APY · pith_short_16: WFKNLUEN4APY3TRH · pith_short_8: WFKNLUEN

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/WFKNLUEN4APY3TRH4BULGXD7RV \
  | 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: b154d5d08de01f8dce27e068b35c7f8d6ae46ee9f5426adc6c682247b46b01af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18c4b7ec76a939e49d50b7aa6eede8117b106702e2658d6e7f0f6736a8609535",
    "cross_cats_sorted": [
      "cs.IT",
      "math.CA",
      "math.CT",
      "math.IT",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2020-12-03T17:47:44Z",
    "title_canon_sha256": "88d9beddd28f20c0f9a3c399daa88febdee79a18dc871faf9124a3a7d3105f3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.02113",
    "kind": "arxiv",
    "version": 4
  }
}