Pith Number

pith:EHUNDYIB

pith:2015:EHUNDYIBG4AFG63DGA4CGDXBL7

not attested not anchored not stored refs pending

Maximizing diversity in biology and beyond

Mark W. Meckes, Tom Leinster

arxiv:1512.06314 v1 · 2015-12-20 · cs.IT · math.IT · q-bio.PE · 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{EHUNDYIBG4AFG63DGA4CGDXBL7}

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	2026-05-18T00:36:10.008681Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21e8d1e1013700537b633038230ee15fffa7fbe4ac55771af74d46361483318b

Aliases

arxiv: 1512.06314 · arxiv_version: 1512.06314v1 · doi: 10.48550/arxiv.1512.06314 · pith_short_12: EHUNDYIBG4AF · pith_short_16: EHUNDYIBG4AFG63D · pith_short_8: EHUNDYIB

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/EHUNDYIBG4AFG63DGA4CGDXBL7 \
  | 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: 21e8d1e1013700537b633038230ee15fffa7fbe4ac55771af74d46361483318b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e96eb2008fbce188791c56262d0edf08d53ea301e2feadab22a150c158a3e6b",
    "cross_cats_sorted": [
      "math.IT",
      "q-bio.PE",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-12-20T03:37:54Z",
    "title_canon_sha256": "85c522e2b9a734eaf709388223d4c84f345e9c0fdfd424b7d54ef18159d3b067"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.06314",
    "kind": "arxiv",
    "version": 1
  }
}