Pith Number

pith:37AOY4AO

pith:2018:37AOY4AOHR3V7ABTQO664SBSEF

not attested not anchored not stored refs pending

A Combinatorial Problem Arising From Ecology: the Maximum Empower Problem

Chams Lahlou, Laurent Truffet

arxiv:1802.05974 v1 · 2018-02-16 · cs.DM · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{37AOY4AOHR3V7ABTQO664SBSEF}

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	2026-05-18T00:23:10.286088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfc0ec700e3c775f803383bdee48322157ab2f90ae18a2546a7d5dc395a7c79a

Aliases

arxiv: 1802.05974 · arxiv_version: 1802.05974v1 · doi: 10.48550/arxiv.1802.05974 · pith_short_12: 37AOY4AOHR3V · pith_short_16: 37AOY4AOHR3V7ABT · pith_short_8: 37AOY4AO

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/37AOY4AOHR3V7ABTQO664SBSEF \
  | 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: dfc0ec700e3c775f803383bdee48322157ab2f90ae18a2546a7d5dc395a7c79a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab302fb8b5b4f2a3b751f8e910ebee86a10b6a4a824d46fac580caf08cddf941",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-02-16T15:20:37Z",
    "title_canon_sha256": "8fd17f3bdfde48fd814879676fdc91ee15e0e88a2651ccb66f11a60f749e879f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05974",
    "kind": "arxiv",
    "version": 1
  }
}