Pith Number

pith:AYPHDZCR

pith:2004:AYPHDZCRU4QPDMLXCTNBLYIQLG

not attested not anchored not stored refs pending

Evolutionary ecology in-silico:evolving foodwebs, migrating population and speciation

Ambarish Kunwar, Debashish Chowdhury, Dietrich Stauffer

arxiv:q-bio/0403040 v1 · 2004-03-27 · 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{AYPHDZCRU4QPDMLXCTNBLYIQLG}

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	2026-07-04T16:50:08.477529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

061e71e451a720f1b17714da15e110598cb71fc17d6dd182758179de0e52547f

Aliases

arxiv: q-bio/0403040 · arxiv_version: q-bio/0403040v1 · doi: 10.48550/arxiv.q-bio/0403040 · pith_short_12: AYPHDZCRU4QP · pith_short_16: AYPHDZCRU4QPDMLX · pith_short_8: AYPHDZCR

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/AYPHDZCRU4QPDMLXCTNBLYIQLG \
  | 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: 061e71e451a720f1b17714da15e110598cb71fc17d6dd182758179de0e52547f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3adee942bc07605080af1984c6b641bb69eb9c882c12db31fb8830538ad0fc13",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2004-03-27T07:40:43Z",
    "title_canon_sha256": "d34c51eeb3ebc18b553813a890380e588631a9c771e87926f6e0dcca92007407"
  },
  "schema_version": "1.0",
  "source": {
    "id": "q-bio/0403040",
    "kind": "arxiv",
    "version": 1
  }
}