Pith Number

pith:COGQL5LR

pith:2010:COGQL5LR7LJF23VA2GKZ3EUSPX

not attested not anchored not stored refs pending

Chemotactic predator-prey dynamics

Ankush Sengupta, Hartmut L\"owen, Tobias Kruppa

arxiv:1009.5521 v1 · 2010-09-28 · q-bio.PE · physics.bio-ph · physics.med-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{COGQL5LR7LJF23VA2GKZ3EUSPX}

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	2026-05-18T02:05:16.241822Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

138d05f571fad25d6ea0d1959d92927df9a4e1c2ad61cc0c3a785e8bc9dc0baa

Aliases

arxiv: 1009.5521 · arxiv_version: 1009.5521v1 · doi: 10.48550/arxiv.1009.5521 · pith_short_12: COGQL5LR7LJF · pith_short_16: COGQL5LR7LJF23VA · pith_short_8: COGQL5LR

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/COGQL5LR7LJF23VA2GKZ3EUSPX \
  | 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: 138d05f571fad25d6ea0d1959d92927df9a4e1c2ad61cc0c3a785e8bc9dc0baa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dce1cc4c368af63b15cd35d9a4ab55791c3e1a13ef82cedd89f2832da03c8cc1",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "physics.med-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2010-09-28T10:25:08Z",
    "title_canon_sha256": "c6e5da99762ce60ae9d043209ad98d1eaac4d1f0568f98936483c928ba51bc4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.5521",
    "kind": "arxiv",
    "version": 1
  }
}