Pith Number

pith:G33JNIVC

pith:2012:G33JNIVCGF4M45GGP73WZ4TEAF

not attested not anchored not stored refs pending

Density outbursts in a food web model with closed nutrient cycle

Janusz Szwabi\'nski

arxiv:1212.5538 v1 · 2012-12-21 · q-bio.PE · physics.bio-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{G33JNIVCGF4M45GGP73WZ4TEAF}

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	2026-05-18T01:52:29.155790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36f696a2a23178ce74c67ff76cf264015e91312ec2c1c08615cd6db163447309

Aliases

arxiv: 1212.5538 · arxiv_version: 1212.5538v1 · doi: 10.48550/arxiv.1212.5538 · pith_short_12: G33JNIVCGF4M · pith_short_16: G33JNIVCGF4M45GG · pith_short_8: G33JNIVC

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/G33JNIVCGF4M45GGP73WZ4TEAF \
  | 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: 36f696a2a23178ce74c67ff76cf264015e91312ec2c1c08615cd6db163447309

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "662a342f56ef8b54d09e7b53a2798fd207dd4ea26ab3c368e09000cfefa3b8dd",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2012-12-21T17:47:46Z",
    "title_canon_sha256": "90e53f5ac4058163e1ca548568896845c9bd730dcb8ce9d78699892ae733d35b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.5538",
    "kind": "arxiv",
    "version": 1
  }
}