Pith Number

pith:2QTQYHFD

pith:2012:2QTQYHFDDU4JKZKM4CSLSEGPKQ

not attested not anchored not stored refs pending

Mesoscale symmetries explain dynamical equivalence of food webs

Helge Aufderheide, Lars Rudolf, Thilo gross

arxiv:1205.6074 v1 · 2012-05-28 · physics.bio-ph · 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{2QTQYHFDDU4JKZKM4CSLSEGPKQ}

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	2026-05-18T03:33:37.790584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4270c1ca31d3895654ce0a4b910cf54385289e72d134e6d639d29144a2cf988

Aliases

arxiv: 1205.6074 · arxiv_version: 1205.6074v1 · doi: 10.48550/arxiv.1205.6074 · pith_short_12: 2QTQYHFDDU4J · pith_short_16: 2QTQYHFDDU4JKZKM · pith_short_8: 2QTQYHFD

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/2QTQYHFDDU4JKZKM4CSLSEGPKQ \
  | 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: d4270c1ca31d3895654ce0a4b910cf54385289e72d134e6d639d29144a2cf988

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ad4a425146311f8798fac71b2cf2b4a9f16cc8a181b1aa8dd28bed302e69dce",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2012-05-28T10:33:07Z",
    "title_canon_sha256": "9c587868453407479f6e9a169a419ae21a5f0e2a99468d99448c778bf6062a56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.6074",
    "kind": "arxiv",
    "version": 1
  }
}