Pith Number

pith:VZY2H7GP

pith:2009:VZY2H7GPYIOXEMNECODVDQ2KOE

not attested not anchored not stored refs pending

Self-organised complex aerial displays of thousands of starlings: a model

C. Carere, C-K. Hemelrijk, H. Hildenbrandt

arxiv:0908.2677 v1 · 2009-08-19 · q-bio.QM · nlin.AO · 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{VZY2H7GPYIOXEMNECODVDQ2KOE}

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	2026-05-18T04:14:46.279054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae71a3fccfc21d7231a4138751c34a711da23cbc0f0183f1bf576b9a85ff090a

Aliases

arxiv: 0908.2677 · arxiv_version: 0908.2677v1 · doi: 10.48550/arxiv.0908.2677 · pith_short_12: VZY2H7GPYIOX · pith_short_16: VZY2H7GPYIOXEMNE · pith_short_8: VZY2H7GP

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/VZY2H7GPYIOXEMNECODVDQ2KOE \
  | 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: ae71a3fccfc21d7231a4138751c34a711da23cbc0f0183f1bf576b9a85ff090a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42b899b8beb26801f07d1bfc8a3134e7b7c1d970e782ea2550b5501d909fff24",
    "cross_cats_sorted": [
      "nlin.AO",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2009-08-19T05:32:55Z",
    "title_canon_sha256": "db140ada6fb7d19e101b85aa35edce1dfc6911646eecf89fd3d8200337b81c1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2677",
    "kind": "arxiv",
    "version": 1
  }
}