Pith Number

pith:VQSZGVR3

pith:2013:VQSZGVR3RNS3E44ZAORYNEUIQD

not attested not anchored not stored refs pending

Social interactions dominate speed control in driving natural flocks toward criticality

Aleksandra Walczak, Andrea Cavagna, Edmondo Silvestri, Irene Giardina, Massimiliano Viale, Oliver Pohl, Thierry Mora, William Bialek

arxiv:1307.5563 v1 · 2013-07-21 · physics.bio-ph · cond-mat.stat-mech · 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{VQSZGVR3RNS3E44ZAORYNEUIQD}

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	2026-05-18T01:48:41.977970Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac2593563b8b65b2739903a386928880f5e1625a18f5c965d8024a72e9e91efa

Aliases

arxiv: 1307.5563 · arxiv_version: 1307.5563v1 · doi: 10.48550/arxiv.1307.5563 · pith_short_12: VQSZGVR3RNS3 · pith_short_16: VQSZGVR3RNS3E44Z · pith_short_8: VQSZGVR3

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/VQSZGVR3RNS3E44ZAORYNEUIQD \
  | 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: ac2593563b8b65b2739903a386928880f5e1625a18f5c965d8024a72e9e91efa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "853d0dba1175bfad9fbc4a4cc364370a70abde5c8cb91bba0d25c3055e780338",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2013-07-21T20:02:40Z",
    "title_canon_sha256": "f2f32558c5584581a468baa5c24a2b3835cdc678c9c4b1a85ebc411c2259c1d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5563",
    "kind": "arxiv",
    "version": 1
  }
}