Pith Number

pith:FDODT6ZQ

pith:2012:FDODT6ZQ5B7WBEILPGTGEE2Y4U

not attested not anchored not stored refs pending

Landing together: how flocks arrive at a coherent action in time and space in the presence of perturbations

Bence Ferdinandy, Daniel Abel, Kunal Bhattacharya, Tamas Vicsek

arxiv:1202.3037 v2 · 2012-02-11 · 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{FDODT6ZQ5B7WBEILPGTGEE2Y4U}

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	2026-05-18T04:00:26.318800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28dc39fb30e87f60910b79a6621358e519779b4d24f42f28dd06ad7ded9ec36f

Aliases

arxiv: 1202.3037 · arxiv_version: 1202.3037v2 · doi: 10.48550/arxiv.1202.3037 · pith_short_12: FDODT6ZQ5B7W · pith_short_16: FDODT6ZQ5B7WBEIL · pith_short_8: FDODT6ZQ

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/FDODT6ZQ5B7WBEILPGTGEE2Y4U \
  | 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: 28dc39fb30e87f60910b79a6621358e519779b4d24f42f28dd06ad7ded9ec36f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae03a7b08390f987ded72b7401f708cb65e4b3ac6974e6da7fd0d493ed2c89de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2012-02-11T19:45:30Z",
    "title_canon_sha256": "32f95da7aab65845981198a078452c80989af4d842ffbe5dd57193079ede9e61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3037",
    "kind": "arxiv",
    "version": 2
  }
}