Pith Number

pith:BIRV3IPX

pith:2013:BIRV3IPXJTNGQ3PPK7RXWV2L4Q

not attested not anchored not stored refs pending

Polar vs. apolar alignment in systems of polar self-propelled particles

Fernando Peruani, Francesco Ginelli, Hugues Chate, Markus Bar

arxiv:1302.0267 v1 · 2013-02-01 · physics.bio-ph · cond-mat.soft

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BIRV3IPXJTNGQ3PPK7RXWV2L4Q}

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	2026-05-18T01:51:51.279872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a235da1f74cda686def57e37b574be41aeb874dd77c34737c2312918bc2f0c8

Aliases

arxiv: 1302.0267 · arxiv_version: 1302.0267v1 · doi: 10.48550/arxiv.1302.0267 · pith_short_12: BIRV3IPXJTNG · pith_short_16: BIRV3IPXJTNGQ3PP · pith_short_8: BIRV3IPX

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/BIRV3IPXJTNGQ3PPK7RXWV2L4Q \
  | 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: 0a235da1f74cda686def57e37b574be41aeb874dd77c34737c2312918bc2f0c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3070d504d828fff4ef33a0f43193c197fb8380a09883c5aba18c95282e55010",
    "cross_cats_sorted": [
      "cond-mat.soft"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2013-02-01T20:14:55Z",
    "title_canon_sha256": "7763633788ac41090a41141ef5d217ad7063d393ec985cf41e800ce65152c5ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.0267",
    "kind": "arxiv",
    "version": 1
  }
}