Pith Number

pith:S4WH2YU7

pith:2013:S4WH2YU7GYK4OB6T32F7QIBE3Y

not attested not anchored not stored refs pending

Spreading of cooperative behaviour across interdependent groups

Luo-Luo Jiang, Matjaz Perc

arxiv:1310.4166 v1 · 2013-10-15 · physics.soc-ph · cs.SI · 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{S4WH2YU7GYK4OB6T32F7QIBE3Y}

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	2026-05-18T03:10:24.903694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

972c7d629f3615c707d3de8bf82024de31d5aed08583b1330c8b5648d05cd46f

Aliases

arxiv: 1310.4166 · arxiv_version: 1310.4166v1 · doi: 10.48550/arxiv.1310.4166 · pith_short_12: S4WH2YU7GYK4 · pith_short_16: S4WH2YU7GYK4OB6T · pith_short_8: S4WH2YU7

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/S4WH2YU7GYK4OB6T32F7QIBE3Y \
  | 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: 972c7d629f3615c707d3de8bf82024de31d5aed08583b1330c8b5648d05cd46f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be3d92e86d6e9632565ad290c3a3ac2b99c933ebb0c375346ce4b3a39401fbe4",
    "cross_cats_sorted": [
      "cs.SI",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2013-10-15T19:53:51Z",
    "title_canon_sha256": "b28c8e4431be57f1f3cf767c96223a4f3c9416c6d9e3427d6f1b2003c3cc9df0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.4166",
    "kind": "arxiv",
    "version": 1
  }
}