Pith Number

pith:OKQO5XTD

pith:2012:OKQO5XTDSJFB3BO55FWJUU4626

not attested not anchored not stored refs pending

Different reactions to adverse neighborhoods in games of cooperation

Chunyan Zhang, Franz J. Weissing, Guangming Xie, Jianlei Zhang, Long Wang, Matjaz Perc

arxiv:1205.1499 v1 · 2012-05-07 · physics.soc-ph · 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{OKQO5XTDSJFB3BO55FWJUU4626}

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	2026-05-18T03:56:11.042192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72a0eede63924a1d85dde96c9a539ed78ecc8e011d45cf41e2c522a3bc0740b5

Aliases

arxiv: 1205.1499 · arxiv_version: 1205.1499v1 · doi: 10.48550/arxiv.1205.1499 · pith_short_12: OKQO5XTDSJFB · pith_short_16: OKQO5XTDSJFB3BO5 · pith_short_8: OKQO5XTD

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/OKQO5XTDSJFB3BO55FWJUU4626 \
  | 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: 72a0eede63924a1d85dde96c9a539ed78ecc8e011d45cf41e2c522a3bc0740b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15c2ee5c7f7d52bf563628f392cdda3518b985b6d4b451d87ac7a8ac70aafb0a",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2012-05-07T19:56:38Z",
    "title_canon_sha256": "5a8677e8b4ce6c7c90713e04d20bd6a50907132a46cf01501b28423d53106e53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.1499",
    "kind": "arxiv",
    "version": 1
  }
}