Pith Number

pith:EAHYTOXR

pith:2010:EAHYTOXRNPTWYABZSWL4MK3IKK

not attested not anchored not stored refs pending

Integrating neighborhoods in the evaluation of fitness promotes cooperation in the spatial prisoner's dilemma game

Lian-Zhong Zhang, Wen-Bo Du, Xian-Bin Cao, Zhen Wang

arxiv:1012.5499 v2 · 2010-12-26 · physics.soc-ph · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EAHYTOXRNPTWYABZSWL4MK3IKK}

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	2026-05-18T02:04:17.626827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

200f89baf16be76c00399597c62b6852a9071c962d58b7008b012cb20f1d45ac

Aliases

arxiv: 1012.5499 · arxiv_version: 1012.5499v2 · doi: 10.48550/arxiv.1012.5499 · pith_short_12: EAHYTOXRNPTW · pith_short_16: EAHYTOXRNPTWYABZ · pith_short_8: EAHYTOXR

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/EAHYTOXRNPTWYABZSWL4MK3IKK \
  | 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: 200f89baf16be76c00399597c62b6852a9071c962d58b7008b012cb20f1d45ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d248e203a3c8e6fe3ac99ac7795a57c7c750e08858818c1bc179248fcdae4e12",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2010-12-26T08:42:38Z",
    "title_canon_sha256": "96c8a8a1ed9c26bcd017426237a65322508d0736185666d46e30d5e903bafcac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.5499",
    "kind": "arxiv",
    "version": 2
  }
}