Pith Number

pith:S6XXD2EV

pith:2009:S6XXD2EVKA4AV22X7TYZKDYU5W

not attested not anchored not stored refs pending

Reducing the Heterogeneity of Payoffs: an Effective Way to Promote Cooperation in Prisoner's Dilemma Game

Bing-Hong Wang, Han-Xin Yang, Joseph Wakeling, Luo-Luo Jiang, Ming Zhao, Tao Zhou

arxiv:0905.1795 v1 · 2009-05-12 · physics.soc-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{S6XXD2EVKA4AV22X7TYZKDYU5W}

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	2026-05-18T02:13:45.597764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97af71e89550380aeb57fcf1950f14edaa9621e8b29e85f815cacbbbfb657ee4

Aliases

arxiv: 0905.1795 · arxiv_version: 0905.1795v1 · doi: 10.48550/arxiv.0905.1795 · pith_short_12: S6XXD2EVKA4A · pith_short_16: S6XXD2EVKA4AV22X · pith_short_8: S6XXD2EV

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/S6XXD2EVKA4AV22X7TYZKDYU5W \
  | 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: 97af71e89550380aeb57fcf1950f14edaa9621e8b29e85f815cacbbbfb657ee4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf21d8d6a68d137eab94d9c192fb96fbab172ba3d5cbf53a2d757848a04e1542",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2009-05-12T09:28:28Z",
    "title_canon_sha256": "fd1de334d61c90653a7262c4b1558a5ea8deef1b0e44a2c800169b32f124277f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1795",
    "kind": "arxiv",
    "version": 1
  }
}