Pith Number

pith:YXGMTQTT

pith:2014:YXGMTQTTFZIE25JMHQEGFSO4WW

not attested not anchored not stored refs pending

Boosting cooperation by involving extortion in spatial Prisoner's dilemma

Zhihai Rong, Zhi-Xi Wu

arxiv:1408.1793 v1 · 2014-08-08 · physics.soc-ph · nlin.AO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YXGMTQTTFZIE25JMHQEGFSO4WW}

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	2026-05-18T02:31:46.876684Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5ccc9c2732e504d752c3c0862c9dcb591f0e474d79dc36d4423303876c47ee7

Aliases

arxiv: 1408.1793 · arxiv_version: 1408.1793v1 · doi: 10.48550/arxiv.1408.1793 · pith_short_12: YXGMTQTTFZIE · pith_short_16: YXGMTQTTFZIE25JM · pith_short_8: YXGMTQTT

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/YXGMTQTTFZIE25JMHQEGFSO4WW \
  | 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: c5ccc9c2732e504d752c3c0862c9dcb591f0e474d79dc36d4423303876c47ee7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21fc9b5ec46097b4899e7d54817278e5a9800a1a4c68adf74ab9b205eadc4c3e",
    "cross_cats_sorted": [
      "nlin.AO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2014-08-08T09:23:28Z",
    "title_canon_sha256": "53585e7b604f9d4d8f3475f6c4c2b90ab669d49148fad9fee9a2e64c34bc8240"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.1793",
    "kind": "arxiv",
    "version": 1
  }
}