Pith Number

pith:WKEQAWVY

pith:2013:WKEQAWVYR37FAC6RGDZKEHRHEX

not attested not anchored not stored refs pending

Correlation of positive and negative reciprocity fails to confer an evolutionary advantage: Phase transitions to elementary strategies

Attila Szolnoki, Matjaz Perc

arxiv:1310.5139 v1 · 2013-10-18 · physics.soc-ph · cs.GT · 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{WKEQAWVYR37FAC6RGDZKEHRHEX}

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	2026-05-18T03:06:04.679825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b289005ab88efe500bd130f2a21e2725e82bca67e6d3ee4339e08f14df7771e3

Aliases

arxiv: 1310.5139 · arxiv_version: 1310.5139v1 · doi: 10.48550/arxiv.1310.5139 · pith_short_12: WKEQAWVYR37F · pith_short_16: WKEQAWVYR37FAC6R · pith_short_8: WKEQAWVY

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/WKEQAWVYR37FAC6RGDZKEHRHEX \
  | 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: b289005ab88efe500bd130f2a21e2725e82bca67e6d3ee4339e08f14df7771e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8707a4479e9ab627868b4c57d5449a47c906e26ba38b44b981a9393ad4f39931",
    "cross_cats_sorted": [
      "cs.GT",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2013-10-18T19:54:29Z",
    "title_canon_sha256": "9f381fe29dcfee2769446b3a7ce575f45c6b8e7dc5510a055498c457f4a11e48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.5139",
    "kind": "arxiv",
    "version": 1
  }
}