Pith Number

pith:Q7MXSMO5

pith:2014:Q7MXSMO5ADHBEHCEMXDR5BZK4U

not attested not anchored not stored refs pending

Defection and extortion as unexpected catalysts of unconditional cooperation in structured populations

Attila Szolnoki, Matjaz Perc

arxiv:1406.6995 v1 · 2014-06-26 · 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{Q7MXSMO5ADHBEHCEMXDR5BZK4U}

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	2026-05-18T02:48:35.536766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87d97931dd00ce121c4465c71e872ae515a0ace5ff5577a5ccdf85dc29298f3e

Aliases

arxiv: 1406.6995 · arxiv_version: 1406.6995v1 · doi: 10.48550/arxiv.1406.6995 · pith_short_12: Q7MXSMO5ADHB · pith_short_16: Q7MXSMO5ADHBEHCE · pith_short_8: Q7MXSMO5

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/Q7MXSMO5ADHBEHCEMXDR5BZK4U \
  | 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: 87d97931dd00ce121c4465c71e872ae515a0ace5ff5577a5ccdf85dc29298f3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38aecb1a7c4c5d4985811427926d5730aa8e851996f20581c7f92174c433a988",
    "cross_cats_sorted": [
      "cs.GT",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2014-06-26T19:54:24Z",
    "title_canon_sha256": "e0b6077c0972eb6f6761f296a8bcbf43563ffb7f460f4e93e3841f620ff336f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.6995",
    "kind": "arxiv",
    "version": 1
  }
}