Pith Number

pith:LF2KG3LG

pith:2010:LF2KG3LGKJQUNEAZLR5OYEACQC

not attested not anchored not stored refs pending

Darwinian Evolution of Cooperation via Punishment in the "Public Goods" Game

Arend Hintze, Christoph Adami (KGI)

arxiv:1006.2903 v1 · 2010-06-15 · q-bio.PE · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LF2KG3LGKJQUNEAZLR5OYEACQC}

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	2026-05-18T04:33:07.341087Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5974a36d6652614690195c7aec100280b8cef1a7a75d2ab574720147c5b8bf89

Aliases

arxiv: 1006.2903 · arxiv_version: 1006.2903v1 · doi: 10.48550/arxiv.1006.2903 · pith_short_12: LF2KG3LGKJQU · pith_short_16: LF2KG3LGKJQUNEAZ · pith_short_8: LF2KG3LG

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/LF2KG3LGKJQUNEAZLR5OYEACQC \
  | 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: 5974a36d6652614690195c7aec100280b8cef1a7a75d2ab574720147c5b8bf89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96c64cab53ccd95c2706d7d323a4144e7300af71ea9cbd1fba837a8bfdb66f59",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2010-06-15T07:13:29Z",
    "title_canon_sha256": "9f3d8d014fec7dd5b7045efece676de80269ae5491de224eaccad5abcd6c35b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.2903",
    "kind": "arxiv",
    "version": 1
  }
}