Pith Number

pith:KU6A5WAW

pith:2011:KU6A5WAWDQYUL75ACHIB25AZZ7

not attested not anchored not stored refs pending

How the competitive altruism leads to bistable homogeneous states of cooperation or defection

A. Jarynowski, K. Kulakowski, P. Gawronski

arxiv:1105.3600 v1 · 2011-05-18 · 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{KU6A5WAWDQYUL75ACHIB25AZZ7}

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	2026-05-18T03:46:59.161414Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

553c0ed8161c3145ffa011d01d7419cffa7c28ee49e60fbe75727e7b948d3da6

Aliases

arxiv: 1105.3600 · arxiv_version: 1105.3600v1 · doi: 10.48550/arxiv.1105.3600 · pith_short_12: KU6A5WAWDQYU · pith_short_16: KU6A5WAWDQYUL75A · pith_short_8: KU6A5WAW

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/KU6A5WAWDQYUL75ACHIB25AZZ7 \
  | 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: 553c0ed8161c3145ffa011d01d7419cffa7c28ee49e60fbe75727e7b948d3da6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdaee8e8eba187c6ac989c2deee5d33ac729c5262876973585367533517fa4a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2011-05-18T12:13:19Z",
    "title_canon_sha256": "a2ed2e63232755d248cd323503111c8f6ebf2a69653b7ba736671d01631b7097"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.3600",
    "kind": "arxiv",
    "version": 1
  }
}