Pith Number

pith:QH2YCZV3

pith:2008:QH2YCZV3ZABE4EH7VLRYK3REI7

not attested not anchored not stored refs pending

Evolution of Cooperation and Coordination in a Dynamically Networked Society

Enea Pestelacci, Leslie Luthi, Marco Tomassini

arxiv:0805.0481 v1 · 2008-05-05 · 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{QH2YCZV3ZABE4EH7VLRYK3REI7}

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	2026-05-18T04:34:55.626539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81f58166bbc8024e10ffaae3856e2447f488df955ed021f53d2013dcc465c4b0

Aliases

arxiv: 0805.0481 · arxiv_version: 0805.0481v1 · doi: 10.48550/arxiv.0805.0481 · pith_short_12: QH2YCZV3ZABE · pith_short_16: QH2YCZV3ZABE4EH7 · pith_short_8: QH2YCZV3

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/QH2YCZV3ZABE4EH7VLRYK3REI7 \
  | 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: 81f58166bbc8024e10ffaae3856e2447f488df955ed021f53d2013dcc465c4b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0033455697700cf13c29eff6ed95cac2111b01edf8c30bd2dbbf3e202dd63808",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2008-05-05T08:28:54Z",
    "title_canon_sha256": "94e9dea9451b8d62d5398fb4403862144ac2af3da1bf543be1bef170372413d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.0481",
    "kind": "arxiv",
    "version": 1
  }
}