Pith Number

pith:4PYQCUF3

pith:2016:4PYQCUF3JQOFNU7JINB7UEGKPJ

not attested not anchored not stored refs pending

An efficient method for sorting and selecting for social behaviour

Alexander Kotrschal, Alex Szorkovszky, David J.T. Sumpter, James E. Herbert Read, Kristiaan Pelckmans, Niclas Kolm

arxiv:1602.05833 v2 · 2016-02-18 · q-bio.QM · 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{4PYQCUF3JQOFNU7JINB7UEGKPJ}

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	2026-05-18T00:50:12.502885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3f10150bb4c1c56d3e94343fa10ca7a52cf9f010feb8b3027e008ca2bcd5736

Aliases

arxiv: 1602.05833 · arxiv_version: 1602.05833v2 · doi: 10.48550/arxiv.1602.05833 · pith_short_12: 4PYQCUF3JQOF · pith_short_16: 4PYQCUF3JQOFNU7J · pith_short_8: 4PYQCUF3

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/4PYQCUF3JQOFNU7JINB7UEGKPJ \
  | 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: e3f10150bb4c1c56d3e94343fa10ca7a52cf9f010feb8b3027e008ca2bcd5736

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "415f2eca6efaf65c29963e932b16d3333a3073e9bbec02841211467b6ae618ab",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2016-02-18T15:18:21Z",
    "title_canon_sha256": "926ab33b9109e101d44e477c4321f4cb0829ae928323088e490b35a0c94878a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.05833",
    "kind": "arxiv",
    "version": 2
  }
}