Pith Number

pith:F6VIW6VZ

pith:2013:F6VIW6VZTIRVOLD3BODQF2XRX6

not attested not anchored not stored refs pending

Scarcity may promote cooperation in populations of simple agents

J. Camacho, R. J. Requejo

arxiv:1312.3450 v1 · 2013-12-12 · physics.bio-ph · physics.soc-ph · 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{F6VIW6VZTIRVOLD3BODQF2XRX6}

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	2026-05-18T03:04:58.511997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2faa8b7ab99a23572c7b0b8702eaf1bfbd4a657ce8ccd20aa92c80f73924fcfd

Aliases

arxiv: 1312.3450 · arxiv_version: 1312.3450v1 · doi: 10.48550/arxiv.1312.3450 · pith_short_12: F6VIW6VZTIRV · pith_short_16: F6VIW6VZTIRVOLD3 · pith_short_8: F6VIW6VZ

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/F6VIW6VZTIRVOLD3BODQF2XRX6 \
  | 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: 2faa8b7ab99a23572c7b0b8702eaf1bfbd4a657ce8ccd20aa92c80f73924fcfd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86b4256fe72e234afc1d64440cafde39aebdb86d4a3ca335721856de73e1e0b7",
    "cross_cats_sorted": [
      "physics.soc-ph",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2013-12-12T11:27:35Z",
    "title_canon_sha256": "236e7764a232a52dc3d6f2a54feb1da6b1de554e485abb0e61dceaf646600d23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.3450",
    "kind": "arxiv",
    "version": 1
  }
}