Pith Number

pith:ZEMPGVKR

pith:2013:ZEMPGVKRNRKA3R2RLKI74GOCSB

not attested not anchored not stored refs pending

Mobility, fitness collection, and the breakdown of cooperation

Anatolij Gelimson, Erwin Frey, Jonas Cremer

arxiv:1301.7682 v3 · 2013-01-31 · q-bio.PE · physics.bio-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{ZEMPGVKRNRKA3R2RLKI74GOCSB}

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	2026-05-18T03:27:52.101279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c918f355516c540dc7515a91fe19c2907d08e41784f7ea24a83184a2c8c1d8b0

Aliases

arxiv: 1301.7682 · arxiv_version: 1301.7682v3 · doi: 10.48550/arxiv.1301.7682 · pith_short_12: ZEMPGVKRNRKA · pith_short_16: ZEMPGVKRNRKA3R2R · pith_short_8: ZEMPGVKR

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/ZEMPGVKRNRKA3R2RLKI74GOCSB \
  | 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: c918f355516c540dc7515a91fe19c2907d08e41784f7ea24a83184a2c8c1d8b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d079aa2b83cd87866b593e9f19e40ed5feedcdd3cf6e9eea2d35f7d193cd8e75",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2013-01-31T16:58:40Z",
    "title_canon_sha256": "6325feb72c984056d86d728daa73bf6fe7a494b6e9b1e5f6e170ec3633f74004"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.7682",
    "kind": "arxiv",
    "version": 3
  }
}