Pith Number

pith:N3DLOWL3

pith:2012:N3DLOWL3LYEMIEKXMQFWRGYCDZ

not attested not anchored not stored refs pending

Oh sister, where art thou? Spatial population structure and the evolution of an altruistic defence trait

Dirk Metzler, Pleuni S. Pennings, Susanne Foitzik, Tobias Pamminger

arxiv:1212.0790 v2 · 2012-12-04 · 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{N3DLOWL3LYEMIEKXMQFWRGYCDZ}

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	2026-05-18T02:42:46.771788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ec6b7597b5e08c41157640b689b021e639093855177263ef2c622042ccc159b

Aliases

arxiv: 1212.0790 · arxiv_version: 1212.0790v2 · doi: 10.48550/arxiv.1212.0790 · pith_short_12: N3DLOWL3LYEM · pith_short_16: N3DLOWL3LYEMIEKX · pith_short_8: N3DLOWL3

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/N3DLOWL3LYEMIEKXMQFWRGYCDZ \
  | 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: 6ec6b7597b5e08c41157640b689b021e639093855177263ef2c622042ccc159b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f4cd874c7c62cca0de008e5658c3474ed835f14e15e781471bc93c968965886",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2012-12-04T17:08:06Z",
    "title_canon_sha256": "a0164f43534367030056745de5fd417b5d3b0478a524f299c552beba417d3314"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.0790",
    "kind": "arxiv",
    "version": 2
  }
}