Pith Number

pith:U7MEXQ4G

pith:2013:U7MEXQ4GLJTWCUCECO3WSQEKEP

not attested not anchored not stored refs pending

A nonsmooth two-sex population model

Eduardo Garibaldi, Marcelo Sobottka

arxiv:1305.2622 v4 · 2013-05-12 · 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{U7MEXQ4GLJTWCUCECO3WSQEKEP}

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	2026-05-18T02:50:32.499252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7d84bc3865a6761504413b769408a23c3bc1ba2c3582f23ecc36859a782fb5a

Aliases

arxiv: 1305.2622 · arxiv_version: 1305.2622v4 · doi: 10.48550/arxiv.1305.2622 · pith_short_12: U7MEXQ4GLJTW · pith_short_16: U7MEXQ4GLJTWCUCE · pith_short_8: U7MEXQ4G

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/U7MEXQ4GLJTWCUCECO3WSQEKEP \
  | 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: a7d84bc3865a6761504413b769408a23c3bc1ba2c3582f23ecc36859a782fb5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcf90fd8dfebaa9cc4d137e3615ace3f5c42ca8b7e99ed6d6502bdc56b54d639",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2013-05-12T19:16:23Z",
    "title_canon_sha256": "560b65a1f3842b1b6c9c321713ad58f3e3b665876d90baadfb32a7cbede1d835"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.2622",
    "kind": "arxiv",
    "version": 4
  }
}