Pith Number

pith:DJPZP6VD

pith:2018:DJPZP6VDVIPHIMTBDKIH3O7E53

not attested not anchored not stored refs pending

Modeling our survival in a zombie apocalypse

Fernando Sato, Jo\~ao Paulo Almeida de Mencon\c{c}a, Leonardo da Motta de Vasconcellos Teixeira, Lohan Rodrigues Narcizo Ferreira

arxiv:1802.10443 v2 · 2018-02-19 · physics.pop-ph · math.DS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DJPZP6VDVIPHIMTBDKIH3O7E53}

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	2026-05-17T23:47:44.380158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a5f97faa3aa1e7432611a907dbbe4eee01152d079adbadc4a08182516e64b74

Aliases

arxiv: 1802.10443 · arxiv_version: 1802.10443v2 · doi: 10.48550/arxiv.1802.10443 · pith_short_12: DJPZP6VDVIPH · pith_short_16: DJPZP6VDVIPHIMTB · pith_short_8: DJPZP6VD

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/DJPZP6VDVIPHIMTBDKIH3O7E53 \
  | 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: 1a5f97faa3aa1e7432611a907dbbe4eee01152d079adbadc4a08182516e64b74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27b5b9d1d09b466622f7048756622b3edcb9439d176115bfb73784e67fefa720",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2018-02-19T20:04:11Z",
    "title_canon_sha256": "6ad9dc9256a1c6df08eb67c6daae15e87b96d6edcce3ed1c0aeb6a730c1450e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.10443",
    "kind": "arxiv",
    "version": 2
  }
}