Pith Number

pith:25RCM3U2

pith:2018:25RCM3U26NYX3DMAEBNB237E5V

not attested not anchored not stored refs pending

Evolution in range expansions with competition at rough boundaries

Daniel A. Beller, David R. Nelson, Mehran Kardar, Sherry Chu

arxiv:1812.09279 v1 · 2018-12-21 · physics.bio-ph · cond-mat.stat-mech

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{25RCM3U26NYX3DMAEBNB237E5V}

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	2026-05-17T23:57:44.888341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d762266e9af3717d8d80205a1d6fe4ed43e5741b55762fbfcdceebb0f5d1938d

Aliases

arxiv: 1812.09279 · arxiv_version: 1812.09279v1 · doi: 10.48550/arxiv.1812.09279 · pith_short_12: 25RCM3U26NYX · pith_short_16: 25RCM3U26NYX3DMA · pith_short_8: 25RCM3U2

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/25RCM3U26NYX3DMAEBNB237E5V \
  | 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: d762266e9af3717d8d80205a1d6fe4ed43e5741b55762fbfcdceebb0f5d1938d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64e8cec009442bd4d669cba8b56878e5b158db48ccec60dbb99acf4ef304a7bd",
    "cross_cats_sorted": [
      "cond-mat.stat-mech"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2018-12-21T17:42:44Z",
    "title_canon_sha256": "de1a7b5a226b98a97e82a2186bfd07444b97992479bed7dd5fc52d90373d73e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.09279",
    "kind": "arxiv",
    "version": 1
  }
}