Pith Number

pith:XQL4D55H

pith:2013:XQL4D55HESIC3KAB52ODXUCZJL

not attested not anchored not stored refs pending

Categorical and Geographical Separation in Science

Janusz A. Holyst, Julian Sienkiewicz, Krzysztof Soja, Peter M. A. Sloot

arxiv:1307.0788 v2 · 2013-07-02 · physics.soc-ph · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XQL4D55HESIC3KAB52ODXUCZJL}

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	2026-05-18T03:04:37.583760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc17c1f7a724902da801ee9c3bd0594aec87fe36e560028f7819b110b5b3ddd0

Aliases

arxiv: 1307.0788 · arxiv_version: 1307.0788v2 · doi: 10.48550/arxiv.1307.0788 · pith_short_12: XQL4D55HESIC · pith_short_16: XQL4D55HESIC3KAB · pith_short_8: XQL4D55H

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/XQL4D55HESIC3KAB52ODXUCZJL \
  | 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: bc17c1f7a724902da801ee9c3bd0594aec87fe36e560028f7819b110b5b3ddd0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87a3e278d509d7645b04489fd8c4078d52d6d92f7fa6da3a2a1136ebdbe9c1b6",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2013-07-02T18:37:34Z",
    "title_canon_sha256": "5ebf6b1840e703f87f345868747948da46ff018d1cc04af60ddac618a58828e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.0788",
    "kind": "arxiv",
    "version": 2
  }
}