Pith Number

pith:CQOCSADH

pith:2015:CQOCSADH4DXWPCSHC74QIFG2WU

not attested not anchored not stored refs pending

Roads and cities of $18^{th}$ century France

Julien Perret, Marc Barthelemy, Maurizio Gribaudi

arxiv:1509.09055 v1 · 2015-09-30 · physics.soc-ph · cond-mat.dis-nn · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CQOCSADH4DXWPCSHC74QIFG2WU}

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	2026-05-18T01:31:29.215897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

141c290067e0ef678a4717f90414dab501318555993f904d2014bc8eba361a9f

Aliases

arxiv: 1509.09055 · arxiv_version: 1509.09055v1 · doi: 10.48550/arxiv.1509.09055 · pith_short_12: CQOCSADH4DXW · pith_short_16: CQOCSADH4DXWPCSH · pith_short_8: CQOCSADH

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/CQOCSADH4DXWPCSHC74QIFG2WU \
  | 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: 141c290067e0ef678a4717f90414dab501318555993f904d2014bc8eba361a9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e70a8b59c1a0c1e89049837c724e0a069317ab5b0d5ecbcd1f5dcd12b145f581",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2015-09-30T08:07:36Z",
    "title_canon_sha256": "9614ee872b32c0a4c78ff8179f54e4f9bfd6127620e14ea1e9774224e4eff50f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.09055",
    "kind": "arxiv",
    "version": 1
  }
}