Pith Number

pith:HS7LQ3XZ

pith:2013:HS7LQ3XZ4E2V7DCBXFUENSMVXR

not attested not anchored not stored refs pending

Dynamics and Spatial Distribution of Global Nighttime Lights

Didier Sornette, Nicola Pestalozzi, Peter Cauwels

arxiv:1303.2901 v1 · 2013-03-12 · physics.soc-ph · q-fin.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HS7LQ3XZ4E2V7DCBXFUENSMVXR}

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	2026-05-18T03:31:07.648745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cbeb86ef9e1355f8c41b96846c995bc6ec983d1f486044e9a6a350bc3593a20

Aliases

arxiv: 1303.2901 · arxiv_version: 1303.2901v1 · doi: 10.48550/arxiv.1303.2901 · pith_short_12: HS7LQ3XZ4E2V · pith_short_16: HS7LQ3XZ4E2V7DCB · pith_short_8: HS7LQ3XZ

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/HS7LQ3XZ4E2V7DCBXFUENSMVXR \
  | 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: 3cbeb86ef9e1355f8c41b96846c995bc6ec983d1f486044e9a6a350bc3593a20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bbca144af0710e605bcc27f1394e2ff43c21adb552d132abd08e91c7a5055b2",
    "cross_cats_sorted": [
      "q-fin.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2013-03-12T14:47:14Z",
    "title_canon_sha256": "6f37a6a979d1a9501baec4e1e92ffa2b85d1651520735993ab437e72931151ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2901",
    "kind": "arxiv",
    "version": 1
  }
}