Pith Number

pith:JRCMKUQG

pith:2014:JRCMKUQGJLUQZA2BL24WD3FDKK

not attested not anchored not stored refs pending

Contributions of artificial lighting sources on light pollution in Hong Kong measured through a night sky brightness monitoring network

Chung Fai Wong, Chun Shing Jason Pun, Chu Wing So, Wai Yan Leung

arxiv:1401.1200 v1 · 2014-01-04 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JRCMKUQGJLUQZA2BL24WD3FDKK}

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	2026-05-18T02:55:56.998373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c44c552064ae90c83415eb961eca352a356c96e1f0092d35c4e32468936117b

Aliases

arxiv: 1401.1200 · arxiv_version: 1401.1200v1 · doi: 10.48550/arxiv.1401.1200 · pith_short_12: JRCMKUQGJLUQ · pith_short_16: JRCMKUQGJLUQZA2B · pith_short_8: JRCMKUQG

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/JRCMKUQGJLUQZA2BL24WD3FDKK \
  | 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: 4c44c552064ae90c83415eb961eca352a356c96e1f0092d35c4e32468936117b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5166a9a6dc5f8d076ad6aa841f6b60bc9f9ef4adf8f039ade1cece39ba6f9b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-01-04T05:36:45Z",
    "title_canon_sha256": "f5e4957a917775d1f1faed6f5eb23eb3a0f30df26bfb097e94509edbfcaddb88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.1200",
    "kind": "arxiv",
    "version": 1
  }
}