Pith Number

pith:6IWA2VTO

pith:2019:6IWA2VTOCQP2FQUFUQCOHNZ6FB

not attested not anchored not stored refs pending

The nature of the diffuse light near cities detected in nighttime satellite imagery

Alejandro S\'anchez de Miguel, Christopher C. M. Kyba, Jaime Zamorano, Jes\'us Gallego, Kevin J. Gaston

arxiv:1908.05482 v1 · 2019-08-15 · astro-ph.IM · physics.ao-ph · physics.space-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6IWA2VTOCQP2FQUFUQCOHNZ6FB}

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	2026-07-05T01:01:35.634403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f22c0d566e141fa2c285a404e3b73e2855830d93d417eacf11f269a701481886

Aliases

arxiv: 1908.05482 · arxiv_version: 1908.05482v1 · doi: 10.48550/arxiv.1908.05482 · pith_short_12: 6IWA2VTOCQP2 · pith_short_16: 6IWA2VTOCQP2FQUF · pith_short_8: 6IWA2VTO

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/6IWA2VTOCQP2FQUFUQCOHNZ6FB \
  | 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: f22c0d566e141fa2c285a404e3b73e2855830d93d417eacf11f269a701481886

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7823432e74544150a1872a12a03da264a14efed94bafda73a393b035cd06a7d",
    "cross_cats_sorted": [
      "physics.ao-ph",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-08-15T10:28:55Z",
    "title_canon_sha256": "7cf77855f5f8d52ba35819bb945f18bb873ce9a453c25b3a8345a52ff3047799"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05482",
    "kind": "arxiv",
    "version": 1
  }
}