Pith Number

pith:WEMTIGYO

pith:2018:WEMTIGYOPYUC4O5LVO7BP3AETQ

not attested not anchored not stored refs pending

Skyglow Changes Over Tucson, Arizona, Resulting From A Municipal LED Street Lighting Conversion

Amy Juan, Christian K. Monrad, Constance E. Walker, Franti\v{s}ek Kundracik, John C. Barentine, John Kanemoto, Miroslav Kocifaj

arxiv:1802.03474 v1 · 2018-02-09 · 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{WEMTIGYOPYUC4O5LVO7BP3AETQ}

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	2026-05-18T00:02:12.956117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b119341b0e7e282e3bababbe17ec049c299c20acc7b2c8f1d5853708bf5f5dd0

Aliases

arxiv: 1802.03474 · arxiv_version: 1802.03474v1 · doi: 10.48550/arxiv.1802.03474 · pith_short_12: WEMTIGYOPYUC · pith_short_16: WEMTIGYOPYUC4O5L · pith_short_8: WEMTIGYO

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/WEMTIGYOPYUC4O5LVO7BP3AETQ \
  | 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: b119341b0e7e282e3bababbe17ec049c299c20acc7b2c8f1d5853708bf5f5dd0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05dace7df34192e7531726f71b75a3b8e3f3021b44e16dc6707f4359e1595307",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-02-09T23:09:13Z",
    "title_canon_sha256": "50336a87e67eda2c5813f459a3ab44740f0d02ebaa6afd53de948135db789d80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.03474",
    "kind": "arxiv",
    "version": 1
  }
}