Pith Number

pith:7RPQSAVL

pith:2021:7RPQSAVLFI7UWW4WRY4KNTWT3D

not attested not anchored not stored refs pending

The Temporal Analysis of Light Pollution in Turkey using VIIRS data

A. Aktay, M.A. Erdo\u{g}an, M. Bayazit, N. Aksaker, S.K. Yerli, Z. Kurt

arxiv:2103.10456 v2 · 2021-03-18 · 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{7RPQSAVLFI7UWW4WRY4KNTWT3D}

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	2026-07-05T02:30:15.422200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc5f0902ab2a3f4b5b968e38a6ced3d8d0c110ad82fb92fc621259ff7494b9d3

Aliases

arxiv: 2103.10456 · arxiv_version: 2103.10456v2 · doi: 10.48550/arxiv.2103.10456 · pith_short_12: 7RPQSAVLFI7U · pith_short_16: 7RPQSAVLFI7UWW4W · pith_short_8: 7RPQSAVL

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/7RPQSAVLFI7UWW4WRY4KNTWT3D \
  | 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: fc5f0902ab2a3f4b5b968e38a6ced3d8d0c110ad82fb92fc621259ff7494b9d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce5f47713169aa8d61b05944733f95ffa91ddb8d6a56e312d54754447ffb57ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-03-18T18:15:20Z",
    "title_canon_sha256": "76fee7c6b0a5e87265935d0800d63eec83e25266da5852a372138394ed39f237"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.10456",
    "kind": "arxiv",
    "version": 2
  }
}