Pith Number

pith:O7CKMZCQ

pith:2017:O7CKMZCQEE6VLQFC4OUWC367B5

not attested not anchored not stored refs pending

Measuring Light Pollution with Fisheye Lens Imagery from A Moving Boat, A Proof of Concept

Amit Lerner, Andreas H\"anel, Andreas Jechow, Christopher C.M. Kyba, Franz H\"olker, Nadav Shashar, Zolt\'an Koll\'ath

arxiv:1703.08484 v1 · 2017-03-22 · q-bio.OT · 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{O7CKMZCQEE6VLQFC4OUWC367B5}

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	2026-05-18T00:47:59.857949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77c4a66450213d55c0a2e3a9616fdf0f4088980528ff44f178bca8a2090f4b6b

Aliases

arxiv: 1703.08484 · arxiv_version: 1703.08484v1 · doi: 10.48550/arxiv.1703.08484 · pith_short_12: O7CKMZCQEE6V · pith_short_16: O7CKMZCQEE6VLQFC · pith_short_8: O7CKMZCQ

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/O7CKMZCQEE6VLQFC4OUWC367B5 \
  | 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: 77c4a66450213d55c0a2e3a9616fdf0f4088980528ff44f178bca8a2090f4b6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b825be088ec37316062eff5b57cc364aa1853c8e99d5129666c31653730c853",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.OT",
    "submitted_at": "2017-03-22T08:51:03Z",
    "title_canon_sha256": "717ce3cc6506f9eb12d100873e043473c7a902ba42bc96633feef4bd4f4c83c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.08484",
    "kind": "arxiv",
    "version": 1
  }
}