Pith Number

pith:OP2PH7QQ

pith:2016:OP2PH7QQOHK2IFRYQECFKNHYF6

not attested not anchored not stored refs pending

Evaluating the summer night sky brightness at a research field site on Lake Stechlin in northeastern Germany

Andreas Jechow, Christopher C.M. Kyba, Franz H\"olker, Mark O. Gessner, Zolt\'an Koll\'ath

arxiv:1602.04537 v1 · 2016-02-15 · astro-ph.SR · 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{OP2PH7QQOHK2IFRYQECFKNHYF6}

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	2026-05-18T01:20:49.716101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73f4f3fe1071d5a4163881045534f82f8b7dfbe8ff6cb11d668cebb7dc6fecde

Aliases

arxiv: 1602.04537 · arxiv_version: 1602.04537v1 · doi: 10.48550/arxiv.1602.04537 · pith_short_12: OP2PH7QQOHK2 · pith_short_16: OP2PH7QQOHK2IFRY · pith_short_8: OP2PH7QQ

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/OP2PH7QQOHK2IFRYQECFKNHYF6 \
  | 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: 73f4f3fe1071d5a4163881045534f82f8b7dfbe8ff6cb11d668cebb7dc6fecde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33c79dcbe07b675ac4f16201a8f286864d02c7dbdd306a5e12e52231eec4f7cf",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-02-15T01:28:37Z",
    "title_canon_sha256": "ece4161a29e68804070bc72e67ae90e9bafcef96df4d02f9a2f0ee6967ad67a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.04537",
    "kind": "arxiv",
    "version": 1
  }
}