Pith Number

pith:BEWSCC3I

pith:2011:BEWSCC3I7PTT2AFLEX5LWYVJBM

not attested not anchored not stored refs pending

Measurement of night sky brightness in southern Australia

Daniel Hampf, Dieter Horns, Gavin Rowell, Martin Tluczykont, Neville Wild, Tristan Sudholz

arxiv:1105.1251 v1 · 2011-05-06 · 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{BEWSCC3I7PTT2AFLEX5LWYVJBM}

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	2026-05-18T03:33:26.703199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

092d210b68fbe73d00ab25fabb62a90b247a2f8a078bf560b22a7e0149268bad

Aliases

arxiv: 1105.1251 · arxiv_version: 1105.1251v1 · doi: 10.48550/arxiv.1105.1251 · pith_short_12: BEWSCC3I7PTT · pith_short_16: BEWSCC3I7PTT2AFL · pith_short_8: BEWSCC3I

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/BEWSCC3I7PTT2AFLEX5LWYVJBM \
  | 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: 092d210b68fbe73d00ab25fabb62a90b247a2f8a078bf560b22a7e0149268bad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b564c5828b6b568ac458d5483b536dbd3babaab85670e906fdb116561151833a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-05-06T09:45:39Z",
    "title_canon_sha256": "020ffac91f1036a1a9e62ac327b8b08a92ce4c93783f1e2644ddb6328451fdd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1251",
    "kind": "arxiv",
    "version": 1
  }
}