Pith Number

pith:FHMB3CLJ

pith:2010:FHMB3CLJAJPYZBBG5QDVNAITSY

not attested not anchored not stored refs pending

Light pollution at high zenith angles, as measured at Cerro Tololo Inter-American Observatory

Hector Bogglio, Kevin Krisciunas, Malcolm G. Smith, Pedro Sanhueza

arxiv:1001.2246 v1 · 2010-01-13 · 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{FHMB3CLJAJPYZBBG5QDVNAITSY}

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	2026-05-18T02:09:52.677486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29d81d8969025f8c8426ec07568113961cfbfa5032c18375e95b1ae54348aaa8

Aliases

arxiv: 1001.2246 · arxiv_version: 1001.2246v1 · doi: 10.48550/arxiv.1001.2246 · pith_short_12: FHMB3CLJAJPY · pith_short_16: FHMB3CLJAJPYZBBG · pith_short_8: FHMB3CLJ

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/FHMB3CLJAJPYZBBG5QDVNAITSY \
  | 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: 29d81d8969025f8c8426ec07568113961cfbfa5032c18375e95b1ae54348aaa8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8301f2495d02b9c107c31ff0512db2e7429deef8d592b7436ae26ed5ad9b7540",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-01-13T18:00:34Z",
    "title_canon_sha256": "8908f16e450772c7e27255a5638c9bf2b2d1609d012e08500efc52285912ecf7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.2246",
    "kind": "arxiv",
    "version": 1
  }
}