Pith Number

pith:V74FVDSF

pith:2010:V74FVDSF5KXKAW3FTELWVLBSEQ

not attested not anchored not stored refs pending

Fraction of clear skies above astronomical sites: a new analysis from the GOES12 satellite

S. Cavazzani, S. Ortolani, V.Zitelli, Y.Maruccia

arxiv:1011.4815 v1 · 2010-11-22 · astro-ph.IM · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V74FVDSF5KXKAW3FTELWVLBSEQ}

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	2026-05-18T02:04:42.614033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aff85a8e45eaaea05b6599176aac32242fed02f90169021a42366fa1ba1e5380

Aliases

arxiv: 1011.4815 · arxiv_version: 1011.4815v1 · doi: 10.48550/arxiv.1011.4815 · pith_short_12: V74FVDSF5KXK · pith_short_16: V74FVDSF5KXKAW3F · pith_short_8: V74FVDSF

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/V74FVDSF5KXKAW3FTELWVLBSEQ \
  | 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: aff85a8e45eaaea05b6599176aac32242fed02f90169021a42366fa1ba1e5380

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f55bae3535a4c9ed3c6a1c611fed5c872eee88bafe1e8c9c5687e42cd3d2eb52",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-11-22T14:00:10Z",
    "title_canon_sha256": "ba74ed592d57b30ebb1dfad7b77698e29fa3848be14fd0a989f4f9bcaec09316"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.4815",
    "kind": "arxiv",
    "version": 1
  }
}