Pith Number

pith:NXD732RE

pith:2011:NXD732REHF35HSGZX47BTGPBZP

not attested not anchored not stored refs pending

An estimate of the temporal fraction of cloud cover at San Pedro M\'artir Observatory

A. Carrami\~nana, E. Carrasco, I. Cruz-Gonz\'alez, L. J. S\'anchez, R. Avila

arxiv:1112.3903 v1 · 2011-12-16 · astro-ph.IM · physics.ao-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NXD732REHF35HSGZX47BTGPBZP}

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	2026-05-18T01:59:06.590670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6dc7fdea243977d3c8d9bf3e1999e1cbc9b86bb6374876620ca08d3225a8c34a

Aliases

arxiv: 1112.3903 · arxiv_version: 1112.3903v1 · doi: 10.48550/arxiv.1112.3903 · pith_short_12: NXD732REHF35 · pith_short_16: NXD732REHF35HSGZ · pith_short_8: NXD732RE

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/NXD732REHF35HSGZX47BTGPBZP \
  | 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: 6dc7fdea243977d3c8d9bf3e1999e1cbc9b86bb6374876620ca08d3225a8c34a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5bddb95364bb02fcdaa4066492996659e1831481f19cc1f4e9a82717c3da9dd",
    "cross_cats_sorted": [
      "physics.ao-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-12-16T17:56:00Z",
    "title_canon_sha256": "36357af0a94f658cc590e92526c705c97054879686732fbcddb48062f130a2b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.3903",
    "kind": "arxiv",
    "version": 1
  }
}