Pith Number

pith:QNN3UXJA

pith:2009:QNN3UXJAZFTLGL7BZDX5WLMN3J

not attested not anchored not stored refs pending

Astrometry with "Carte du Ciel" plates, San Fernando zone. II. CdC-SF: a precise proper motion catalogue

Belen Vicente (IAA-CSIC, Carlos Abad (CIDA), Francisco Garzon (IAC), IAC), Terrence M. Girard (YALE Univ.)

arxiv:0911.3120 v1 · 2009-11-16 · astro-ph.GA · 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{QNN3UXJAZFTLGL7BZDX5WLMN3J}

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	2026-05-18T02:10:47.125730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

835bba5d20c966b32fe1c8efdb2d8dda786066b49f487aae28ccf677f5d911eb

Aliases

arxiv: 0911.3120 · arxiv_version: 0911.3120v1 · doi: 10.48550/arxiv.0911.3120 · pith_short_12: QNN3UXJAZFTL · pith_short_16: QNN3UXJAZFTLGL7B · pith_short_8: QNN3UXJA

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/QNN3UXJAZFTLGL7BZDX5WLMN3J \
  | 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: 835bba5d20c966b32fe1c8efdb2d8dda786066b49f487aae28ccf677f5d911eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5743ed44040a676b6415c5309cb1395f3bd5073b3a054f9216b00d52a7ccac38",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-11-16T19:27:02Z",
    "title_canon_sha256": "3dee7cde7f95050221a652cd92dea7338f0691f8e50a7b87c78dae36e668a01c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.3120",
    "kind": "arxiv",
    "version": 1
  }
}