Pith Number

pith:IAHLWGWF

pith:2012:IAHLWGWFJ67XVLVDKAD3HPH5Z3

not attested not anchored not stored refs pending

The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)

Arne Henden, Charlie Finch, Dave Monet, Jennifer Bartlett, Marion Zacharias, Norbert Zacharias, Terry Girard

arxiv:1212.6182 v1 · 2012-12-26 · astro-ph.IM · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IAHLWGWFJ67XVLVDKAD3HPH5Z3}

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.

Cited by

1 paper in Pith

Gaia21bja: pre-main sequence star with quasi-periodic bursts

Receipt and verification

First computed	2026-05-18T01:52:27.396047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

400ebb1ac54fbf7aaea35007b3bcfdced76ffa735e92b7369a2592a7500e9603

Aliases

arxiv: 1212.6182 · arxiv_version: 1212.6182v1 · doi: 10.48550/arxiv.1212.6182 · pith_short_12: IAHLWGWFJ67X · pith_short_16: IAHLWGWFJ67XVLVD · pith_short_8: IAHLWGWF

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/IAHLWGWFJ67XVLVDKAD3HPH5Z3 \
  | 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: 400ebb1ac54fbf7aaea35007b3bcfdced76ffa735e92b7369a2592a7500e9603

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "caafbdc01a80c0d7944ad06d89202f42a7ae06242373677d5c1a32436ff6ee7d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-12-26T14:11:13Z",
    "title_canon_sha256": "f4e1cdd72843ebf4c613a5f6224e03e5f557fcee32fee1eaab65ab37ac79549f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.6182",
    "kind": "arxiv",
    "version": 1
  }
}