Pith Number

pith:VVLQJHP2

pith:2009:VVLQJHP2VFJ6ZR6KR4MCCD5UGZ

not attested not anchored not stored refs pending

Detection of the Central Star of the Planetary Nebula NGC 6302

2), (2) JBCA, (3) ST-ECF, (4) Instituto de Astrofis\'ica de Andaluc\'ioa (CSIC), 5) ((1) ESO, (5) The Open University), Albert A. Zijlstra (2), C. Szyszka (1, J. R. Walsh (3), University of Manchester, Y. G. Tsamis (4

arxiv:0909.5143 v2 · 2009-09-28 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VVLQJHP2VFJ6ZR6KR4MCCD5UGZ}

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	2026-05-18T02:34:27.377557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad57049dfaa953ecc7ca8f18210fb43678443b64a5b32df0f2bea2ad650d7a70

Aliases

arxiv: 0909.5143 · arxiv_version: 0909.5143v2 · doi: 10.48550/arxiv.0909.5143 · pith_short_12: VVLQJHP2VFJ6 · pith_short_16: VVLQJHP2VFJ6ZR6K · pith_short_8: VVLQJHP2

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/VVLQJHP2VFJ6ZR6KR4MCCD5UGZ \
  | 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: ad57049dfaa953ecc7ca8f18210fb43678443b64a5b32df0f2bea2ad650d7a70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7412427b2d3f34ef72fc0c625c413e72ddf13eae3902903f2f7661347f9fee8e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-28T17:20:39Z",
    "title_canon_sha256": "e88a34e422063d76b89d0ef1d4e623f43bf05640cf4815bc20b9b18ce7e91375"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5143",
    "kind": "arxiv",
    "version": 2
  }
}