Pith Number

pith:WJ3O7KKC

pith:2003:WJ3O7KKCPCBWIKPFBXMKJ3BWNW

not attested not anchored not stored refs pending

A new sample of young Planetary Nebulae

2), (2) Istituto di Fisica e Astronomia, C. Trigilio (1), G. Umana (1), Italy, Italy), L. Cerrigone (1, R.A. Zappala' (2) ((1) Istituto di Radioastronomia CNR, Universita' di Catania

arxiv:astro-ph/0310190 v1 · 2003-10-07 · astro-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{WJ3O7KKCPCBWIKPFBXMKJ3BWNW}

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	2026-07-04T14:13:03.821862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b276efa94278836429e50dd8a4ec366d81246ef4643a498043cb61c3569c1696

Aliases

arxiv: astro-ph/0310190 · arxiv_version: astro-ph/0310190v1 · doi: 10.48550/arxiv.astro-ph/0310190 · pith_short_12: WJ3O7KKCPCBW · pith_short_16: WJ3O7KKCPCBWIKPF · pith_short_8: WJ3O7KKC

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/WJ3O7KKCPCBWIKPFBXMKJ3BWNW \
  | 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: b276efa94278836429e50dd8a4ec366d81246ef4643a498043cb61c3569c1696

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "943b013b2415301d537c1f263907466f0d282535aeadc09ec2724ea52118b187",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-10-07T18:04:41Z",
    "title_canon_sha256": "13cf57feebef64fa1c1c7d468f2d983855d25d2beade1cdc9ead8b13b5299e08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0310190",
    "kind": "arxiv",
    "version": 1
  }
}