Pith Number

pith:Z5Y434F3

pith:2004:Z5Y434F3J3GJSRLVABGKJU3Z35

not attested not anchored not stored refs pending

Extragalactic Planetary Nebulae: Observational Challenges & Future Prospects

(2) Anglo-Australian Observatory, 2) & Richard Shaw (3) ((1) Macquarie University, (3) NOAO, Australia, Quentin A Parker (1, Sydney, USA)

arxiv:astro-ph/0412176 v1 · 2004-12-08 · 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{Z5Y434F3J3GJSRLVABGKJU3Z35}

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	2026-05-18T01:40:34.757378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf71cdf0bb4ecc994575004ca4d379df565fe7de2e3845ba3afa7d94a7f5c99c

Aliases

arxiv: astro-ph/0412176 · arxiv_version: astro-ph/0412176v1 · doi: 10.48550/arxiv.astro-ph/0412176 · pith_short_12: Z5Y434F3J3GJ · pith_short_16: Z5Y434F3J3GJSRLV · pith_short_8: Z5Y434F3

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/Z5Y434F3J3GJSRLVABGKJU3Z35 \
  | 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: cf71cdf0bb4ecc994575004ca4d379df565fe7de2e3845ba3afa7d94a7f5c99c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88daadba48aa5bd2746cc4661ab73a2f4b28e05db833f19765c27a60a74a8957",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-12-08T06:03:16Z",
    "title_canon_sha256": "30560aaf3f51aa252a715c9b9e59214b2b858d8cbccd6ca631d49a3d26091833"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0412176",
    "kind": "arxiv",
    "version": 1
  }
}