Pith Number

pith:SN3LWPQI

pith:2003:SN3LWPQI6DTS7GZSZUNFUQZSZL

not attested not anchored not stored refs pending

X-ray Observations of Planetary Nebulae

M.A. Guerrero, R.A. Gruendl (University of Illinois), Y.-H. Chu

arxiv:astro-ph/0310309 v1 · 2003-10-10 · 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{SN3LWPQI6DTS7GZSZUNFUQZSZL}

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	2026-07-04T14:13:04.682074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9376bb3e08f0e72f9b32cd1a5a4332cac281dceea36faa16f7707d147f7367c3

Aliases

arxiv: astro-ph/0310309 · arxiv_version: astro-ph/0310309v1 · doi: 10.48550/arxiv.astro-ph/0310309 · pith_short_12: SN3LWPQI6DTS · pith_short_16: SN3LWPQI6DTS7GZS · pith_short_8: SN3LWPQI

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/SN3LWPQI6DTS7GZSZUNFUQZSZL \
  | 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: 9376bb3e08f0e72f9b32cd1a5a4332cac281dceea36faa16f7707d147f7367c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c530b85d8f922ac9759ac07c16dd5a8afb71ddba0619b72da8d094750fa1992b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-10-10T22:59:17Z",
    "title_canon_sha256": "5b9d8562fc8326121c9d75ac5ee6bd3100961e2ff6aec889140bf2aead8fab7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0310309",
    "kind": "arxiv",
    "version": 1
  }
}