Pith Number

pith:KO4G4P5Q

pith:2006:KO4G4P5QSTZ3UQPZZZBBXBFGVP

not attested not anchored not stored refs pending

The Abundances of Light Neutron-Capture Elements in Planetary Nebulae -- I. Photoionization Modeling and Ionization Corrections

2), (2) NASA Goddard Space Flight Center), Harriet L. Dinerstein (1), N. C. Sterling (1, T. R. Kallman (2) ((1) University of Texas at Austin

arxiv:astro-ph/0611638 v1 · 2006-11-20 · 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{KO4G4P5QSTZ3UQPZZZBBXBFGVP}

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	2026-07-04T14:57:26.710863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53b86e3fb094f3ba41f9ce421b84a6abf224e764e7a779b2bcaa51419459dd36

Aliases

arxiv: astro-ph/0611638 · arxiv_version: astro-ph/0611638v1 · doi: 10.48550/arxiv.astro-ph/0611638 · pith_short_12: KO4G4P5QSTZ3 · pith_short_16: KO4G4P5QSTZ3UQPZ · pith_short_8: KO4G4P5Q

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/KO4G4P5QSTZ3UQPZZZBBXBFGVP \
  | 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: 53b86e3fb094f3ba41f9ce421b84a6abf224e764e7a779b2bcaa51419459dd36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99d096e74c1197f0acbef9d16b516191b12086bbbfe7f3b6f4a00a9d68f97e60",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-11-20T18:36:47Z",
    "title_canon_sha256": "07d3ae1bb8dac91185d299f08e3c70f99a969b74c78f4d6ff50db4acad012a8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0611638",
    "kind": "arxiv",
    "version": 1
  }
}