Pith Number

pith:K44RQ3AE

pith:2012:K44RQ3AEOMKUKECORKSWCBEVKM

not attested not anchored not stored refs pending

The Curious Conundrum Regarding Sulfur Abundances In Planetary Nebulae

A. I. Karakas, A. Speck, G. J. Ferland, M. Maguire, R. B. C. Henry

arxiv:1202.1563 v1 · 2012-02-07 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K44RQ3AEOMKUKECORKSWCBEVKM}

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	2026-05-18T01:58:32.637354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5739186c04731545104e8aa5610495530a4419bc8adf6eea1f5890f8ef551a2a

Aliases

arxiv: 1202.1563 · arxiv_version: 1202.1563v1 · doi: 10.48550/arxiv.1202.1563 · pith_short_12: K44RQ3AEOMKU · pith_short_16: K44RQ3AEOMKUKECO · pith_short_8: K44RQ3AE

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/K44RQ3AEOMKUKECORKSWCBEVKM \
  | 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: 5739186c04731545104e8aa5610495530a4419bc8adf6eea1f5890f8ef551a2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "baa7bb26f1f27fb39241bdbb6837c3717143ae7ae72ff93414d2909ba624b51c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-02-07T23:50:17Z",
    "title_canon_sha256": "3f6fa90634dae7e569130607b299b9e1f85d7a787bca7167dcbf37a2b6dbffaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.1563",
    "kind": "arxiv",
    "version": 1
  }
}