Pith Number

pith:F6NQB5FA

pith:2013:F6NQB5FA6XX7GI2B6MBUV5L3AF

not attested not anchored not stored refs pending

Is the Sulphur Anomaly in Planetary Nebulae Caused by the s-Process?

Amanda I. Karakas, Luke J. Shingles

arxiv:1302.6758 v2 · 2013-02-27 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F6NQB5FA6XX7GI2B6MBUV5L3AF}

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	2026-05-18T03:22:05.423788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f9b00f4a0f5eff32341f3034af57b015026d85e6aa48c75bbf60fb242de9464

Aliases

arxiv: 1302.6758 · arxiv_version: 1302.6758v2 · doi: 10.48550/arxiv.1302.6758 · pith_short_12: F6NQB5FA6XX7 · pith_short_16: F6NQB5FA6XX7GI2B · pith_short_8: F6NQB5FA

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/F6NQB5FA6XX7GI2B6MBUV5L3AF \
  | 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: 2f9b00f4a0f5eff32341f3034af57b015026d85e6aa48c75bbf60fb242de9464

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2cc231e52d09294e76dd2688f8ec134d7f611c3873b0c050484b34df1fec394",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-02-27T13:07:57Z",
    "title_canon_sha256": "b0f1bc38b0f771df9fc71ff382434f82169d8cb23c84a1aaa8d32a8a5af28da8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.6758",
    "kind": "arxiv",
    "version": 2
  }
}