Pith Number

pith:U23NZIPW

pith:2014:U23NZIPWFZ6UD72EF5UEE4DSPQ

not attested not anchored not stored refs pending

Zinc abundances of planetary nebulae

Albert A. Zijlstra, Christina L. Smith, Harriet L. Dinerstein

arxiv:1404.2524 v1 · 2014-04-09 · 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{U23NZIPWFZ6UD72EF5UEE4DSPQ}

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	2026-05-18T01:43:36.094008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6b6dca1f62e7d41ff442f684270727c1acb25f8f70538ad5fe6cc40c9f763a0

Aliases

arxiv: 1404.2524 · arxiv_version: 1404.2524v1 · doi: 10.48550/arxiv.1404.2524 · pith_short_12: U23NZIPWFZ6U · pith_short_16: U23NZIPWFZ6UD72E · pith_short_8: U23NZIPW

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/U23NZIPWFZ6UD72EF5UEE4DSPQ \
  | 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: a6b6dca1f62e7d41ff442f684270727c1acb25f8f70538ad5fe6cc40c9f763a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f2362a2710916bbc0dc83cd2ca39f12f888874193466f95bc4b31c757e2d45f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-04-09T15:43:48Z",
    "title_canon_sha256": "fbace799245b5eb268b5ef1887e53a0c8bc04455b1425b9bfe8e208504a21ee0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.2524",
    "kind": "arxiv",
    "version": 1
  }
}