Pith Number

pith:ZOKCFUEF

pith:2011:ZOKCFUEFU7MHLIJMGIOLRRUPCB

not attested not anchored not stored refs pending

C/O Abundance Ratios and Dust Features in Galactic Planetary Nebulae

G. Delgado-Inglada, M. Rodr\'iguez

arxiv:1109.1867 v1 · 2011-09-09 · 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{ZOKCFUEFU7MHLIJMGIOLRRUPCB}

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	2026-05-18T02:00:37.538774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb9422d085a7d875a12c321cb8c68f107363fe11173ef6a2b8d9f3a996cc6175

Aliases

arxiv: 1109.1867 · arxiv_version: 1109.1867v1 · doi: 10.48550/arxiv.1109.1867 · pith_short_12: ZOKCFUEFU7MH · pith_short_16: ZOKCFUEFU7MHLIJM · pith_short_8: ZOKCFUEF

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/ZOKCFUEFU7MHLIJMGIOLRRUPCB \
  | 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: cb9422d085a7d875a12c321cb8c68f107363fe11173ef6a2b8d9f3a996cc6175

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28bd1ed344a16519dd8aab6b4ec1d1edae1daf3d8d23199736a4e60ef141c756",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-09-09T00:43:17Z",
    "title_canon_sha256": "1f3f725e26e81626309ab8bab8d43a74d5dc81fb3168f630e33fad27028c91ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1867",
    "kind": "arxiv",
    "version": 1
  }
}