Pith Number

pith:QBA7Y5R4

pith:2010:QBA7Y5R4Q22ES7VUFH2ATCXQDB

not attested not anchored not stored refs pending

Abundances of Galactic Anticenter Planetary Nebulae and the Oxygen Abundance Gradient in the Galactic Disk

Anne E. Jaskot, Bruce Balick, Jacquelynne B. Milingo, Karen B. Kwitter, Michael A. Morrison, R.B.C. Henry

arxiv:1009.1921 v1 · 2010-09-10 · 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{QBA7Y5R4Q22ES7VUFH2ATCXQDB}

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	2026-05-18T02:05:32.265068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8041fc763c86b4497eb429f4098af0187c3bddc9549ab9c0c4a828645ff73e5a

Aliases

arxiv: 1009.1921 · arxiv_version: 1009.1921v1 · doi: 10.48550/arxiv.1009.1921 · pith_short_12: QBA7Y5R4Q22E · pith_short_16: QBA7Y5R4Q22ES7VU · pith_short_8: QBA7Y5R4

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/QBA7Y5R4Q22ES7VUFH2ATCXQDB \
  | 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: 8041fc763c86b4497eb429f4098af0187c3bddc9549ab9c0c4a828645ff73e5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a52dff81b8e0ef36ae4a2a5f7f3da3a65d5c545db5387cbbe7bc03e3d8c31d0f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-09-10T02:11:26Z",
    "title_canon_sha256": "6ad7d8376c64febb4da12c88ccf80bead432489c03b3bddba967394d0c4c37d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.1921",
    "kind": "arxiv",
    "version": 1
  }
}