Pith Number

pith:YWA7FGMT

pith:2011:YWA7FGMTTSBZYOGEXPUW6IK633

not attested not anchored not stored refs pending

Carbon chemistry in Galactic Bulge Planetary Nebulae

A.A. Zijlstra, E. Lagadec, K. Gesicki, L. Guzman-Ramirez, Paul M. Woods, R. Ni Chuimin, T.J. Millar

arxiv:1102.4581 v1 · 2011-02-22 · 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{YWA7FGMTTSBZYOGEXPUW6IK633}

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	2026-05-18T02:03:06.406115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c581f299939c839c38c4bbe96f215edef03dc2ea5dbc9f771f2484341e1bb995

Aliases

arxiv: 1102.4581 · arxiv_version: 1102.4581v1 · doi: 10.48550/arxiv.1102.4581 · pith_short_12: YWA7FGMTTSBZ · pith_short_16: YWA7FGMTTSBZYOGE · pith_short_8: YWA7FGMT

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/YWA7FGMTTSBZYOGEXPUW6IK633 \
  | 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: c581f299939c839c38c4bbe96f215edef03dc2ea5dbc9f771f2484341e1bb995

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4417d4ecdaf62b7b89a9578290134f46ba4c93f07e620e7c2f37182f31e3f08f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-02-22T19:00:21Z",
    "title_canon_sha256": "685f885102b3e94c3e3d2f84e96cf14e7cbedabffc99b3534568f42b1bad94ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.4581",
    "kind": "arxiv",
    "version": 1
  }
}