Pith Number

pith:7HMVQGCI

pith:2014:7HMVQGCI6K2JFDTWZOQAFE4ZY6

not attested not anchored not stored refs pending

Herschel Planetary Nebula Survey (HerPlaNS) - First Detection of OH+ in Planetary Nebulae

A. A. Zijlstra, A. G. G. M. Tielens, D. Ladjal, E. Villaver, H. Izumiura, I. Aleman, I. McDonald, J. H. Kastner, K. M. Exter, M. Wittkowski, N. Siodmiak, P. A. M. van Hoof, R. Montez, R. Sahai, R. Szczerba, T. Ueta, W. Vlemmings, Y. H. Chu

arxiv:1404.2431 v2 · 2014-04-09 · 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{7HMVQGCI6K2JFDTWZOQAFE4ZY6}

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	2026-05-18T02:48:36.381513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9d9581848f2b4928e76cba0029399c782c6cc72a2d6a9c9adbdea3621afd2ea

Aliases

arxiv: 1404.2431 · arxiv_version: 1404.2431v2 · doi: 10.48550/arxiv.1404.2431 · pith_short_12: 7HMVQGCI6K2J · pith_short_16: 7HMVQGCI6K2JFDTW · pith_short_8: 7HMVQGCI

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/7HMVQGCI6K2JFDTWZOQAFE4ZY6 \
  | 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: f9d9581848f2b4928e76cba0029399c782c6cc72a2d6a9c9adbdea3621afd2ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c6af627ff3c093223385c9aec2309dd94924443eb89a8d73c58ec467158bb4d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-04-09T10:59:34Z",
    "title_canon_sha256": "76ca063492f9134741ebec5d70280d1802b50dee42131169350150ac1511f55b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.2431",
    "kind": "arxiv",
    "version": 2
  }
}