Pith Number

pith:NLZET25S

pith:2012:NLZET25SGE6S7AQDVMO6IIF7PC

not attested not anchored not stored refs pending

Excited OH+, H2O+, and H3O+ in NGC 4418 and Arp 220

A. Contursi, A. Poglitsch, A. Sternberg, A. Verma, D. Lutz, E. Gonz\'alez-Alfonso, E. Sturm, H. Feuchtgruber, H. S. P. M\"uller, J. Fischer, J. Graci\'a-Carpio, L. Tacconi, N. Christopher, R. Davies, R. Genzel, S. Bruderer, S. Hailey-Dunsheath, S. Veilleux

arxiv:1211.5064 v1 · 2012-11-21 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NLZET25SGE6S7AQDVMO6IIF7PC}

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	2026-05-18T03:03:55.095831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6af249ebb2313d2f8203ab1de420bf789979337653d2a7ab084b0542e2de4d53

Aliases

arxiv: 1211.5064 · arxiv_version: 1211.5064v1 · doi: 10.48550/arxiv.1211.5064 · pith_short_12: NLZET25SGE6S · pith_short_16: NLZET25SGE6S7AQD · pith_short_8: NLZET25S

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/NLZET25SGE6S7AQDVMO6IIF7PC \
  | 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: 6af249ebb2313d2f8203ab1de420bf789979337653d2a7ab084b0542e2de4d53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a811ab48591a3487343a60208554ead0d3a12def887798dfed77836a52f48f7",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-11-21T15:44:26Z",
    "title_canon_sha256": "af99b0c48c2fe97cf47878b35e1b414c6907b5f613d6cedde622bfd4f3ac53e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.5064",
    "kind": "arxiv",
    "version": 1
  }
}