Pith Number

pith:32MSSKSU

pith:2019:32MSSKSUBCGP4Q6OM5P76HKWNL

not attested not anchored not stored refs pending

A New Radio Molecular Line Survey of Planetary Nebulae: HNC/HCN as a Diagnostic of Ultraviolet Irradiation

Javier Alcolea, Jesse Bublitz, Joel H. Kastner, Miguel Santander-Garc\'ia, Rodolfo Montez Jr, Valentin Bujarrabal

arxiv:1904.08440 v1 · 2019-04-17 · astro-ph.SR · 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{32MSSKSUBCGP4Q6OM5P76HKWNL}

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	2026-05-17T23:45:26.772987Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de99292a54088cfe43ce675fff1d566ac76e4be6b27115a853254ed625da70d5

Aliases

arxiv: 1904.08440 · arxiv_version: 1904.08440v1 · doi: 10.48550/arxiv.1904.08440 · pith_short_12: 32MSSKSUBCGP · pith_short_16: 32MSSKSUBCGP4Q6O · pith_short_8: 32MSSKSU

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/32MSSKSUBCGP4Q6OM5P76HKWNL \
  | 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: de99292a54088cfe43ce675fff1d566ac76e4be6b27115a853254ed625da70d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03db5ac1259225b0dac6f0659da100f0ca9d9708f54872086611ac68c50e977c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-04-17T18:12:00Z",
    "title_canon_sha256": "f116fe5d577574e5905b035a31431ab088db4670f99d5eb06e2fa169d264eb58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08440",
    "kind": "arxiv",
    "version": 1
  }
}